Question 1

Which is not a tropic hormone?

Accepted Answer

A)  Thyroid-stimulating hormone
B)  Melanocyte-stimulating hormone
C)  Adrenocorticotropic hormone
D)  Follicle-stimulating hormone
E)  Prolactin

Question 2

Which hormones are collectively called the gonadotropins?

Accepted Answer

A)  Prolactin and oxytocin
B)  Antidiuretic hormone and oxytocin
C)  Follicle-stimulating hormone and luteinizing hormone
D)  Follicle-stimulating hormone and melanocyte-stimulating hormone
E)  Thyroid-stimulating hormone and adrenocorticotropic hormone

Question 3

Which hormone induces ovulation?

Accepted Answer

A)  Luteinizing hormone
B)  Prolactin
C)  Follicle-stimulating hormone
D)  Growth hormone
E)  Oxytocin

Question 4

Which is not correct regarding the hypothalamo-hypophyseal portal system?

Accepted Answer

A)  The system includes two capillary plexuses.
B)  The system carries venous blood.
C)  The system is the circulatory connection between the hypothalamus and the posterior pituitary.
D)  The system is drained by the anterior hypophyseal veins.
E)  The system transports hypothalamic hormones.

Question 5

The posterior pituitary does not produce its own hormones but stores hormones produced by the hypothalamus.

Accepted Answer

A) True 
 B)False

Question 6

In addition to secreting hormones,the pancreas also produces

Accepted Answer

A)  white blood cells.
B)  sodium chloride.
C)  pancreatic juice.
D)  endorphins.
E)  prostaglandins.

Question 7

Which is not characteristic of the endocrine system?

Accepted Answer

A)  Target cells have hormone receptors
B)  Slow reaction time
C)  Long-lasting effects
D)  Rapid,immediate recovery to prestimulation state
E)  Hormones are released into the bloodstream

Question 8

The thymus gland grows rapidly during puberty,reaching its maximum size when a person is about 21 years of age.

Accepted Answer

A) True 
 B)False

Question 9

The three distinct areas of the anterior pituitary are the

Accepted Answer

A)  pars nervosa,pars distalis,and pars intermedia.
B)  pars distalis,pars intermedia,and pars tuberalis.
C)  pars tuberalis,median eminence,and pars intermedia.
D)  pars tuberalis,pars distalis,and pars nervosa.
E)  pars intermedia,median eminence,and pars distalis.

Question 10

The metabolic condition called ___________ results from the destruction of the beta cells in the pancreas due to an autoimmune response.

Accepted Answer

A)  Type 2 diabetes
B)  gestational diabetes
C)  beta cell diabetes
D)  insulin-independent diabetes mellitus
E)  Type 1 diabetes

Question 11

The target cells for melanocyte-stimulating hormone are the cells that produce melanin in the skin.

Accepted Answer

A) True 
 B)False

Question 12

Which endocrine gland is small,cone-shaped,and attached to the posterior region of the epithalamus?

Accepted Answer

A)  Hypothalamus
B)  Thymus gland
C)  Pancreas
D)  Pineal gland
E)  Pituitary gland

Question 13

Which is not correct regarding the adrenal medulla?

Accepted Answer

A)  It is derived from embryonic neural crest cells.
B)  It is red-brown in color due to its extensive vascularization.
C)  It consists of clusters of cells called oxyphil cells.
D)  It secretes the hormones epinephrine and norepinephrine.
E)  Its cells are innervated by preganglionic sympathetic axons.

Question 14

How does aging affect the endocrine system?

Accepted Answer

A)  Secretory activity of endocrine glands decreases.
B)  Normal levels of hormones,particularly growth hormone and sex hormones,often decrease.
C)  Aging reduces the efficiency of endocrine system functions.
D)  Endocrine system imbalances can lead to weight gain or muscle loss.
E)  All of the choices are correct.

Question 15

The secretion of ___________ by the anterior pituitary gland is not under the control of a hypothalamic regulatory hormone.

Accepted Answer

A)  growth hormone
B)  prolactin
C)  thyroid-stimulating hormone
D)  follicle-stimulating hormone
E)  melanocyte-stimulating hormone

Question 16

Somatostatin is also known as

Accepted Answer

A)  somatotropin.
B)  growth hormone-releasing hormone.
C)  growth hormone-inhibiting hormone.
D)  thyrotropin.
E)  erythropoietin.

Question 17

Which hormone is secreted by modified cells in the heart wall in response to high blood volume or pressure?

Accepted Answer

A)  Renin
B)  Angiotensin I
C)  Angiotensin II
D)  Atriopeptin
E)  Erythropoietin

Question 18

Which of the following situations is most likely to result in stimulation of the adrenal medulla by the hypothalamus?

Accepted Answer

A)  Running from a bear
B)  Relaxing after a big meal
C)  Walking on a beach
D)  Taking an afternoon nap

Question 19

In response to high blood glucose,the pancreas releases insulin to enable glucose to enter body cells.When the blood glucose level returns to normal,insulin release stops.This is an example of regulation by

Accepted Answer

A)  endocrine dysplasia.
B)  negative feedback.
C)  positive feedback.
D)  neural regulation.
E)  somatic regulation.

Question 20

Parathyroid hormone stimulates calcitriol synthesis in the kidney and is therefore a tropic hormone.

Accepted Answer

A) True 
 B)False

Exam 20: Endocrine System

Which hormone induces ovulation?

Correct AnswerverifiedShow Answer

Which is not a tropic hormone?

Correct AnswerverifiedShow Answer

How does aging affect the endocrine system?

Correct AnswerverifiedShow Answer

The metabolic condition called ___________ results from the destruction of the beta cells in the pancreas due to an autoimmune response.

Correct AnswerverifiedShow Answer

The posterior pituitary does not produce its own hormones but stores hormones produced by the hypothalamus.

Correct AnswerverifiedShow Answer

The thymus gland grows rapidly during puberty,reaching its maximum size when a person is about 21 years of age.

Correct AnswerverifiedShow Answer

Which is not characteristic of the endocrine system?

Correct AnswerverifiedShow Answer

Which hormone is secreted by modified cells in the heart wall in response to high blood volume or pressure?

Correct AnswerverifiedShow Answer

Somatostatin is also known as

Correct AnswerverifiedShow Answer

Which endocrine gland is small,cone-shaped,and attached to the posterior region of the epithalamus?

Correct AnswerverifiedShow Answer

Which hormones are collectively called the gonadotropins?

Correct AnswerverifiedShow Answer

The target cells for melanocyte-stimulating hormone are the cells that produce melanin in the skin.

Correct AnswerverifiedShow Answer

Which of the following situations is most likely to result in stimulation of the adrenal medulla by the hypothalamus?

Correct AnswerverifiedShow Answer

Which is not correct regarding the adrenal medulla?

Correct AnswerverifiedShow Answer

Parathyroid hormone stimulates calcitriol synthesis in the kidney and is therefore a tropic hormone.

Correct AnswerverifiedShow Answer

The secretion of ___________ by the anterior pituitary gland is not under the control of a hypothalamic regulatory hormone.

Correct AnswerverifiedShow Answer

In addition to secreting hormones,the pancreas also produces

Correct AnswerverifiedShow Answer

In response to high blood glucose,the pancreas releases insulin to enable glucose to enter body cells.When the blood glucose level returns to normal,insulin release stops.This is an example of regulation by

Correct AnswerverifiedShow Answer

The three distinct areas of the anterior pituitary are the

Correct AnswerverifiedShow Answer

Which is not correct regarding the hypothalamo-hypophyseal portal system?

Correct AnswerverifiedShow Answer

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