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 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 : Epinephrine is synthesised in (A) Chromaffin cells of adrenal medulla (B) Sympathetic ganglia (C) Brain (D) All of these
Last Answer : Answer : D
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 : Which of the following organs is innervated only by parasympathetic nerves ? (a) Iris muscles (b) Ciliary muscle (c) Sweat glands (d) Splenic capsule
Last Answer : Ans: B
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 : Which of the following organs is innervated only by parasympathetic nerves: A. Iris muscles B. Ciliary musclele C. Sweat glands D. Splenic capsu
Last Answer : B. Ciliary musclele
Description : Which of the following organs is innervated only by parasympathetic nerves: A. Iris muscles B. Ciliary muscle C. Sweat glands D. Splenic capsule
Last Answer : B. Ciliary muscle
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 : 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
Description : Which of the following endocrine glands does NOT produce its own hormones but stores hormones produced by the hypothalamus? A) thyroid B) adrenal cortex C) adrenal medulla D) posterior pituitary E) anterior pituitary
Last Answer : D) posterior pituitary
Description : Parasympathetic ganglia include: a. Gasserian ganglion b. otic ganglion c. stellate ganglion d. celiac ganglion
Last Answer : otic ganglion
Description : Choose the correct statement about nicotine: A. It selectively stimulates parasympathetic ganglia B. It has no clinical application C. It is used as an aid during smoking cessation D. It is used in Alzheimer's disease
Last Answer : C. It is used as an aid during smoking cessation
Description : In which category of muscle fibers, contraction can be regulated by acetylcholine neurotransmitter ?
Last Answer : In which category of muscle fibers, contraction can be regulated by acetylcholine neurotransmitter ? A. ... . Smooth muscle fibers D. all of these
Description : The neurotransmitter agent that is normally released in the sinoatrial node of the heart in response to a blood pressure increase is (a) Acetylcholine (b) Dopamine (c) Epinephrine (d) Glutamate (e) Norepinephrine
Last Answer : Ans: A
Description : The following are neurotransmitters in the autonomic ganglia: a. GABA b. noradrenaline c. acetylcholine d. 5 HT
Last Answer : acetylcholine
Description : The following are true about acetylcholine receptors: a. receptors at all autonomic ganglia are nicotinic b. receptors at the skeletal neuromuscular junction are muscarinic c. ... atropine d. acetylcholine receptors in the neuromuscular junction can be selectively blocked by tubocurarine
Last Answer : acetylcholine receptors in the neuromuscular junction can be selectively blocked by tubocurarine
Description : Parkinson’s disease (characterized by tremors and progressive rigidity of limbs) is caused by degeneration of brain neurons that are involved in movement control and make use of neurotransmitter (a) acetylcholine (b) norepinephrine (c) dopamine (d) GABA.
Last Answer : c) dopamine
Description : Which one of the following does not act as a neurotransmitter? (a) Cortisone (b) Acetylcholine (c) Epinephrine (d) Norepinephrine
Last Answer : (a) Cortisone
Description : In which the following can increase the rate of heart beat ? ltbr. (A) Sympathetic neaural signals. (B) Parasympathetic neural signals (C ) Adrenal me
Last Answer : In which the following can increase the rate of heart beat ? ltbr. (A) Sympathetic neaural signals. (B) Parasympathetic ... ,E,F C. A,C,D D. B,D,F
Description : Which of the following secretions is not stimulated by acetylcholine: A. Tear B. Bile C. Pancreatic juice D. Sweat
Last Answer : B. Bile
Description : What are the hormones secreted by Adrenal gland (Adrenal cortex, Adrenal medulla)? What are the chief functions of these hormones. -Biology
Last Answer : answer:
Description : Assertion : Adrenal gland have dual origin. Reason : The aderenal cortex develops from endoderm while adrenal medulla develops from mesoderm.
Last Answer : Assertion : Adrenal gland have dual origin. Reason : The aderenal cortex develops from endoderm while ... D. If both Assertion and Reason are false.
Description : Pheochromacytoma is a tumor of (A) adrenal medulla (B) bone (C) head of Pancreas (D) pituitary
Last Answer : Answer : A
Description : Steroid hormones are synthesised in all of the following except (A) Testes (B) Ovaries (C) Adrenal medulla (D) Adrenal cortex
Description : Pheochromocytomas are tumours of (A) Adrenal cortex (B) Adrenal medulla (C) Pancreas (D) Bone
Last Answer : Answer : B
Description : Catecholamine hormones are synthesized in the (A) Chromaffin cells of adrenal medulla (B) Zona glomerulosa of adrenal cortex (C) Zona fasciculate of adrenal cortex (D) Zona reticularis of adrenal cortex
Description : In human body highest concentration of ascorbic acid is found in (A) Liver (B) Adrenal cortex (C) Adrenal medulla (D) Spleen
Description : Mention the hormones secreted by adrenal medulla.
Last Answer : Adrenal medulla secretes three hormones adrenaline, nor-adrenaline and dopamine.
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.
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
Description : Figure shows human urinary system with structures labelled A to D. Select option which correctly identifies them and gives their characteristic and/ or functions. (a) C - Medulla - inner zone of ... B - Pelvis - broad funnel shaped space inner to hilum, directly connected to loops of Henle
Last Answer : (c) A - Adrenal gland - located at the anterior part of kidney. Secrete catecholamines which stimulate glycogen breakdown.
Description : Cortisol is released from the A) adrenal medulla. B) adrenal cortex. C) thyroid. D) parathyroid. E) posterior pituitary.
Last Answer : B) adrenal cortex.
Description : A woman with a beard most likely has a malfunctioning A) pancreas. B) pituitary. C) adrenal cortex. D) adrenal medulla. E) thyroid.
Last Answer : C) adrenal cortex.
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 : 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
Description : The controlling or master gland(s) of the body is(are) the A) adrenal medulla and cortex. B) testes and ovaries. C) hypothalamus and anterior pituitary. D) pancreas. E) thyroid and parathyroid.
Last Answer : C) hypothalamus and anterior pituitary.
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
Last Answer : D. All of the above
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
Description : Excess secretion from this gland can cause a person to be thin, hyperactive, always hungry, & irritable. a) adrenal cortex b) thyroid c) anterior pituitary d) adrenal medulla
Last Answer : ANSWER: B -- THYROID
Description : What is the composition of sweat produced by sweat glands? -Biology
Description : Where do Sweat glands occur in greatest number? -Do You Know?
Last Answer : According to Henry Gray, the palm has around 370 sweat glands per square cm.,and back of hand has 200 persquare cm.
Description : In Rabbit sweat glands are present in
Last Answer : In Rabbit sweat glands are present in A. Near the eyes B. The digits C. The lips D. Noen of these
Description : What are sweat glands found in the pubic region?
Last Answer : There are two types based on glandular secretion.1. Merocrine is also called eccrine glands. They are coiled indeep dermis and respond to elevatedtemperature / exercise.They produce no odor and function ... .They are found in the armpits and groin. They produce sweat plusoil and cellular debris.
Description : What is the major function of the sweat glands?
Last Answer : cooling of the body by evaporation
Description : What are the similarities between sweat glands and nephrons?
Last Answer : attempt by the sweat glands to take over the function of the failing kidneys. ... There are anatomical and physiological similarities between the nephron – the.