Description : Assertion `:` Neural signals through the sympathetic nerves can increase the rate of heart beat, the strength fo ventriculrar contraction and thereby
Last Answer : Assertion `:` Neural signals through the sympathetic nerves can increase the rate of heart beat, the ... D. If both Assertion & Reason are false.
Description : How do parasympathetic neural signals affect the working of the heart? (a) Reduce both heart rate and cardiac output. (b) Heart rate is increased without affecting the cardiac output. (c) Both heart rate and cardiac output increase. (d) Heart rate decreases but cardiac output increases.
Last Answer : (a) Reduce both heart rate and cardiac output.
Description : Which of the following increases the rate of heart beat? (1) Peripheral nerves (2) Sympathetic nerves (3) Parasympathetic nerves (4) Cranial nerves
Last Answer : (2) Sympathetic nerves Explanation: Heart rate is controlled by the two branches of the autonomic (involuntary) nervous system. The sympathetic nervous system (SNS) and the parasympathetic nervous ... parasympathetic nervous sys-tem (PNS) releases the hormone acetylcholine to slow the heart rate.
Last Answer : Sympathetic nerves
Description : Branch of PNS which transmit impulses from CNS to involuntary organ and classified into sympathetic & parasympathetic neural system is
Last Answer : Branch of PNS which transmit impulses from CNS to involuntary organ and classified into sympathetic & parasympathetic neural system is
Description : Part of PNS which transmit impulses from CNS to involuntary organ and classified into sympathetic & parasympathetic neural system is
Last Answer : Part of PNS which transmit impulses from CNS to involuntary organ and classified into sympathetic & parasympathetic neural system is
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.
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
Description : Nor-epinephrine (i) is released by sympathetic fibers (ii) is released by parasympathetic fibers (iii)increases the heart rate (iv) decreases blood pressure. Which of the above statements are correct? (a) (i) and (iii) (b) (ii) and (iii) (c) (ii) and (iv) (d) (i) and (iv)
Last Answer : (a) (i) and (iii)
Description : The sympathetic and parasympathetic systems exert functionally opposite influences on the following parameters except: A. Heart rate B. Atrial refractory period C. Pupil diameter D. Intestinal motility
Last Answer : B. Atrial refractory period
Description : Select the correct matching of a hormone, its source and function. Hormone Source Function (a) Vasopressin Posterior Increases loss pituitary of water through urine (b) Norepine- Adrenal ... (d) Prolactin Posterior Regulates growth pituitary of mammary glands and milk formation in females
Last Answer : (b) Norepine- Adrenal Increases heart phrine medulla beat, rate of respiration and alterness
Description : If parasympathetic nerve of the rabbit is cut then heart beat
Last Answer : If parasympathetic nerve of the rabbit is cut then heart beat A. Unaffected B. Decreases C. Increases D. Stop
Description : One function of parasympathetic nervous system is (a) contraction of hair muscles (b) stimulation of sweat glands (c) acceleration of heart beat (d) constriction of pupil.
Last Answer : (d) constriction of pupil.
Description : How the sympathetic and parasympathetic operate antagonistic?
Last Answer : What is the answer ?
Description : In male sex organs _______ system is responsible for erection. (a) Sympathetic (b) Parasympathetic (c) Norepinephrine (d) None of the above
Last Answer : Ans: B
Description : The following are true about the autonomic nervous system: a. the postganglionic neurones are largely unmyelinated b. all preganglionic neurones are cholinergic c. the preganglionic neurones of ... parasympathetic nervous system d. the parasympathetic outflow is only found in the cranial nerves
Last Answer : the postganglionic neurones are largely unmyelinated
Description : With regard to the autonomic nervous system: a. the dorsal root ganglia is made up mainly of the cell bodies of the sympathetic nerves b. the preganglionic sympathetic fibres ... the ganglia of both sympathetic and parasympathetic nervous system d. botulin toxin blocks acetylcholine receptors
Last Answer : the dorsal root ganglia is made up mainly of the cell bodies of the sympathetic nerves
Description : The ciliary ganglion: a. is found between the optic nerve and the medial rectus b. contains sympathetic nerve that supplies the sphincter pupillae c. is a parasympathetic relay ganglion for fibers from ... nucleus d. contains sensory nerve e. has a motor nerve that goes to the inferior oblique
Last Answer : is a parasympathetic relay ganglion for fibers from the Edinger-Westphal nucleus
Description : Most organ of the body receive innervations a. sympathetic b. parasympathetic c. both d. non
Last Answer : both
Description : Which of the following are sympathetic effects of the nervous system? a) Dilated pupils Dilated pupils are a sympathetic effect of the nervous system. Constricted pupils are a ... Decreased respiratory rate is a parasympathetic effect. Increased respiratory rate is a sympathetic effect.
Last Answer : a) Dilated pupils Dilated pupils are a sympathetic effect of the nervous system. Constricted pupils are a parasympathetic effect.
Description : Release of gastro-intestinal secretion and movement of food is brought about by (a) Sympathetic nervous system (b) Parasympathetic nervous system (c) Central nervous system (d) Thyroid nervous membrane
Last Answer : (b) Parasympathetic nervous system
Description : Which controls reflex action? Options: A) Sympathetic nervous system B) Central nervous system C) Parasympathetic nervous system D) Sensory nerves
Last Answer : C) Parasympathetic nervous system
Description : Sympathetic nervous system induces (a) secretion of digestive juices (b) heart beat (c) secretion of saliva (d) all of these.
Last Answer : (b) heart beat
Description : Acetylcholine is a neurotransmitter at: a. sweat glands b. the adrenal medulla c. parasympathetic ganglia d. all above
Last Answer : all above
Description : The major postjunctional cholinergic receptor is of the muscarinic type at the following site: A. Postganglionic parasympathetic B. Adrenal medulla C. Autonomic ganglia D. Neuromuscular junction
Last Answer : A. Postganglionic parasympathetic
Description : How do parasympathertic neural signals affect the working the heart
Last Answer : How do parasympathertic neural signals affect the working the heart A. Reduce both heart rate ... . Heart rate decrease but cardiac output increases.
Description : Shortacting nifedipine formulation is not recommended now for treatment of hypertension because: A. It tends to increase heart rate and cardiac work B. It invokes pronounced reflex sympathetic discharges C. It can impair haemodynamics in patients with diastolic dysfunction D. All of the above
Last Answer : D. All of the above
Description : Epinephrine is synthesised in (A) Chromaffin cells of adrenal medulla (B) Sympathetic ganglia (C) Brain (D) All of these
Last Answer : Answer : D
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
Description : 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
Description : Which one of the following is the correct statement for respiration in humans? (a) Cigarette smoking may lead to inflammation of bronchi. (b) Neural signals from pneumotoxic centre in pons region ... . (d) About 90% of carbon dioxide (CO2) is carried by haemoglobin as carbamino-haemoglobin.
Last Answer : (c) Workers in grinding and stone-breaking industries may suffer from lung fibrosis.
Description : Which one of the following is the correct statement for respiration in humans ? (1) About 90% of carbon dioxide (CO2 ) is carried by haemoglobin as carbamino-haemoglobin (2) Cigarette smoking ... of inspiration (4) Workers in grinding and stone-breaking industries may suffer, from lung fibrosis.
Last Answer : (4) Workers in grinding and stone-breaking industries may suffer, from lung fibrosis.
Description : Hormone connected with increase rate if gluconeogenesis, blood pressure and heart beat is
Last Answer : Hormone connected with increase rate if gluconeogenesis, blood pressure and heart beat is A. Insulin B. Glucagon C. Adrenaline D. FSH
Description : Antidiuretic hormone (ADH) - (1) inhibits the secretion of growth hormone by the pituitary (2) inhibits the rate of heart beat (3) causes the muscular walls of the arterioles to contract that simulates the reabsorption of water from the kidney tubules (4) causes an increase in the blood pressure
Last Answer : (3) causes the muscular walls of the arterioles to contract that simulates the reabsorption of water from the kidney tubules
Description : Full activation of the sympathetic nervous system, as in maximal exercise, can produce all of the following responses except (a) Bronchial relaxation (b) Decreases intestinal motility (c) Increased renal blood flow (d) Mydriasis (e) Increased heart rate (tachycardia)
Last Answer : Ans: C
Description : Assertion `:-` Analysis of urine helps in clinical diagnosis of many metabolic disorder. ltbr. Reason `:-` Glycosuria is indicative of disabetes insip
Last Answer : Assertion `:-` Analysis of urine helps in clinical diagnosis of many metabolic disorder. ltbr. Reason `: ... D. If both Assertion & Reason are false.
Description : Assertion :- Oxidation number of `Ni` in `[Ni(CO)_(4)]` is zero. ltbr. Reason :- Nickel is bonded to neutral ligand, carbonyl.
Last Answer : Assertion :- Oxidation number of `Ni` in `[Ni(CO)_(4)]` is zero. ltbr. Reason :- Nickel is ... is False. D. If both Assertion & Reason are False.
Description : In the reaction sequence `underset(350^(@))overset(NaOH)rarr A overset(CH_(3)I)rarr B overset(HI)rarr C+D` ltbr. A, B, C, and D are given by the set :
Last Answer : In the reaction sequence `underset(350^(@))overset(NaOH)rarr A overset(CH_(3)I)rarr B overset(HI)rarr C+D` ltbr ... , `C_(6)H_(5)l, C_(2)H_(5)OH`
Description : Match the following columns ltbr.
Last Answer : Match the following columns ltbr.
Description : What structures through the tactile stimuli and travels after being converted into neural signals?
Last Answer : Need answer
Description : In the autonomic regulation of blood pressure (a) Cardiac output is maintained constant at the expense of other hemodynamic variables (b) Elevation of blood pressure results in elevated ... the sensitivity of the sensory baroreceptor nerve endings might cause an increase in sympathetic discharge
Last Answer : Ans: D
Description : Mark the second messenger in case of heart in response to parasympathetic nervous system.
Last Answer : Mark the second messenger in case of heart in response to parasympathetic nervous system. A. cAMP B. cGMP C. `IP_3` D. `DG`
Description : Which of the following is an INCORRECT statement about the parasympathetic system? a) It increases digestive action. b) It is the fight or flight system. c) slows breathing rate d) establishes resting state
Last Answer : ANSWER: B -- IT IS THE FIGHT OR FLIGHT SYSTEM.
Description : Oxygen blood supply to the heart depends on: a. blood acidity b. sympathetic tone c. blood viscosity d. al
Last Answer : all
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
Description : The basis for use of β-adrenergic blockers in congestive heart failure (CHF) is: A. They exert positive inotropic effect in CHF B. They counteract deleterious effect of sympathetic overactivity on the myocardium C. They exert antiischaemic effect on the heart D. They prevent cardiac arrhythmias
Last Answer : B. They counteract deleterious effect of sympathetic overactivity on the myocardium