Question 1

The hypothalamic releasing hormones

Accepted Answer

A)   are produced by glial cells
B)   are transported along nerve axons to their target cells
C)   are steroid hormones
D)   control the release of the anterior pituitary hormonesE) All of the above
F) A) and C)

Question 2

Which of the hypothalamic hormones that control the anterior pituitary is NOT a peptide hormone?

Accepted Answer

A)   CRH
B)   TRH
C)   Somatostatin
D)   PIHE) None of the above
F) A) and D)

Question 3

The heart is a part of circulatory system but it is also a part of endocrine system because it secretes hormone(s).

Accepted Answer

A) True 
 B)False  True

Question 4

Insulin like growth factors

Accepted Answer

A)   lower blood glucose levels
B)   mediate the action of growth hormone on bones
C)   cause uterine contractions in females
D)   cause an increased volume of urine to formE) B) and D)
F) A) and D)

Question 5

Both anterior and posterior pituitary lobes use portal circulation to deliver hormones to the peripheral endocrine organs

Accepted Answer

A) True 
 B)False

Question 6

An important hormone precursor that is formed in the skin when it is exposed to sunlight is

Accepted Answer

A)   cholesterol
B)   melatonin
C)   melanin
D)   cholecalciferolE) B) and D)
F) A) and B)

Question 7

The production of aldosterone

Accepted Answer

A)   is usually associated with increased plasma renin activity
B)   is mainly under the control of the adenohypophysis
C)   increases when the sodium ion concentration rises by more than 10 mmol/L
D)   is inhibited by angiotensin IIE) B) and D)
F) B) and C)

Question 8

Glucagon is a peptide hormone that increases blood glucose levels. Based on this information where in the cell would you search for glucagon receptors?

Accepted Answer

A)   on the surface of the cell membrane
B)   in the cytoplasm
C)   in the nucleus
D)   on the endoplasmic reticulumE) A) and B)
F) A) and C)

Question 9

Which of the following hormones interact with a receptor in the nucleus?

Accepted Answer

A)   thyroid-stimulating hormone
B)   estradiol
C)   parathyroid hormone
D)   norepinephrineE) B) and C)
F) All of the above

Question 10

One of the symptoms of excessive secretion of thyroid hormones is the increased heart rate. The mechanism of this is

Accepted Answer

A)   permissive effect of thyroid hormones on epinephrine
B)   synergistic effect between thyroid hormones and epinephrine
C)   antagonistic effect between thyroid hormones and epinephrine
D)   tropic effect of epinephrine on thyroid hormonesE) None of the above
F) B) and D)

Question 11

The health of the bone depends on the balance between bone resorption and bone deposition. What modifiable factors contribute to the maintenance of healthy bones in adulthood?

Accepted Answer

A)   genetics
B)   age
C)   exercise
D)   gravityE) A) and C)
F) B) and D)

Question 12

Cells from the hypothalamus influence which lobe(s)  of the pituitary gland via a portal system?

Accepted Answer

A)   anterior
B)   posterior
C)   both
D)   neitherE) C) and D)
F) B) and D)

Question 13

Thyroid hormones are transported in the blood bound to a plasma protein known as thyroxine-binding globulin.

Accepted Answer

A) True 
 B)False

Question 14

Exercise is often listed as a lifestyle factor that can slow down bone loss at old age. Which of the listed exercises is best for prevention of osteoporosis?

Accepted Answer

A)   water aerobics
B)   swimming
C)   lifting weights
D)   yoga practiceE) None of the above
F) A) and B)

Question 15

The anterior pituitary

Accepted Answer

A)   is also called the adenohypophysis
B)   develops from the hypothalamus
C)   only stores hypothalamic hormones; it does not produce its own hormones
D)   produces primarily steroid hormonesE) None of the above
F) A) and D) A

Question 16

Some hormones exhibit synergistic or antagonistic effects on each other. Which of the hormones below, do you think, exhibit synergy on blood sugar levels?

Accepted Answer

A)   epinephrine and insulin
B)   glucagon and insulin
C)   epinephrine and glucagon
D)   cortisol and insulinE) All of the above
F) B) and C)

Question 17

Each organ has a specific set of hormone receptors.

Accepted Answer

A) True 
 B)False  True

Question 18

The renin-angiotensin- aldosterone pathways is activated in which of the following conditions?

Accepted Answer

A)   dehydration
B)   increase in blood pressure
C)   decrease of K+ in extracellular fluid
D)   increase in blood volumeE) None of the above
F) C) and D)

Question 19

Which of the following anterior pituitary hormones stimulates the gonads to secrete progesterone in females or testosterone in males?

Accepted Answer

A)   follicle stimulating hormone
B)   luteinizing hormone
C)   prolactin
D)   progesteroneE) All of the above
F) A) and D)

Question 20

What is the function of the hormone somatostatin secreted by the hypothalamus?

Accepted Answer

A)   it inhibits secretion of growth hormone
B)   it inhibits production of luteinizing hormone
C)   it stimulates secretion of growth hormone
D)   somatostatin is not produced in the hypothalamus at allE) C) and D)
F) A) and B)

Exam 13: The Endocrine System

The hypothalamic releasing hormones

Correct AnswerverifiedShow Answer

Which of the hypothalamic hormones that control the anterior pituitary is NOT a peptide hormone?

Correct AnswerverifiedShow Answer

The heart is a part of circulatory system but it is also a part of endocrine system because it secretes hormone(s).

Correct AnswerverifiedTrue

Insulin like growth factors

Correct AnswerverifiedShow Answer

Both anterior and posterior pituitary lobes use portal circulation to deliver hormones to the peripheral endocrine organs

Correct AnswerverifiedShow Answer

An important hormone precursor that is formed in the skin when it is exposed to sunlight is

Correct AnswerverifiedShow Answer

The production of aldosterone

Correct AnswerverifiedShow Answer

Glucagon is a peptide hormone that increases blood glucose levels. Based on this information where in the cell would you search for glucagon receptors?

Correct AnswerverifiedShow Answer

Which of the following hormones interact with a receptor in the nucleus?

Correct AnswerverifiedShow Answer

One of the symptoms of excessive secretion of thyroid hormones is the increased heart rate. The mechanism of this is

Correct AnswerverifiedShow Answer

The health of the bone depends on the balance between bone resorption and bone deposition. What modifiable factors contribute to the maintenance of healthy bones in adulthood?

Correct AnswerverifiedShow Answer

Cells from the hypothalamus influence which lobe(s) of the pituitary gland via a portal system?

Correct AnswerverifiedShow Answer

Thyroid hormones are transported in the blood bound to a plasma protein known as thyroxine-binding globulin.

Correct AnswerverifiedShow Answer

Exercise is often listed as a lifestyle factor that can slow down bone loss at old age. Which of the listed exercises is best for prevention of osteoporosis?

Correct AnswerverifiedShow Answer

The anterior pituitary

Correct AnswerverifiedA

Some hormones exhibit synergistic or antagonistic effects on each other. Which of the hormones below, do you think, exhibit synergy on blood sugar levels?

Correct AnswerverifiedShow Answer

Each organ has a specific set of hormone receptors.

Correct AnswerverifiedTrue

The renin-angiotensin- aldosterone pathways is activated in which of the following conditions?

Correct AnswerverifiedShow Answer

Which of the following anterior pituitary hormones stimulates the gonads to secrete progesterone in females or testosterone in males?

Correct AnswerverifiedShow Answer

What is the function of the hormone somatostatin secreted by the hypothalamus?

Correct AnswerverifiedShow Answer

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