Question 1

Which of the following is not an effect of thyroid hormone?

Accepted Answer

A)  increased metabolic rate 
B)  increased tissue responsiveness to catecholamines 
C)  increased absorption of iodine from the digestive tract into the blood 
D)  normal growth 
E)  normal development of the nervous system 
A)  increased metabolic rate 
B)  increased tissue responsiveness to catecholamines 
C)  increased absorption of iodine from the digestive tract into the blood 
D)  normal growth 
E)  normal development of the nervous system C

Question 2

Most of the secreted T3 is converted into T4 outside of the thyroid gland.

Accepted Answer

A) True 
 B)False  False

Question 3

Which of the following is associated with hyperthyroidism?

Accepted Answer

A)  poor resistance to cold 
B)  myxedema 
C)  weight gain 
D)  slow speech, poor memory 
E)  exophthalmos 
A)  poor resistance to cold 
B)  myxedema 
C)  weight gain 
D)  slow speech, poor memory 
E)  exophthalmos E

Question 4

Insulin

Accepted Answer

A)  facilitates the entry of glucose into brain tissue 
B)  promotes glucose output by the liver 
C)  lowers blood glucose levels 
D)  both facilitates the entry of glucose into brain tissue and lowers blood glucose levels 
E)  all of these 
A)  facilitates the entry of glucose into brain tissue 
B)  promotes glucose output by the liver 
C)  lowers blood glucose levels 
D)  both facilitates the entry of glucose into brain tissue and lowers blood glucose levels 
E)  all of these

Question 5

Which of the following statements concerning parathyroid hormone is incorrect?

Accepted Answer

A)  It causes localized dissolution of bone. 
B)  It conserves Ca2+ by the kidney. 
C)  It promotes urinary excretion of PO4. 
D)  It directly stimulates Ca2+ absorption from the intestine. 
E)  It is essential for life. 
A)  It causes localized dissolution of bone. 
B)  It conserves Ca2+ by the kidney. 
C)  It promotes urinary excretion of PO4. 
D)  It directly stimulates Ca2+ absorption from the intestine. 
E)  It is essential for life.

Question 6

The major factor that promotes increased secretion of CRH is

Accepted Answer

A)  low Na+ concentration in the extracellular fluid 
B)  stress 
C)  angiotensin II 
D)  increased blood amino acid concentration 
E)  increased blood glucose concentration 
A)  low Na+ concentration in the extracellular fluid 
B)  stress 
C)  angiotensin II 
D)  increased blood amino acid concentration 
E)  increased blood glucose concentration

Question 7

Which of the following is not a cause of hypothyroidism?

Accepted Answer

A)  lack of TRH 
B)  iodine-deficient diet 
C)  Grave's disease 
D)  lack of an enzyme necessary for one of the steps in the synthesis and release of thyroid hormone 
E)  all of these 
A)  lack of TRH 
B)  iodine-deficient diet 
C)  Grave's disease 
D)  lack of an enzyme necessary for one of the steps in the synthesis and release of thyroid hormone 
E)  all of these

Question 8

Complete each of the following statments.
An enlarged thyroid is called a(n) ____________________.

Accepted Answer

The answer of Complete each of the following statments.
An enlarged...

Question 9

Which of the following is not an effect of glucagon?

Accepted Answer

A)  It diminishes the degradation of hepatic proteins. 
B)  It enhances hepatic ketogenesis. 
C)  It increases hepatic glucose production. 
D)  It is secreted by the alpha cells of the pancreas. 
E)  It opposes the effect of insulin in most cases. 
A)  It diminishes the degradation of hepatic proteins. 
B)  It enhances hepatic ketogenesis. 
C)  It increases hepatic glucose production. 
D)  It is secreted by the alpha cells of the pancreas. 
E)  It opposes the effect of insulin in most cases.

Question 10

The zona glomerulosa of the adrenal cortex secretes

Accepted Answer

A)  aldosterone 
B)  cortisol 
C)  androgens and estrogens 
D)  cortisol, androgens, and estrogens 
E)  all of these 
A)  aldosterone 
B)  cortisol 
C)  androgens and estrogens 
D)  cortisol, androgens, and estrogens 
E)  all of these

Question 11

Select the incorrect effect of epinephrine.

Accepted Answer

A)  It constricts the respiratory airways. 
B)  It elevates the concentration of blood sugar. 
C)  It stimulates glycogenolysis in skeletal muscles. 
D)  It stimulates hepatic gluconeogenesis. 
E)  It stimulates hepatic glycogenesis. 
A)  It constricts the respiratory airways. 
B)  It elevates the concentration of blood sugar. 
C)  It stimulates glycogenolysis in skeletal muscles. 
D)  It stimulates hepatic gluconeogenesis. 
E)  It stimulates hepatic glycogenesis.

Question 12

Sympathetic stimulation inhibits the secretion of insulin.

Accepted Answer

A) True 
 B)False

Question 13

Aldosterone

Accepted Answer

A)  enhances the ability of the kidneys to eliminate excess K+ 
B)  directly promotes H2O conservation by the kidneys 
C)  secretion is encouraged by angiotensin II 
D)  is nonsteroidal 
E)  is produced in the adrenal medulla 
A)  enhances the ability of the kidneys to eliminate excess K+ 
B)  directly promotes H2O conservation by the kidneys 
C)  secretion is encouraged by angiotensin II 
D)  is nonsteroidal 
E)  is produced in the adrenal medulla

Question 14

Which of the following is characteristic of Conn's syndrome?

Accepted Answer

A)  K+ increase in the blood 
B)  Na+ depletion 
C)  hypertension 
D)  both K+ increase in the blood and hypertension 
E)  all of these 
A)  K+ increase in the blood 
B)  Na+ depletion 
C)  hypertension 
D)  both K+ increase in the blood and hypertension 
E)  all of these

Question 15

Which of the following factors increases insulin but not glucagon secretion?

Accepted Answer

A)  increased blood glucose levels 
B)  increased amino acids (especially during a protein-rich meal) 
C)  an anticipatory response mediated through an increase in vagal activity and gastrointestinal hormones 
D)  increased blood glucose levels and an anticipatory response mediated through an increase in vagal activity and gastrointestinal hormones 
E)  increased amino acids (especially during a protein-rich meal), and an anticipatory response mediated through an increase in vagal activity and gastrointestinal hormones 
A)  increased blood glucose levels 
B)  increased amino acids (especially during a protein-rich meal) 
C)  an anticipatory response mediated through an increase in vagal activity and gastrointestinal hormones 
D)  increased blood glucose levels and an anticipatory response mediated through an increase in vagal activity and gastrointestinal hormones 
E)  increased amino acids (especially during a protein-rich meal), and an anticipatory response mediated through an increase in vagal activity and gastrointestinal hormones

Question 16

TSH

Accepted Answer

A)  is stimulated by thyrotropin-releasing hormone (TRH) 
B)  is inhibited by T3 and T4 
C)  increases the rate of thyroid hormone secretion 
D)  promotes hypertrophy and hyperplasia of thyroid cells 
E)  all of these 
A)  is stimulated by thyrotropin-releasing hormone (TRH) 
B)  is inhibited by T3 and T4 
C)  increases the rate of thyroid hormone secretion 
D)  promotes hypertrophy and hyperplasia of thyroid cells 
E)  all of these

Question 17

Insulin and glucagon secretion are both stimulated by an increase in blood amino acid concentration.

Accepted Answer

A) True 
 B)False

Question 18

Which of the following would not decrease thyroid hormone production?

Accepted Answer

A)  a decrease in TSH production 
B)  an iodine deficient diet 
C)  an increase in TRH production 
D)  inhibition of the iodine pump 
E)  removal of the pituitary 
A)  a decrease in TSH production 
B)  an iodine deficient diet 
C)  an increase in TRH production 
D)  inhibition of the iodine pump 
E)  removal of the pituitary

Question 19

Complete each of the following statments.
The inner portion of the adrenal gland is the ____________________, which secretes hormones belonging to the chemical class of ____________________.

Accepted Answer

adrenal me

Question 20

Catecholamines are secreted from the adrenal medulla in response to

Accepted Answer

A)  increased secretion of ACTH from the anterior pituitary 
B)  direct sympathetic nervous system stimulation 
C)  decreased androgen secretion from the adrenal cortex 
D)  a tropic hormone secreted by the pituitary 
E)  stimulation by chromaffin-releasing hormone 
A)  increased secretion of ACTH from the anterior pituitary 
B)  direct sympathetic nervous system stimulation 
C)  decreased androgen secretion from the adrenal cortex 
D)  a tropic hormone secreted by the pituitary 
E)  stimulation by chromaffin-releasing hormone

Exam 19: A--The Peripheral Endocrine Glands

Which of the following is not an effect of thyroid hormone?

Most of the secreted T3 is converted into T4 outside of the thyroid gland.

Which of the following is associated with hyperthyroidism?

Insulin

Which of the following statements concerning parathyroid hormone is incorrect?

The major factor that promotes increased secretion of CRH is

Which of the following is not a cause of hypothyroidism?

Complete each of the following statments. An enlarged thyroid is called a(n) ____________________.

Which of the following is not an effect of glucagon?

The zona glomerulosa of the adrenal cortex secretes

Select the incorrect effect of epinephrine.

Sympathetic stimulation inhibits the secretion of insulin.

Aldosterone

Which of the following is characteristic of Conn's syndrome?

Which of the following factors increases insulin but not glucagon secretion?

TSH

Insulin and glucagon secretion are both stimulated by an increase in blood amino acid concentration.

Which of the following would not decrease thyroid hormone production?

Complete each of the following statments. The inner portion of the adrenal gland is the ____________________, which secretes hormones belonging to the chemical class of ____________________.

Catecholamines are secreted from the adrenal medulla in response to

Introduction to Physiology and Homeostasis

Cell Physiology

The Plasma Membrane and Membrane Potential

Principles of Neural and Hormonal Communication

A--The Central Nervous System

B--The Central Nervous System

A--The Peripheral Nervous System: Afferent Division; Special Senses

B--The Peripheral Nervous System: Afferent Division; Special Senses

The Peripheral Nervous System: Efferent Division

A--Muscle Physiology

B--Muscle Physiology

A--Cardiac Physiology

B--Cardiac Physiology

The Blood Vessels and Blood Pressure

The Blood

Body Defenses

A--The Respiratory System

B--The Respiratory System

A--The Urinary System

B--The Urinary System

A--Fluid and Acid-Base Balance

B--Fluid and Acid-Base Balance

A--The Digestive System

B--The Digestive System

Energy Balance and Temperature Regulation

A--Principles of Endocrinology: the Central Endocrine Glands

B--Principles of Endocrinology: the Central Endocrine Glands

B--The Peripheral Endocrine Glands

A--The Reproductive System

B--The Reproductive System

Filters

Most of the secreted T₃ is converted into T₄ outside of the thyroid gland.

Complete each of the following statments. The inner portion of the adrenal gland is the , which secretes hormones belonging to the chemical class of .