Angiotensin II causes rise in blood pressure by: A. Direct vasoconstriction B. Releasing adrenaline from adrenal medulla C. Increasing central sympathetic tone D. All of the above

Angiotensin II causes rise in blood pressure by:
A. Direct vasoconstriction
B. Releasing adrenaline from adrenal medulla
C. Increasing central sympathetic tone
D. All of the above
by

1 Answer

Answer :

D. All of the above
by

Related questions

Angiotensin III is equipotent to angiotensin II in: A. Releasing aldosterone from adrenal cortex B. Promoting Na+ and water reabsorption by direct intrarenal action C. Causing vasoconstriction D. Contracting intestinal smooth muscle

Description : Angiotensin III is equipotent to angiotensin II in: A. Releasing aldosterone from adrenal cortex B. Promoting Na+ and water reabsorption by direct intrarenal action C. Causing vasoconstriction D. Contracting intestinal smooth muscle

Last Answer : A. Releasing aldosterone from adrenal cortex

A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neuro- hormonal control system? (a) Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal medulla. (b) Neurotransmitters diffuse rapidly across the cleft and transmit a nerve impulse. (c) Hypothalamus activates the parasympathetic division of brain. (d) Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal cortex.

Description : A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neuro- hormonal control system? ... brain. (d) Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal cortex.

Last Answer : (a) Sympathetic nervous system is activated releasing epinephrine and norepinephrine from adrenal medulla.

A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neuro-hormonal control system ? (1) Sympathetic nervous system is activated releasing epinephrin and norepinephrin from adrenal cortex (2) Sympathetic nervous system is activated releasing epinephrin and norepinephrin from adrenal medulla (3) Neurotransmitters diffuse rapidly across the cleft and transmit a nerve impulse (4) Hypothalamus activates the parasympathetic division of brain

Description : A person entering an empty room suddenly finds a snake right in front on opening the door. Which one of the following is likely to happen in his neuro-hormonal control system ? (1 ... across the cleft and transmit a nerve impulse (4) Hypothalamus activates the parasympathetic division of brain

Last Answer : (2) Sympathetic nervous system is activated releasing epinephrin and norepinephrin from adrenal medulla

Digitalis slows the heart in congestive heart failure by: A. Increasing vagal tone B. Decreasing sympathetic overactivity C. Direct depression of sinoatrial node D. All of the above

Description : Digitalis slows the heart in congestive heart failure by: A. Increasing vagal tone B. Decreasing sympathetic overactivity C. Direct depression of sinoatrial node D. All of the above

Last Answer : D. All of the above

The usual cardiovascular effect of levodopa is: A. Bradycardia due to increased vagal tone B. Rise in blood pressure due to increased noradrenaline content of adrenergic nerve endings C. Fall in blood pressure due to decrease in sympathetic tone D. Both ‘A’ and ‘B’ are correct

Description : The usual cardiovascular effect of levodopa is: A. Bradycardia due to increased vagal tone B. Rise in blood pressure due to increased noradrenaline content of adrenergic nerve endings C. Fall in blood pressure due to decrease in sympathetic tone D. Both ‘A’ and ‘B’ are correct

Last Answer : C. Fall in blood pressure due to decrease in sympathetic tone

Ergometrine stops postpartum haemorrhage by: A. Causing vasoconstriction of uterine arteries B. Increasing tone of uterine muscle C. Promoting coagulation D. Inducing platelet aggregation

Description : Ergometrine stops postpartum haemorrhage by: A. Causing vasoconstriction of uterine arteries B. Increasing tone of uterine muscle C. Promoting coagulation D. Inducing platelet aggregation

Last Answer : B. Increasing tone of uterine muscle

Which of the following statement(s) is/are true concerning the neuroendocrine responses to shock? a. Sympathetic nerve endings release epinephrine which is responsible for greater than 80% of systemic vascular resistance b. Endogenous epinephrine is the primary contributor to systemic vascular resistance c. Increased pancreatic secretion of glucagon contributes to glucose intolerance associated with injury and sepsis d. The renin-angiotensin axis further augments the sympathetic-mediated vasoconstriction

Description : Which of the following statement(s) is/are true concerning the neuroendocrine responses to shock? a. Sympathetic nerve endings release epinephrine which is responsible for greater than 80% ... injury and sepsis d. The renin-angiotensin axis further augments the sympathetic-mediated vasoconstriction

Last Answer : Answer: c, d The neuroendocrine response to shock attempts to achieve restoration of effective blood volume, mobilization of metabolic substrates, and maintenance of central ... . Angiotensin II is an extremely effective vasoconstrictor that further augments sympathetic-mediated vasoconstriction

Fight-or-flight reactions cause activation of (a) the parathyroid glands, leading to increased metabolic rate (b) the kidney, leading to suppression of renin- angiotensin-aldosterone pathway (c) the adrenal medulla, leading to increased secretion of epinephrine and norepinephrine (d) the pancreas leading to a reduction in the blood sugar levels.

Description : Fight-or-flight reactions cause activation of (a) the parathyroid glands, leading to increased metabolic rate (b) the kidney, leading to suppression of renin- angiotensin-aldosterone pathway (c) ... epinephrine and norepinephrine (d) the pancreas leading to a reduction in the blood sugar levels.

Last Answer : (c) the adrenal medulla, leading to increased secretion of epinephrine and norepinephrine

Bradykinin and angiotensin II have the following feature common to both: A. They both cause fall in BP B. They both are degraded by Kininase II C. Their precursor proteins are plasma α2 globulins D. They both release aldosterone from adrenal cortex

Description : Bradykinin and angiotensin II have the following feature common to both: A. They both cause fall in BP B. They both are degraded by Kininase II C. Their precursor proteins are plasma α2 globulins D. They both release aldosterone from adrenal cortex

Last Answer : C. Their precursor proteins are plasma α2 globulins

Beneficial effects of β-adrenoceptor blockers in CHF include the following except: A. Antagonism of ventricular wall stress enhancing action of sympathetic overactivity B. Antagonism of vasoconstriction due to sympathetic overactivity C. Prevention of pathological remodeling of ventricular myocardium D. Prevention of dangerous cardiac arrhythmias

Description : Beneficial effects of β-adrenoceptor blockers in CHF include the following except: A. Antagonism of ventricular wall stress enhancing action of sympathetic overactivity B. Antagonism ... Prevention of pathological remodeling of ventricular myocardium D. Prevention of dangerous cardiac arrhythmias

Last Answer : B. Antagonism of vasoconstriction due to sympathetic overactivity

Which of the following vasoactive drugs used in treating shock results in reduced preload and afterload, reducing oxygen demand of the heart? a) Nitroprusside (Nipride) A disadvantage of nitroprusside is that it causes hypotension. b) Dopamine (Intropin) Dopamine improves contractility, increases stroke volume, and increases cardiac output. c) Epinephrine (adrenaline) Epinephrine improves contractility, increases stroke volume, and increases cardiac output. d) Methoxamine (Vasoxyl) Methoxamine increases blood pressure by vasoconstriction.

Description : Which of the following vasoactive drugs used in treating shock results in reduced preload and afterload, reducing oxygen demand of the heart? a) Nitroprusside (Nipride) A disadvantage ... increases cardiac output. d) Methoxamine (Vasoxyl) Methoxamine increases blood pressure by vasoconstriction.

Last Answer : a) Nitroprusside (Nipride) A disadvantage of nitroprusside is that it causes hypotension.

Epinephrine is synthesised in (A) Chromaffin cells of adrenal medulla (B) Sympathetic ganglia (C) Brain (D) All of these

Description : Epinephrine is synthesised in (A) Chromaffin cells of adrenal medulla (B) Sympathetic ganglia (C) Brain (D) All of these

Last Answer : Answer : D

Which endocrine organ acts like the postganglionic neurons of the sympathetic nervous system? A) thyroid gland B) thymus gland C) adrenal cortex D) adrenal medulla E) islets of Langerhans of the pancreas

Description : Which endocrine organ acts like the postganglionic neurons of the sympathetic nervous system? A) thyroid gland B) thymus gland C) adrenal cortex D) adrenal medulla E) islets of Langerhans of the pancreas

Last Answer : D) adrenal medulla

A fall in glomerular filtration rate (GFR) activates (a) juxtaglomerular cells to release renin (b) adrenal cortex to release aldosterone (c) adrenal medulla to release adrenaline (d) posterior pituitary to release vasopressin.

Description : A fall in glomerular filtration rate (GFR) activates (a) juxtaglomerular cells to release renin (b) adrenal cortex to release aldosterone (c) adrenal medulla to release adrenaline (d) posterior pituitary to release vasopressin.

Last Answer : (a) juxtaglomerular cells to release renin

The most likely mechanism of antihypertensive action of thiazide diuretics in the long-term is: A. Reduction of circulating blood volume B. Reduction in cardiac output C. Decreased sympathetic tone D. Reduction in total peripheral vascular resistance and improved compliance of resistance vessels

Description : The most likely mechanism of antihypertensive action of thiazide diuretics in the long-term is: A. Reduction of circulating blood volume B. Reduction in cardiac output C. Decreased sympathetic tone D. Reduction in total peripheral vascular resistance and improved compliance of resistance vessels

Last Answer : D. Reduction in total peripheral vascular resistance and improved compliance of resistance vessels

Adrenergic neurone blocking drugs: A. Block the action of adrenaline on neuronal α2 adrenoceptors B. Block both α and β adrenoceptor mediated effects of injected adrenaline C. Do not block any effect of injected adrenaline D. Do not block the effects of sympathetic nerve

Description : Adrenergic neurone blocking drugs: A. Block the action of adrenaline on neuronal α2 adrenoceptors B. Block both α and β adrenoceptor mediated effects of injected adrenaline C. Do not block any effect of injected adrenaline D. Do not block the effects of sympathetic nerve

Last Answer : C. Do not block any effect of injected adrenaline

Adrenergic neurone blocking drugs: A. Block the action of adrenaline on neuronal α2 adrenoceptors B. Block both α and β adrenoceptor mediated effects of injected adrenaline C. Do not block any effect of injected adrenaline D. Do not block the effects of sympathetic nerve stimulation

Description : Adrenergic neurone blocking drugs: A. Block the action of adrenaline on neuronal α2 adrenoceptors B. Block both α and β adrenoceptor mediated effects of injected adrenaline C. Do not block any effect of injected adrenaline D. Do not block the effects of sympathetic nerve stimulation

Last Answer : C. Do not block any effect of injected adrenaline

Methyldopa lowers BP by: A. Inhibiting dopa decarboxylase in adrenergic nerve endings B. Generating α-methyl noradrenaline in brain which reduces sympathetic tone C. Generating α-methyl noradrenaline which acts as a false transmitter in peripheral adrenergic nerve endings D. Activating vascular dopamine receptors

Description : Methyldopa lowers BP by: A. Inhibiting dopa decarboxylase in adrenergic nerve endings B. Generating α-methyl noradrenaline in brain which reduces sympathetic tone C. Generating α-methyl ... as a false transmitter in peripheral adrenergic nerve endings D. Activating vascular dopamine receptors

Last Answer : B. Generating α-methyl noradrenaline in brain which reduces sympathetic tone

The following factor is not involved in the causation of hypotension due to spinal anaesthesia: A. Histamine release B. Reduced sympathetic vasoconstrictor tone C. Decreased venous return from the lower limbs D. Bradycardia

Description : The following factor is not involved in the causation of hypotension due to spinal anaesthesia: A. Histamine release B. Reduced sympathetic vasoconstrictor tone C. Decreased venous return from the lower limbs D. Bradycardia

Last Answer : A. Histamine release

Agents that often cause vasoconstriction include all of the following except (a) Angiotensin II (b) Methysergide (c) PGF2a (d) Prostacyclin (e) Thromboxane

Description : Agents that often cause vasoconstriction include all of the following except (a) Angiotensin II (b) Methysergide (c) PGF2a (d) Prostacyclin (e) Thromboxane

Last Answer : Ans: D

Following acute haemorrhage, the following compensatory mechanisms occur: a. increased chemoreceptor discharge b. increased level of circulating angiotensin II c. vasoconstriction of renal efferent arterioles d. all above

Description : Following acute haemorrhage, the following compensatory mechanisms occur: a. increased chemoreceptor discharge b. increased level of circulating angiotensin II c. vasoconstriction of renal efferent arterioles d. all above

Last Answer : all above

Morphine induced fall in blood pressure involves the following factors except: A. Direct cardiac depression B. Direct reduction of vascular tone C. Vasomotor centre depression D. Histamine release

Description : Morphine induced fall in blood pressure involves the following factors except: A. Direct cardiac depression B. Direct reduction of vascular tone C. Vasomotor centre depression D. Histamine release

Last Answer : A. Direct cardiac depression

All of the following contribute to the antihypertensive action of propranolol except: A. Direct vasodilatation B. Decreased renin release from kidney C. Adaptation of blood vessels to reduced cardiac output D. Less noradrenaline release from sympathetic nerve endings

Description : All of the following contribute to the antihypertensive action of propranolol except: A. Direct vasodilatation B. Decreased renin release from kidney C. Adaptation of blood vessels to reduced cardiac output D. Less noradrenaline release from sympathetic nerve endings

Last Answer : A. Direct vasodilatation

All of the following contribute to the antihypertensive action of propranolol except: A. Direct vasodilatation B. Decreased renin release from kidney C. Adaptation of blood vessels to reduced cardiac output D. Less noradrenaline release from sympathetic nerve endings

Description : All of the following contribute to the antihypertensive action of propranolol except: A. Direct vasodilatation B. Decreased renin release from kidney C. Adaptation of blood vessels to reduced cardiac output D. Less noradrenaline release from sympathetic nerve endings

Last Answer : A. Direct vasodilatation

Select the nonapeptide which can be generated from plasma globulin by snake venom enzymes, causes fall in BP and intense pain when applied to blister base: A. Kallidin B. Bradykinin C. Angiotensin II D. Angiotensin III

Description : Select the nonapeptide which can be generated from plasma globulin by snake venom enzymes, causes fall in BP and intense pain when applied to blister base: A. Kallidin B. Bradykinin C. Angiotensin II D. Angiotensin III

Last Answer : B. Bradykinin

The following are true about aldosterone: a. it is secreted by the adrenal medulla b. its secretion is stimulated by decreased blood volume c. it stimulates active reabsorption of sodium in the distal renal tubules. d. it causes increased secretion of potassium by the distal renal tubules.

Description : The following are true about aldosterone: a. it is secreted by the adrenal medulla b. its secretion is stimulated by decreased blood volume c. it stimulates active reabsorption of sodium in the distal renal tubules. d. it causes increased secretion of potassium by the distal renal tubules.

Last Answer : it causes increased secretion of potassium by the distal renal tubules.

The action of histamine that is not mediated through H1 receptors is: A. Release of EDRF from vascular endothelium resulting in vasodilatation B. Direct action on vascular smooth muscle causing vasodilatation C. Bronchoconstriction D. Release of catecholamines from adrenal medulla

Description : The action of histamine that is not mediated through H1 receptors is: A. Release of EDRF from vascular endothelium resulting in vasodilatation B. Direct action on vascular smooth muscle causing vasodilatation C. Bronchoconstriction D. Release of catecholamines from adrenal medulla

Last Answer : B. Direct action on vascular smooth muscle causing vasodilatation

The action of histamine that is not mediated through H1 receptors is: A. Release of EDRF from vascular endothelium resulting in vasodilatation B. Direct action on vascular smooth muscle causing vasodilatation C. Bronchoconstriction D. Release of catecholamines from adrenal medulla

Description : The action of histamine that is not mediated through H1 receptors is: A. Release of EDRF from vascular endothelium resulting in vasodilatation B. Direct action on vascular smooth muscle causing vasodilatation C. Bronchoconstriction D. Release of catecholamines from adrenal medulla

Last Answer : B. Direct action on vascular smooth muscle causing vasodilatation

Long-term thiazide therapy can cause hyperglycaemia by: A. Reducing insulin release B. Interfering with glucose utilization in tissues C. Increasing sympathetic activity D. Increasing corticosteroid secretion

Description : Long-term thiazide therapy can cause hyperglycaemia by: A. Reducing insulin release B. Interfering with glucose utilization in tissues C. Increasing sympathetic activity D. Increasing corticosteroid secretion

Last Answer : A. Reducing insulin release

Raised plasma aldosterone level in CHF contributes to disease progression by exerting the following effects except: A. Fibrotic remodeling of myocardium B. Hyperkalemia and hypermagnesemia C. Increasing cardiac preload by Na+ and water retention D. Enhancing cardiotoxicity of sympathetic overactivity

Description : Raised plasma aldosterone level in CHF contributes to disease progression by exerting the following effects except: A. Fibrotic remodeling of myocardium B. Hyperkalemia and hypermagnesemia C. ... cardiac preload by Na+ and water retention D. Enhancing cardiotoxicity of sympathetic overactivity

Last Answer : B. Hyperkalemia and hypermagnesemia

The most prominent and dose related side effect of salbutamol is: A. Rise in blood pressure B. Muscle tremor C. Hyperglycaemia D. Central nervous system stimulation

Description : The most prominent and dose related side effect of salbutamol is: A. Rise in blood pressure B. Muscle tremor C. Hyperglycaemia D. Central nervous system stimulation

Last Answer : B. Muscle tremor

The following factors enhance renin release from the kidney except: A. Fall in blood pressure B. Reduction in blood volume C. Enhanced sympathetic activity D. Volume overload

Description : The following factors enhance renin release from the kidney except: A. Fall in blood pressure B. Reduction in blood volume C. Enhanced sympathetic activity D. Volume overload

Last Answer : D. Volume overload

Mechanism by which adrenaline can prolong the duration of local anesthesia a) Decreased permeability of the vascular endothelium b) Precipitation of lidocaine c) Changing the pH of the solution d) Local Vasoconstriction

Description : Mechanism by which adrenaline can prolong the duration of local anesthesia a) Decreased permeability of the vascular endothelium b) Precipitation of lidocaine c) Changing the pH of the solution d) Local Vasoconstriction

Last Answer : d) Local Vasoconstriction 

Select the drug(s) which afford(s) relief in gastroesophageal reflux by increasing lower esophageal sphincter tone and promoting gastric emptying, but without affecting acidity of gastric contents: A. Sodium alginate B. Metoclopramide C. Cisapride D. Both ‘B’ and ‘C

Description : Select the drug(s) which afford(s) relief in gastroesophageal reflux by increasing lower esophageal sphincter tone and promoting gastric emptying, but without affecting acidity of gastric contents: A. Sodium alginate B. Metoclopramide C. Cisapride D. Both ‘B’ and ‘C

Last Answer : D. Both ‘B’ and ‘C’

Pilocarpine reduces intraocular tension in open angle glaucoma by: A. Contracting sphincter pupillae B. Increasing tone of ciliary muscle C. Reducing aqueous formation D. Enhancing uveo-scleral outflow

Description : Pilocarpine reduces intraocular tension in open angle glaucoma by: A. Contracting sphincter pupillae B. Increasing tone of ciliary muscle C. Reducing aqueous formation D. Enhancing uveo-scleral outflow

Last Answer : B. Increasing tone of ciliary muscle

Enalapril differs from captopril in that: A. It blocks angiotensin II receptors B. It does not produce cough as a side effect C. It is less liable to cause abrupt first dose hypotension D. It has a shorter duration of action

Description : Enalapril differs from captopril in that: A. It blocks angiotensin II receptors B. It does not produce cough as a side effect C. It is less liable to cause abrupt first dose hypotension D. It has a shorter duration of action

Last Answer : C. It is less liable to cause abrupt first dose hypotension

Captopril pretreatment: A. Inhibits the pressor action of angiotensin I B. Inhibits the pressor action of angiotensin II C. Potentiates the depressor action of bradykinin D. Both ‘A’ and ‘C’ are correct

Description : Captopril pretreatment: A. Inhibits the pressor action of angiotensin I B. Inhibits the pressor action of angiotensin II C. Potentiates the depressor action of bradykinin D. Both ‘A’ and ‘C’ are correct

Last Answer : D. Both ‘A’ and ‘C’ are correct

Ventricular remodeling after myocardial infarction involves the mediation of: A. Angiotensin II B. Prostaglandin C. Bradykinin D. Thromboxane A2

Description : Ventricular remodeling after myocardial infarction involves the mediation of: A. Angiotensin II B. Prostaglandin C. Bradykinin D. Thromboxane A2

Last Answer : A. Angiotensin II

Angiotensin II plays a key role in the following risk factor for ischaemic heart disease: A. Hypercholesterolemia B. Ventricular hypertrophy C. Carbohydrate intolerance D. Cardiac arrhythmia

Description : Angiotensin II plays a key role in the following risk factor for ischaemic heart disease: A. Hypercholesterolemia B. Ventricular hypertrophy C. Carbohydrate intolerance D. Cardiac arrhythmia

Last Answer : B. Ventricular hypertrophy

Under physiological conditions the rate limiting enzyme in the generation of angiotensin II is: A. Renin B. Angiotensin converting enzyme C. Aminopeptidase D. Angiotensinase

Description : Under physiological conditions the rate limiting enzyme in the generation of angiotensin II is: A. Renin B. Angiotensin converting enzyme C. Aminopeptidase D. Angiotensinase

Last Answer : A. Renin

There are no preformed stores of the following autacoid/autacoids: A. Prostaglandins B. Leukotrienes C. Angiotensin II D. All of the above

Description : There are no preformed stores of the following autacoid/autacoids: A. Prostaglandins B. Leukotrienes C. Angiotensin II D. All of the above

Last Answer : D. All of the above

Which of the following hormones is NOT correctly matched with its description? A) thymosin--aids in production of T cells B) thyroxin--needed for growth and development in vertebrates C) parathyroid hormone--increases level of calcium ions in blood D) cortisol--lowers blood glucose level by removing glucose into tissues E) epinephrine--released by the adrenal medulla under stressful conditions

Description : Which of the following hormones is NOT correctly matched with its description? A) thymosin--aids in production of T cells B) thyroxin--needed for growth and development in vertebrates ... by removing glucose into tissues E) epinephrine--released by the adrenal medulla under stressful conditions

Last Answer : D) cortisol--lowers blood glucose level by removing glucose into tissues E) epinephrine--released by the adrenal medulla under stressful conditions

Angiotensin converting enzyme inhibitors reduce the following haemodynamic parameters in congestive heart failure except: A. Systemic vascular resistance B. Right atrial pressure C. Cardiac output D. Heart rate × pressure product

Description : Angiotensin converting enzyme inhibitors reduce the following haemodynamic parameters in congestive heart failure except: A. Systemic vascular resistance B. Right atrial pressure C. Cardiac output D. Heart rate × pressure product

Last Answer : C. Cardiac output

Advantages of angiotensin converting enzyme inhibitors as antihypertensive include the following except: A. They tend to reverse left ventricular hypertrophy B. Their efficacy is not reduced by nonsteroidal antiinflammatory drugs C. They do not worsen blood lipid profile D. They do not impair work performance

Description : Advantages of angiotensin converting enzyme inhibitors as antihypertensive include the following except: A. They tend to reverse left ventricular hypertrophy B. Their efficacy is not reduced by nonsteroidal ... . They do not worsen blood lipid profile D. They do not impair work performance

Last Answer : B. Their efficacy is not reduced by nonsteroidal antiinflammatory drugs

Oxygen blood supply to the heart depends on: a. blood acidity b. sympathetic tone c. blood viscosity d. al

Description : Oxygen blood supply to the heart depends on: a. blood acidity b. sympathetic tone c. blood viscosity d. al

Last Answer : all

Which of the following structures or regions is incorrectly paired with its functions? (a) Medulla : Controls respiration oblongata and cardiovascular reflexes (b) Limbic : Consists of fibre tracts system that interconnect different regions of brain controls movement (c) Hypothalamus : Production of releasing hormones and regulation of temperature, hunger and thirst (d) Corpus callosum : Band of fibers connecting left and right cerebral hemispheres

Description : Which of the following structures or regions is incorrectly paired with its functions? (a) Medulla : Controls respiration oblongata and cardiovascular reflexes (b) Limbic : Consists of fibre tracts ... thirst (d) Corpus callosum : Band of fibers connecting left and right cerebral hemispheres

Last Answer : (b) Limbic : Consists of fibre tracts system that interconnect different regions of brain controls movement

Which of the following structures or regions is incorrectly paired with its function ? (1) Medulla oblongata : controls respiration and cardiovascular reflexes. (2) Limbic system : consists of fibre tracts that interconnect different regions of brain; controls movement. (3) Hypothalamus : production of releasing hormones and regulation of temperature, hunger and thirst. (4) Corpus callosum : band of fibers connecting left and right cerebral hemispheres.

Description : Which of the following structures or regions is incorrectly paired with its function ? (1) Medulla oblongata : controls respiration and cardiovascular reflexes. (2) Limbic system : consists of fibre ... and thirst. (4) Corpus callosum : band of fibers connecting left and right cerebral hemispheres.

Last Answer : (2) Limbic system : consists of fibre tracts that interconnect different regions of brain; controls movement.

Isoxsuprine increases limb blood flow in normal individuals, but is of limited efficacy in Buerger’s disease, because in this disease: A. Vasodilator β adrenoceptors are deficient B. There is loss of sympathetic innervation C. Blood flow to the affected limb is reduced by organic obstruction D. The drug is not delivered to the affected site

Description : Isoxsuprine increases limb blood flow in normal individuals, but is of limited efficacy in Buerger's disease, because in this disease: A. Vasodilator β adrenoceptors are deficient B. There is loss ... affected limb is reduced by organic obstruction D. The drug is not delivered to the affected site

Last Answer : C. Blood flow to the affected limb is reduced by organic obstruction

Isoxsuprine increases limb blood flow in normal individuals, but is of limited efficacy in Buerger’s disease, because in this disease: A. Vasodilator β adrenoceptors are deficient B. There is loss of sympathetic innervation C. Blood flow to the affected limb is reduced by organic obstruction D. The drug is not delivered to the affected site

Description : Isoxsuprine increases limb blood flow in normal individuals, but is of limited efficacy in Buerger's disease, because in this disease: A. Vasodilator β adrenoceptors are deficient B. There is loss ... affected limb is reduced by organic obstruction D. The drug is not delivered to the affected site

Last Answer : C. Blood flow to the affected limb is reduced by organic obstruction

True statements about the cerebral blood flow include: a. it is constant for the blood pressure in the range between 50-150mmHg b. the blood pressure is affected more by the PaO2 than PaCO2 c. hypocapnia causes vasoconstriction d. cerebral arterioles constricts when the blood pressure raises

Description : True statements about the cerebral blood flow include: a. it is constant for the blood pressure in the range between 50-150mmHg b. the blood pressure is affected more by the PaO2 than PaCO2 c. hypocapnia causes vasoconstriction d. cerebral arterioles constricts when the blood pressure raises

Last Answer : it is constant for the blood pressure in the range between 50-150mmHg