Select the tissue that is most sensitive to oxytocin: A. Myometrium B. Myoepithelium of mammary alveoli C. Vascular smooth muscle D. Renal collecting ducts

Select the tissue that is most sensitive to oxytocin:
A. Myometrium
B. Myoepithelium of mammary alveoli
C. Vascular smooth muscle
D. Renal collecting ducts
by

1 Answer

Answer :

B. Myoepithelium of mammary alveoli
by

Related questions

Actions of oxytocin include the following except: A. Vasoconstriction B. Increased water reabsorption in renal collecting ducts C. Contraction of mammary myoepithelium D. Release of prostaglandins from endometrium

Description : Actions of oxytocin include the following except: A. Vasoconstriction B. Increased water reabsorption in renal collecting ducts C. Contraction of mammary myoepithelium D. Release of prostaglandins from endometrium

Last Answer : A. Vasoconstriction

The following tissue is most sensitive to vasopressin: A. Renal collecting ducts B. Intestinal smooth muscle C. Vascular smooth muscle D. Uterus

Description : The following tissue is most sensitive to vasopressin: A. Renal collecting ducts B. Intestinal smooth muscle C. Vascular smooth muscle D. Uterus

Last Answer : A. Renal collecting ducts

Select the action of vasopressin exerted through the V1 subtype receptors: A. Release of coagulation factor VIII and von Willebrands factor from vascular endothelium B. Increased peristalsis of gut C. Dilatation of blood vessels D. Increased water permeability of renal collecting ducts

Description : Select the action of vasopressin exerted through the V1 subtype receptors: A. Release of coagulation factor VIII and von Willebrands factor from vascular endothelium B. Increased peristalsis of gut C. Dilatation of blood vessels D. Increased water permeability of renal collecting ducts

Last Answer : B. Increased peristalsis of gut

Aldosterone increases Na+ reabsorption and K+ excretion in the renal collecting duct cells by: A. Inducing synthesis of Na+K+ATPase B. Inducing synthesis of amiloride sensitive Na+ channels C. Translocating Na+ channels from cytosolic site to luminal membrane D. All of the above

Description : Aldosterone increases Na+ reabsorption and K+ excretion in the renal collecting duct cells by: A. Inducing synthesis of Na+K+ATPase B. Inducing synthesis of amiloride sensitive Na+ channels C. Translocating Na+ channels from cytosolic site to luminal membrane D. All of the above

Last Answer : D. All of the above

Which one of the following is not a part of a renal pyramid? (a) Peritubular capillaries (b) Convoluted tubules (c) Collecting ducts (d) Loop of Henle

Description : Which one of the following is not a part of a renal pyramid? (a) Peritubular capillaries (b) Convoluted tubules (c) Collecting ducts (d) Loop of Henle

Last Answer : (b) Convoluted tubules

The following vasodilator(s) act(s) by opening K+ channels in the vascular smooth muscle: A. Dipyridamole B. Minoxidil C. Diazoxide D. Both ‘B’ and ‘C’

Description : The following vasodilator(s) act(s) by opening K+ channels in the vascular smooth muscle: A. Dipyridamole B. Minoxidil C. Diazoxide D. Both ‘B’ and ‘C’

Last Answer : D. Both ‘B’ and ‘C

Organic nitrates relax vascular smooth muscle by: A. Increasing intracellular cyclic GMP B. Increasing intracellular cyclic AMP C. Decreasing intracellular cyclic AMP D. Both ‘A’ and ‘C’ are correct

Description : Organic nitrates relax vascular smooth muscle by: A. Increasing intracellular cyclic GMP B. Increasing intracellular cyclic AMP C. Decreasing intracellular cyclic AMP D. Both ‘A’ and ‘C’ are correct

Last Answer : A. Increasing intracellular cyclic GMP

Choose the correct statement about drotaverine: A. It is a smooth muscle antispasmodic acting by non-anticholinergic mechanisms B. It is a papaverine congener used in peripheral vascular diseases C. It is a synthetic atropine substitute used to control diarrhoea D. It is a M1/M3 selective antagonist used for spastic constipation

Description : Choose the correct statement about drotaverine: A. It is a smooth muscle antispasmodic acting by non-anticholinergic mechanisms B. It is a papaverine congener used in peripheral vascular diseases C. It ... used to control diarrhoea D. It is a M1/M3 selective antagonist used for spastic constipation

Last Answer : A. It is a smooth muscle antispasmodic acting by non-anticholinergic mechanisms

Choose the correct statement about osmotic diuretics: A. They are large molecular weight substances which form colloidal solution B. Their primary site of action is collecting ducts in the kidney C. They increase water excretion without increasing salt excretion D. They can lower intraocular pressure

Description : Choose the correct statement about osmotic diuretics: A. They are large molecular weight substances which form colloidal solution B. Their primary site of action is collecting ducts in the ... C. They increase water excretion without increasing salt excretion D. They can lower intraocular pressure

Last Answer : D. They can lower intraocular pressure

The following diuretic acts on the luminal membrane of distal tubule and collecting ducts to inhibit electrogenic Na+ reabsorption so that K+ excretion is diminished and bicarbonate excretion is enhanced: A. Xipamide B. Isosorbide C. Triamterene D. Spironolactone

Description : The following diuretic acts on the luminal membrane of distal tubule and collecting ducts to inhibit electrogenic Na+ reabsorption so that K+ excretion is diminished and bicarbonate excretion is enhanced: A. Xipamide B. Isosorbide C. Triamterene D. Spironolactone

Last Answer : C. Triamterene

Amiloride inhibits K+ excretion in the distal tubules and collecting ducts by blocking: A. Electrogenic K+ channels B. Electrogenic Na+ channels C. Nonelectrogenic Na+-Cl– symport D. H+K+ATPase

Description : Amiloride inhibits K+ excretion in the distal tubules and collecting ducts by blocking: A. Electrogenic K+ channels B. Electrogenic Na+ channels C. Nonelectrogenic Na+-Cl– symport D. H+K+ATPase

Last Answer : B. Electrogenic Na+ channels

The primary site of action of thiazide diuretics is: A. Proximal tubule B. Ascending limb of loop of Henle C. Cortical diluting segment D. Collecting ducts

Description : The primary site of action of thiazide diuretics is: A. Proximal tubule B. Ascending limb of loop of Henle C. Cortical diluting segment D. Collecting ducts

Last Answer : C. Cortical diluting segment

Secretion of K+ in the late distal tubule and collecting ducts of kidney depends on: A. Intracellular K+ content B. Unabsorbed Na+ load presented to the distal segment C. Aldosterone level D. All of the above

Description : Secretion of K+ in the late distal tubule and collecting ducts of kidney depends on: A. Intracellular K+ content B. Unabsorbed Na+ load presented to the distal segment C. Aldosterone level D. All of the above

Last Answer : D. All of the above

The early pregnancy uterus is sensitive to the following oxytocic: A. Oxytocin B. Methylergometrine C. Prostaglandin F2α D. Both ‘A’ and ‘B’ are correct

Description : The early pregnancy uterus is sensitive to the following oxytocic: A. Oxytocin B. Methylergometrine C. Prostaglandin F2α D. Both ‘A’ and ‘B’ are correct

Last Answer : C. Prostaglandin F2α

When the female patient demonstrates thickening, scaling, and erosion of the nipple and areola, the nurse recognizes that the patient is exhibiting signs of a) Paget’s disease. Paget’s disease is a malignancy of mammary ducts with early signs of erythema of nipple and areola. b) acute mastitis. Acute mastitis is demonstrated by nipple cracks or abrasions along with reddened and warm breast skin and tenderness.

Description : When the female patient demonstrates thickening, scaling, and erosion of the nipple and areola, the nurse recognizes that the patient is exhibiting signs of a) Paget's disease. Paget's disease ... the breast and demonstrates an orange peel apearance of breast skin with enlargement of skin pores.

Last Answer : a) Paget’s disease. Paget’s disease is a malignancy of mammary ducts with early signs of erythema of nipple and areola.

The figure shows a diagrammatic view of human respiratory system with labels A, B, C and D. Select the option which gives correct identification and main function and / or characteristic. (a) C - Alveoli - Thin walled vascular bag like structures for exchange of gases. (b) D - Lower end of lungs - Diaphragm pulls it down during inspiration. (c) A - Trachea - Long tube supported by complete cartilaginous rings for conducting inspired air. (d) B - Pleural membrane - Surround ribs on both sides to provide cushion against rubbing.

Description : The figure shows a diagrammatic view of human respiratory system with labels A, B, C and D. Select the option which gives correct identification and main function and / or characteristic. (a) C - ... air. (d) B - Pleural membrane - Surround ribs on both sides to provide cushion against rubbing.

Last Answer : (a) C - Alveoli - Thin walled vascular bag like structures for exchange of gases.

Blood flow in the following vascular bed generally decreases under the influence of glyceryl trinitrate: A. Coronary B. Cutaneous C. Renal D. Cranial

Description : Blood flow in the following vascular bed generally decreases under the influence of glyceryl trinitrate: A. Coronary B. Cutaneous C. Renal D. Cranial

Last Answer : C. Renal

Assertion : The mammary glands of the female starts producing milk just after the process of parturition . Reason : High level of oxytocin induces mil

Description : Assertion : The mammary glands of the female starts producing milk just after the process of parturition . Reason : High level of oxytocin induces mil

Last Answer : Assertion : The mammary glands of the female starts producing milk just after the process of parturition ... D. If both Assertion & Reason are False.

n human adult females oxytocin (a) stimulates pituitary to secrete vasopressin (b) causes strong uterine contractions during parturition (c) is secreted by anterior pituitary (d) stimulates growth of mammary glands.

Description : n human adult females oxytocin (a) stimulates pituitary to secrete vasopressin (b) causes strong uterine contractions during parturition (c) is secreted by anterior pituitary (d) stimulates growth of mammary glands.

Last Answer : (b) causes strong uterine contractions during parturition

Fetal ejection reflex in human female is induced by (a) release of oxytocin from pituitary (b) fully developed fetus and placenta (c) differentiation of mammary glands (d) pressure exerted by amniotic fluid.

Description : Fetal ejection reflex in human female is induced by (a) release of oxytocin from pituitary (b) fully developed fetus and placenta (c) differentiation of mammary glands (d) pressure exerted by amniotic fluid.

Last Answer : (b) fully developed fetus and placenta

Identify the hormone with its correct matching of source and function. (a) Oxytocin - posterior pituitary, growth and maintenance of mammary glands. (b) Melatonin - pineal gland, regulates the normal rhythm of sleepwake cycle. (c) Progesterone - corpus luteum, stimulation of growth and activities of female secondary sex organs. (d) Atrial natriuretic factor - ventricular wall, increases the blood pressure.

Description : Identify the hormone with its correct matching of source and function. (a) Oxytocin - posterior pituitary, growth and maintenance of mammary glands. (b) Melatonin - pineal gland, regulates the ... sex organs. (d) Atrial natriuretic factor - ventricular wall, increases the blood pressure.

Last Answer : (b) Melatonin - pineal gland, regulates the normal rhythm of sleepwake cycle

Which hormone will stimulate the release of milk from the mother's mammary glands when a baby is nursing? A) oxytocin B) prolactin C) ADH D) HGH E) epinephrine

Description : Which hormone will stimulate the release of milk from the mother's mammary glands when a baby is nursing? A) oxytocin B) prolactin C) ADH D) HGH E) epinephrine

Last Answer : A) oxytocin

Which is an example of negative feedback? A) Nursing action stimulates the hypothalamus to release oxytocin that triggers mammary gland milk production. B) When the blood becomes dilute, ADH is no longer released from the hypothalamus. C) Uterine stretching sends nerve impulses to the hypothalamus that releases oxytocin that triggers uterine contraction. D) FSH and LH stimulate the gonads to produce sperm or eggs. E) TRH stimulates the anterior pituitary to release thyroid-stimulating hormone.

Description : Which is an example of negative feedback? A) Nursing action stimulates the hypothalamus to release oxytocin that triggers mammary gland milk production. B) When the blood becomes dilute, ADH ... produce sperm or eggs. E) TRH stimulates the anterior pituitary to release thyroid-stimulating hormone.

Last Answer : B) When the blood becomes dilute, ADH is no longer released from the hypothalamus

Low doses of adrenaline dilate the following vascular bed (a) Cutaneous (b) Mucosal (c) Renal (d) Skeletal muscle

Description : Low doses of adrenaline dilate the following vascular bed (a) Cutaneous (b) Mucosal (c) Renal (d) Skeletal muscle

Last Answer : Ans: D

Low doses of adrenaline dilate the following vascular bed: A. Cutaneous B. Mucosal C. Renal D. Skeletal muscle

Description : Low doses of adrenaline dilate the following vascular bed: A. Cutaneous B. Mucosal C. Renal D. Skeletal muscle

Last Answer : D. Skeletal muscle

Low doses of adrenaline dilate the following vascular bed: A. Cutaneous B. Mucosal C. Renal D. Skeletal muscle

Description : Low doses of adrenaline dilate the following vascular bed: A. Cutaneous B. Mucosal C. Renal D. Skeletal muscle

Last Answer : D. Skeletal muscle

The opioid antidiarrhoeal drugs act by the following mechanism(s): A. They relax the intestinal smooth muscle B. They inhibit intestinal peristalsis C. They promote clearance of intestinal pathogens Aim4aiims.in D. All of the above

Description : The opioid antidiarrhoeal drugs act by the following mechanism(s): A. They relax the intestinal smooth muscle B. They inhibit intestinal peristalsis C. They promote clearance of intestinal pathogens Aim4aiims.in D. All of the above

Last Answer : B. They inhibit intestinal peristalsis

Organic nitrates have predominantly venodilator action because: A. They are selectively concentrated in veins B. Veins express larger quantities of enzymes that generate nitric oxide from nitrates C. Venous smooth muscle has greater capacity to relax D. All of the above are correct

Description : Organic nitrates have predominantly venodilator action because: A. They are selectively concentrated in veins B. Veins express larger quantities of enzymes that generate nitric oxide from nitrates C. Venous smooth muscle has greater capacity to relax D. All of the above are correct

Last Answer : B. Veins express larger quantities of enzymes that generate nitric oxide from nitrates

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

Organic nitrates relax vascular smooth muscle by (a) Increasing intracellular cyclic AMP (b) Increasing intracellular cyclic GMP (c) Decreasing intracellular cyclic AMP (d) Both (b) and (c)

Description : Organic nitrates relax vascular smooth muscle by (a) Increasing intracellular cyclic AMP (b) Increasing intracellular cyclic GMP (c) Decreasing intracellular cyclic AMP (d) Both (b) and (c)

Last Answer : Ans: B

Regarding verapamil, which one of the following statements is false? (a) Angina pectoris is an important indication for the use of verapamil (b) Contraindicated in the asthmatic patient (c) Relaxes vascular smooth muscle (d) Slows the depolarization phase of the action potential in AV nodal cells (e) Used in management of supraventricular tachycardias

Description : Regarding verapamil, which one of the following statements is false? (a) Angina pectoris is an important indication for the use of verapamil (b) Contraindicated in the asthmatic patient (c) ... phase of the action potential in AV nodal cells (e) Used in management of supraventricular tachycardias

Last Answer : Ans: B

Leukotrienes: 1) Are formed from the cyclooxygenase pathway 2) Are synthesized by fibroblasts 3) Decrease vascular permeability 4) Leukotriene D4 has been identified as SRS-A which causes bronchial wall smooth muscle relaxation 5) Stimulate mucus secretion

Description : Leukotrienes: 1) Are formed from the cyclooxygenase pathway 2) Are synthesized by fibroblasts 3) Decrease vascular permeability 4) Leukotriene D4 has been identified as SRS-A which causes bronchial wall smooth muscle relaxation 5) Stimulate mucus secretion

Last Answer : Answers-5 Leukotrienes are synthesized by leucocytes.They are mediators of allergic reaction. They increase vascular permeability and attract neutrophils and eosinophils to inflammatory sites. ... stimulate mucus production, an important consideration in the pathophysiology of bronchial asthma.

The following are true about potassium: a. hypokalaemia decreases the time of cardiac repolarization b. hyperkalaemia decreases cardiac contraction c. hyperkalaemia relaxes vascular smooth muscle d. all

Description : The following are true about potassium: a. hypokalaemia decreases the time of cardiac repolarization b. hyperkalaemia decreases cardiac contraction c. hyperkalaemia relaxes vascular smooth muscle d. all

Last Answer : all

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

Choose the correct statement about drotaverine: A. It is a smooth muscle antispasmodic acting by non-anticholinergic mechanisms B. It is a papaverine congener used in peripheral vascular diseases C. It is a synthetic atropine substitute used to control diarrhoea D. It is a M1/M3 selective antagonist used for spastic constipation

Description : Choose the correct statement about drotaverine: A. It is a smooth muscle antispasmodic acting by non-anticholinergic mechanisms B. It is a papaverine congener used in peripheral vascular diseases C. It ... used to control diarrhoea D. It is a M1/M3 selective antagonist used for spastic constipation

Last Answer : A. It is a smooth muscle antispasmodic acting by non-anticholinergic mechanisms

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 collecting ducts in the kidney converge to form

Description : The collecting ducts in the kidney converge to form

Last Answer : The collecting ducts in the kidney converge to form A. Pyramid B. Calyx C. Pelvis D. Column of Bertin

Furosemide inhibits reabsorption of sodium and chloride in (A) Proximal convoluted tubules (B) Loop of Henle (C) Distal convoluted tubules (D) Collecting ducts

Description : Furosemide inhibits reabsorption of sodium and chloride in (A) Proximal convoluted tubules (B) Loop of Henle (C) Distal convoluted tubules (D) Collecting ducts

Last Answer : Answer : B

Antidiuretic hormone (A) Is secreted by hypothalamus (B) Secretion is increased when osmolality of plasma decreases (C) Increases obligatory reabsorption of water (D) Acts on distal convoluted tubules and collecting ducts

Description : Antidiuretic hormone (A) Is secreted by hypothalamus (B) Secretion is increased when osmolality of plasma decreases (C) Increases obligatory reabsorption of water (D) Acts on distal convoluted tubules and collecting ducts

Last Answer : Answer : D

In a normal nephron: a. the descending loop of Henle is impermeable to water b. anti-diuretic hormone (ADH) increases the permeability of collecting ducts to water c. all the filtered glucose is re-absorbed in the proximal tubule d. nearly all the filtered protein is reabsorbed in the proximal convoluted tubule

Description : In a normal nephron: a. the descending loop of Henle is impermeable to water b. anti-diuretic hormone (ADH) increases the permeability of collecting ducts to water c. all the filtered ... in the proximal tubule d. nearly all the filtered protein is reabsorbed in the proximal convoluted tubule

Last Answer : nearly all the filtered protein is reabsorbed in the proximal convoluted tubule

The organ most sensitive to actions of atropine is: A. Gastric glands B. Salivary glands C. Urinary bladder muscle D. Heart

Description : The organ most sensitive to actions of atropine is: A. Gastric glands B. Salivary glands C. Urinary bladder muscle D. Heart

Last Answer : B. Salivary glands

Select the antibiotic whose dose must be reduced in patients with renal insufficiency: A. Ampicillin B. Chloramphenicol C. Tobramycin D. Erythromycin

Description : Select the antibiotic whose dose must be reduced in patients with renal insufficiency: A. Ampicillin B. Chloramphenicol C. Tobramycin D. Erythromycin

Last Answer : C. Tobramycin

Select the diuretic which is orally active, efficacious in acidosis as well as alkalosis, causes diuresis even in renal failure and has additional carbonic anhydrase inhibitory action: A. Mannitol B. Benzthiazide C. Indapamide D. Furosemide

Description : Select the diuretic which is orally active, efficacious in acidosis as well as alkalosis, causes diuresis even in renal failure and has additional carbonic anhydrase inhibitory action: A. Mannitol B. Benzthiazide C. Indapamide D. Furosemide

Last Answer : D. Furosemide

Estrogen and progesterone control and stimulate the growth of – (1) pituatary gland (2) thyroid gland (3) mammary gland (4) supra renal gland

Description : Estrogen and progesterone control and stimulate the growth of – (1) pituatary gland (2) thyroid gland (3) mammary gland (4) supra renal gland

Last Answer : (3) mammary gland Explanation: Mammary glands are one of the Character of mammalian. Both estrogen and progesterone control growth of mammary gland.

Estrogen and Progesterone control and stimulate the growth in: (1) Pituitary Gland (2) Thyroid Gland (3) Mammary Gland (4) Supra Renal Gland

Description : Estrogen and Progesterone control and stimulate the growth in: (1) Pituitary Gland (2) Thyroid Gland (3) Mammary Gland (4) Supra Renal Gland

Last Answer : (3) Mammary Gland Explanation: The female reproductive hormones, estrogens, progesterone, and prolactin, have a major impact on breast cancer and control postnatal mammary gland development. Optimal mammary growth requires both estrogen and progesterone.

Estrogen and Progesterone control and stimulate the growth in: (1) Pituitary Gland (2) Thyroid Gland (3) Mammary Gland (4) Supra Renal Gland

Description : Estrogen and Progesterone control and stimulate the growth in: (1) Pituitary Gland (2) Thyroid Gland (3) Mammary Gland (4) Supra Renal Gland

Last Answer : Mammary Gland

Actions of progesterone include the following except: A. Rise in body temperature B. Endometrial proliferation C. Proliferation of acini in mammary gland D. Suppression of cell mediated immunity

Description : Actions of progesterone include the following except: A. Rise in body temperature B. Endometrial proliferation C. Proliferation of acini in mammary gland D. Suppression of cell mediated immunity

Last Answer : B. Endometrial proliferatio

All of the following tissue are capable of using ketone bodies except (A) Brain (B) Renal cortex (C) R.B.C. (D) Cardiac muscle

Description : All of the following tissue are capable of using ketone bodies except (A) Brain (B) Renal cortex (C) R.B.C. (D) Cardiac muscle

Last Answer : Answer : C

The metabolic actions of adrenaline include the following except: A. Glycogenolysis in liver and muscle B. Inhibition of neoglucogenesis in liver C. Lipolysis in adipose tissue D. Release of potassium from liver followed by its uptake

Description : The metabolic actions of adrenaline include the following except: A. Glycogenolysis in liver and muscle B. Inhibition of neoglucogenesis in liver C. Lipolysis in adipose tissue D. Release of potassium from liver followed by its uptake

Last Answer : B. Inhibition of neoglucogenesis in liver