Secretion of PTH is regulated by (A) Hypothalamus (B) Anterior pituitary (C) Feedback effect of plasma PTH (D) Feedback effect of plasma calcium

Secretion of PTH is regulated by (A) Hypothalamus (B) Anterior pituitary (C) Feedback effect of plasma PTH (D) Feedback effect of plasma calcium
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Secretion of glucocorticoida is regulated by all the following except (A) Hypothalamus (B) Anterior pituitary (C) Feedback control by blood glucose (D) Feedback control by glucocorticoids

Description : Secretion of glucocorticoida is regulated by all the following except (A) Hypothalamus (B) Anterior pituitary (C) Feedback control by blood glucose (D) Feedback control by glucocorticoids

Last Answer : Answer : C

Secretion of thyroid hormones is regulated by (A) Hypothalamus (B) Anterior pituitary (C) Feedback regulation (D) All of these 220 MCQs IN BIOCHEMISTRY

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Anterior pituitary & posterior pituitary hormones are regulated by hypothalamus respectively through

Description : Anterior pituitary & posterior pituitary hormones are regulated by hypothalamus respectively through

Last Answer : Anterior pituitary & posterior pituitary hormones are regulated by hypothalamus respectively through

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

Somatotropin is secreted by (A) Hypothalamus (B) Anterior pituitary (C) Posterior pituitary (D) Thyroid gland

Description : Somatotropin is secreted by (A) Hypothalamus (B) Anterior pituitary (C) Posterior pituitary (D) Thyroid gland

Last Answer : Answer : B

Which statement is NOT correct about PTH? A) When calcium level rises, PTH secretion is inhibited. B) When calcium level lowers, PTH secretion is stimulated. C) PTH has the opposite effect of calcitonin. D) PTH stimulates calcium absorption from the gut. E) PTH decreases the activity of osteoclasts.

Description : Which statement is NOT correct about PTH? A) When calcium level rises, PTH secretion is inhibited. B) When calcium level lowers, PTH secretion is stimulated. C) PTH has the opposite effect of ... . D) PTH stimulates calcium absorption from the gut. E) PTH decreases the activity of osteoclasts.

Last Answer : E) PTH decreases the activity of osteoclasts.

Regulation of ACTH secretion occurs through (A) Corticotropin releasing hormone (CRH) and corticotropin release inhibiting hormone (CRIH) of hypothalamus (B) Feedback inhibition by cortisol (C) CRH and feedback inhibition by cortisol (D) CRIH and feedback inhibition by cortisol

Description : Regulation of ACTH secretion occurs through (A) Corticotropin releasing hormone (CRH) and corticotropin release inhibiting hormone (CRIH) of hypothalamus (B) Feedback inhibition by cortisol (C) CRH and feedback inhibition by cortisol (D) CRIH and feedback inhibition by cortisol

Last Answer : Answer : C

All the following statements about FSH are true except (A) It is a tropic hormone secreted by anterior pituitary (B) Its secretion is increased by gonadotropin releasing hormone (C) It acts on Sertoli cells (D) It increases the synthesis of testosterone

Description : All the following statements about FSH are true except (A) It is a tropic hormone secreted by anterior pituitary (B) Its secretion is increased by gonadotropin releasing hormone (C) It acts on Sertoli cells (D) It increases the synthesis of testosterone

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The transport of proteins out of the cell is termed exocytosis. Which of the following statement(s) is/are true concerning this process? a. Secretory vesicles fuse with the plasma membrane b. The process can occur in either a constitutive or regulated process c. A regulated secretion is triggered by a stimulus, most likely a hormone or a neurotransmitter d. A decrease in cytoplasmic calcium occurs as part of the secretion process

Description : The transport of proteins out of the cell is termed exocytosis. Which of the following statement(s) is/are true concerning this process? a. Secretory vesicles fuse with the plasma membrane b. ... or a neurotransmitter d. A decrease in cytoplasmic calcium occurs as part of the secretion process

Last Answer : Answer: a, b, c Transport vesicles that bud off the Golgi network carry both material to be secreted from the cell and protein destined to become components of the plasma ... but may also involve generation of diacylglycerol or production of cyclic AMP which activate kinases or phosphatases

Which of the following is an accumulation and release centre of neurohormones? (a) Anterior pituitary lobe (b) Posterior pituitary lobe (c) Intermediate lobe of the pituitary (d) Hypothalamus

Description : Which of the following is an accumulation and release centre of neurohormones? (a) Anterior pituitary lobe (b) Posterior pituitary lobe (c) Intermediate lobe of the pituitary (d) Hypothalamus

Last Answer : (d) Hypothalamus

What is the cascade of events that follows a stress or trauma to produce adrenal reaction? A) hypothalamus (ACTH-releasing hormone)-anterior pituitary (ACTH)-adrenal cortex mineralocorticoids and glucocorticoids (regulate metabolism and sugar level) B) hypothalamus (ACTH-releasing hormone)-anterior pituitary (ACTH)-adrenal cortex epinephrine and norepinephrine (regulate metabolism and sugar level) C) anterior pituitary (ACTH)-hypothalamus (ACTH-releasing hormone)-adrenal cortex hormones D) adrenal cortex (hormones)-anterior pituitary (ACTH)-hypothalamus (ACTH-releasing hormone) E) adrenal cortex (hormones)-hypothalamus (ACTH-releasing hormone)-anterior pituitary (ACTH)

Description : What is the cascade of events that follows a stress or trauma to produce adrenal reaction? A) hypothalamus (ACTH-releasing hormone)-anterior pituitary (ACTH)-adrenal cortex mineralocorticoids and ... ) E) adrenal cortex (hormones)-hypothalamus (ACTH-releasing hormone)-anterior pituitary (ACTH)

Last Answer : A) hypothalamus (ACTH-releasing hormone)-anterior pituitary (ACTH)-adrenal cortex mineralocorticoids and glucocorticoids (regulate metabolism and sugar level)

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.

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.

The part of the brain controlling the anterior pituitary gland secretions is the A) medulla. B) thalamus. C) cerebral cortex. D) hypothalamus. E) cerebellum. Answer: D 21. Which of the following hormones is/are NOT a product of the anterior lobe of the pituitary? A) growth hormone B) antidiuretic hormone C) gonadotropic hormones D) thyroid-stimulating hormone E) adrenocorticotropic hormone

Description : The part of the brain controlling the anterior pituitary gland secretions is the A) medulla. B) thalamus. C) cerebral cortex. D) hypothalamus. E) cerebellum. Answer: D ... B) antidiuretic hormone C) gonadotropic hormones D) thyroid-stimulating hormone E) adrenocorticotropic hormone

Last Answer : B) thalamus.

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

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

A high concentration of PTH in blood causes (A) Increase in plasma calcium and inorganic phosphorous (B) Decrease in plasma calcium and inorganic phosphorous (C) Increase in plasma calcium and decrease in plasma inorganic phosphorous (D) Decrease in plasma calcium and increase in plasma inorganic phosphorous

Description : A high concentration of PTH in blood causes (A) Increase in plasma calcium and inorganic phosphorous (B) Decrease in plasma calcium and inorganic phosphorous (C) Increase in plasma calcium ... in plasma inorganic phosphorous (D) Decrease in plasma calcium and increase in plasma inorganic phosphorous

Last Answer : Answer : C

Secretion of prolactin is regulated by (A) Feedback inhibition (B) Prolactin releasing hormone (C) Prolactin release inhibiting hormone (D) All of these

Description : Secretion of prolactin is regulated by (A) Feedback inhibition (B) Prolactin releasing hormone (C) Prolactin release inhibiting hormone (D) All of these

Last Answer : Answer : C

Secretion of MSH is regulated by (A) Feedback mechanism (B) Melatonin (C) Hypothalamic hormones (D) ACTH HORMONE METABOLISM 217

Description : Secretion of MSH is regulated by (A) Feedback mechanism (B) Melatonin (C) Hypothalamic hormones (D) ACTH HORMONE METABOLISM 217

Last Answer : Answer : C

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

Which gland in the human body regulates the secretion of hormones from the pituitary gland? (1) Thymus gland (2) Thyroid gland (3) Adrenal gland (4) Hypothalamus gland

Description : Which gland in the human body regulates the secretion of hormones from the pituitary gland? (1) Thymus gland (2) Thyroid gland (3) Adrenal gland (4) Hypothalamus gland

Last Answer : Hypothalamus gland 

Potassium metabolism is regulated by the hormone: (A) Aldosterone (B) PTH (C) Somatostatin (D) Estrogen

Description : Potassium metabolism is regulated by the hormone: (A) Aldosterone (B) PTH (C) Somatostatin (D) Estrogen

Last Answer : Answer : A

The metabolism of sodium is regulated by the hormone: (A) Insulin (B) Aldosterone (C) PTH (D) Somatostatin

Description : The metabolism of sodium is regulated by the hormone: (A) Insulin (B) Aldosterone (C) PTH (D) Somatostatin

Last Answer : Answer : B

A 55-year-old male undergoes a total abdominal colectomy. Which of the following statement(s) is/are true concerning the hormonal response to the surgical procedure? a. Adrenocorticotropic hormone (ACTH) is secreted from the anterior pituitary gland b. ACTH stimulation results in elevation of serum cortisol levels for up to a week after the operation c. An increased secretion of aldosterone and ADH may contribute to postoperative fluid retention d. An increase in serum insulin and a fall in glucagon accelerate hepatic glucose production and maintain gluconeogenesis

Description : A 55-year-old male undergoes a total abdominal colectomy. Which of the following statement(s) is/are true concerning the hormonal response to the surgical procedure? a. Adrenocorticotropic ... in serum insulin and a fall in glucagon accelerate hepatic glucose production and maintain gluconeogenesis

Last Answer : Answer: a, c One of the earliest consequence of a surgical procedure is the rise in levels of circulating cortisol that occur in response to a sudden outpouring of ACTH ... hepatic glucose production, and, with other hormones (epinephrine and glucocorticoids), gluconeogenesis is maintained

GnRH, a hypothalamic hormone, needed in reproduction, acts on (a) anterior pituitary gland and stimulates secretion of LH and FSH (b) posterior pituitary gland and stimulates secretion of oxytocin and FSH (c) posterior pituitary gland and stimulates secretion of LH and relaxin (d) anterior pituitary gland and stimulates secretion of LH and oxytocin.

Description : GnRH, a hypothalamic hormone, needed in reproduction, acts on (a) anterior pituitary gland and stimulates secretion of LH and FSH (b) posterior pituitary gland and stimulates secretion of oxytocin ... of LH and relaxin (d) anterior pituitary gland and stimulates secretion of LH and oxytocin.

Last Answer : (a) anterior pituitary gland and stimulates secretion of LH and FSH

GnRH, a hypothalamic hormone, needed in reproduction, acts on: (1) anterior pituitary gland and stimulates secretion of LH and FSH. (2) posterior pituitary gland and stimulates secretion of oxytocin and FSH. (3) posterior pituitary gland and stimulates secretion of LH and relaxin. (4) anterior pituitary gland and stimulates secretion of LH and oxytocin.

Description : GnRH, a hypothalamic hormone, needed in reproduction, acts on: (1) anterior pituitary gland and stimulates secretion of LH and FSH. (2) posterior pituitary gland and stimulates secretion of oxytocin and ... of LH and relaxin. (4) anterior pituitary gland and stimulates secretion of LH and oxytocin.

Last Answer : 1) anterior pituitary gland and stimulates secretion of LH and FSH.

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

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

Match the source gland with its respective hormone and function and select the correct option. Source Hormone Function gland (a) Anterior Oxytocin Contraction of uterus pituitary muscles during child birth (b) Posterior Vasopressin Stimulates pituitary reabsorption of water in the distal tubules in the nephron (c) Corpus Estrogen Supports pregnancy luteum (d) Thyroid Thyroxine Regulates blood calcium level

Description : Match the source gland with its respective hormone and function and select the correct option. Source Hormone Function gland (a) Anterior Oxytocin Contraction of uterus pituitary muscles during ... (c) Corpus Estrogen Supports pregnancy luteum (d) Thyroid Thyroxine Regulates blood calcium level

Last Answer : (b) Posterior Vasopressin Stimulates pituitary reabsorption of water in the distal tubules in the nephron

Anti-diuretic diuretic hormone (ADH) a. is synthesized by the posterior lobe of the pituitary gland b. is released by neurosecretion c. its secretion is increased by a low plasma osmolarity d. increases the permeability of the distal convoluted tubule

Description : Anti-diuretic diuretic hormone (ADH) a. is synthesized by the posterior lobe of the pituitary gland b. is released by neurosecretion c. its secretion is increased by a low plasma osmolarity d. increases the permeability of the distal convoluted tubule

Last Answer : is released by neurosecretion

PTH causes all of the following except (A) Increased intestinal absorption of calcium (B) Increased intestinal absorption of phosphate (C) Increased tubular reabsorption of calcium (D) Increased tubular reabsorption of phosphate

Description : PTH causes all of the following except (A) Increased intestinal absorption of calcium (B) Increased intestinal absorption of phosphate (C) Increased tubular reabsorption of calcium (D) Increased tubular reabsorption of phosphate

Last Answer : Answer : D

PTH (A) Reduces the renal clearance or excretion of calcium (B) Increases renal phosphate clearance (C) Increases the renal clearance of calcium (D) Decreases the renal phosphate clearance

Description : PTH (A) Reduces the renal clearance or excretion of calcium (B) Increases renal phosphate clearance (C) Increases the renal clearance of calcium (D) Decreases the renal phosphate clearance

Last Answer : Answer : A

A high plasma calcium level decreases intestinal absorption of calcium by (A) Stimulating the secretion of parathormone (B) Inhibiting the secretion of parathormone (C) Decreasing the synthesis of cholecalciferol (D) Inhibiting the secretion of thyrocalcitonin

Description : A high plasma calcium level decreases intestinal absorption of calcium by (A) Stimulating the secretion of parathormone (B) Inhibiting the secretion of parathormone (C) Decreasing the synthesis of cholecalciferol (D) Inhibiting the secretion of thyrocalcitonin

Last Answer : Answer : B

Melatonin is synthesised in (A) Hypothalamus (B) Posterior pituitary gland (C) Pineal gland (D) Melanocytes

Description : Melatonin is synthesised in (A) Hypothalamus (B) Posterior pituitary gland (C) Pineal gland (D) Melanocytes

Last Answer : Answer : C

All the following statements about proopiomelanocortin are true except (A) It is made up of 285 amino acids (B) It is synthesised in pars intermedia and anterior lobe of pituitary gland (C) It is the precursor of ACTH and melatonin (D) It is the precursor of corticotropin like intermediate lobe peptide and endorphins 218 MCQs IN BIOCHEMISTRY

Description : All the following statements about proopiomelanocortin are true except (A) It is made up of 285 amino acids (B) It is synthesised in pars intermedia and anterior lobe of pituitary gland ... ) It is the precursor of corticotropin like intermediate lobe peptide and endorphins 218 MCQs IN BIOCHEMISTRY

Last Answer : Answer : C

Melanocyte stimulating hormone is secreted by (A) Pineal gland (B) Anterior lobe of pituitary gland (C) Posterior lobe of pituitary gland (D) Intermediate lobe of pituitary gland

Description : Melanocyte stimulating hormone is secreted by (A) Pineal gland (B) Anterior lobe of pituitary gland (C) Posterior lobe of pituitary gland (D) Intermediate lobe of pituitary gland

Last Answer : Answer : D

The hormone measured in urine to test pregnancy is (A) Anterior pituitary luteinizing hormone (B) Androgen (C) Progesterone (D) Choroinic gonadotropin

Description : The hormone measured in urine to test pregnancy is (A) Anterior pituitary luteinizing hormone (B) Androgen (C) Progesterone (D) Choroinic gonadotropin

Last Answer : Answer : D

A hormone secreted from anterior pituitary is (A) Growth hormone (B) Vasopressin (C) Oxytocin (D) Epinephrine

Description : A hormone secreted from anterior pituitary is (A) Growth hormone (B) Vasopressin (C) Oxytocin (D) Epinephrine

Last Answer : Answer : A

Prostaglandins are liberated in the circulation by the stimulation of (A) Anterior pituitary glands (B) Posterior pituitary glands (C) Adrenal gland (D) Thyroid gland

Description : Prostaglandins are liberated in the circulation by the stimulation of (A) Anterior pituitary glands (B) Posterior pituitary glands (C) Adrenal gland (D) Thyroid gland

Last Answer : Answer : C

All the following statements about thyrotropin releasing hormone are true except (A) It is secreted by hypothalamus (B) It is a pentapeptide (C) It increases the secretion of TSH (D) Its secretion is inhibited by high level of T3 and T4 in blood

Description : All the following statements about thyrotropin releasing hormone are true except (A) It is secreted by hypothalamus (B) It is a pentapeptide (C) It increases the secretion of TSH (D) Its secretion is inhibited by high level of T3 and T4 in blood

Last Answer : Answer : B

Gastric Secretion is regulated by the hormone: (A) Glucagon (B) Gastrin (C) Epinephrin (D) ACTH

Description : Gastric Secretion is regulated by the hormone: (A) Glucagon (B) Gastrin (C) Epinephrin (D) ACTH

Last Answer : Answer : B

The body temperature is regulated by (1) Pituitory gland (2) Hypothalamus (3) Pineal gland (4) Thyroid gland

Description : The body temperature is regulated by (1) Pituitory gland (2) Hypothalamus (3) Pineal gland (4) Thyroid gland

Last Answer : (2) Hypothalamus Explanation: Hypothalamus is a portion of the brain that contains a number of small nuclei with a variety of functions. One of the most important functions of the ... hormones. The hypothalamus controls body temperature, hunger, thirst, fatigue, sleep, and circadian cycles.

The body temperature is regulated by— (1) Pituitory gland (2) Hypothalamus (3) Pineal gland (4) Thyroid gland

Description : The body temperature is regulated by— (1) Pituitory gland (2) Hypothalamus (3) Pineal gland (4) Thyroid gland

Last Answer : Hypothalamus

Aldosterone secretion is controlled by: a. plasma sodium concentration b. plasma calcium concentration c. plasma potassium concentration d. angiotensin II

Description : Aldosterone secretion is controlled by: a. plasma sodium concentration b. plasma calcium concentration c. plasma potassium concentration d. angiotensin II

Last Answer : angiotensin II

Chemical natrue of all the hormone which are secreted from pituitary ad hypothalamus is

Description : Chemical natrue of all the hormone which are secreted from pituitary ad hypothalamus is

Last Answer : Chemical natrue of all the hormone which are secreted from pituitary ad hypothalamus is

Two hormones ….. (a) ….. and ……. (b) …… synthesize in hypothalamus and transport in pituitary gland through …… (c ) …….. and ……. (d) ……. respectively.

Description : Two hormones ….. (a) ….. and ……. (b) …… synthesize in hypothalamus and transport in pituitary gland through …… (c ) …….. and ……. (d) ……. respectively.

Last Answer : Two hormones .. (a) .. and . (b) synthesize in hypothalamus and transport in ... axonal transport b = ADH `rArr` d = portasl circulation

The gland which maintains body temperature is the _____. A. Pituitary gland B. Thyroid gland C. Adrenals D. Hypothalamus

Description : The gland which maintains body temperature is the _____. A. Pituitary gland B. Thyroid gland C. Adrenals D. Hypothalamus

Last Answer : ANSWER: B

The gland which maintains body temperature is the _____. A. Pituitary gland B. Thyroid gland C. Adrenals D. Hypothalamus

Description : The gland which maintains body temperature is the _____. A. Pituitary gland B. Thyroid gland C. Adrenals D. Hypothalamus

Last Answer : ANSWER: B

The gland which maintains body temperature is the _____. A. Pituitary gland B. Thyroid gland C. Adrenals D. Hypothalamus

Description : The gland which maintains body temperature is the _____. A. Pituitary gland B. Thyroid gland C. Adrenals D. Hypothalamus

Last Answer : ANSWER: B

Which is the gland that holds the body's thermostat? (1) Pineal (2) Pituitary (3) Thyroid (4) Hypothalamus

Description : Which is the gland that holds the body's thermostat? (1) Pineal (2) Pituitary (3) Thyroid (4) Hypothalamus

Last Answer : (4) Hypothalamus Explanation: The body keeps its core temperature constant at about 37 C by physiological adjustments controlled by the hypothalamus (Thermostat Center) where there ... Thermoreceptors) and from internal structures (Central Thermoreceptors), which include the hypothalamus itself.

Which of the following statements is correct in relation to the endocrine system? (a) Non-nutrient chemicals produced by the body in trace amounts that act as intercellular messenger are known as hormones. (b) Releasing and inhibitory hormones are produced by the pituitary gland. (c) Adenohypophysis is under direct neural regulation of the hypothalamus. (d) Organs in the body like gastrointestinal tract, heart, kidney and liver do not produce any hormones.

Description : Which of the following statements is correct in relation to the endocrine system? (a) Non-nutrient chemicals produced by the body in trace amounts that act as intercellular messenger are known as ... in the body like gastrointestinal tract, heart, kidney and liver do not produce any hormones.

Last Answer : (a) Non-nutrient chemicals produced by the body in trace amounts that act as intercellular messenger are known as hormones.