Question 1

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 2

Which is not a correct association of an endocrine gland with a hormone it secretes?

Accepted Answer

A)  Pancreas - glucagon
B)  Adrenal cortex - glucocorticoids
C)  Anterior lobe of the pituitary - melatonin
D)  Adrenal medulla - epinephrine
E)  Thyroid gland - calcitonin

Question 3

The secretory cells of the pineal gland are called

Accepted Answer

A)  melanocytes.
B)  pinealocytes.
C)  beta cells.
D)  chief cells.
E)  principal cells.

Question 4

Which is not characteristic of the endocrine system?

Accepted Answer

A)  Causes metabolic activity changes in target cells
B)  Slow reaction time
C)  Long-lasting effects
D)  Rapid,immediate recovery to prestimulation state
E)  Hormones are released into the bloodstream

Question 5

Which is not correct regarding growth hormone (GH) ?

Accepted Answer

A)  GH affects most body cells.
B)  GH stimulates cell growth and mitosis.
C)  GH is also known as somatotropin.
D)  GH stimulates the kidney to secrete somatomedin.
E)  GH is a tropic hormone.

Question 6

Which is not correct regarding the development of the endocrine system?

Accepted Answer

A)  The adrenal medulla develops from neural crest cells.
B)  The hypophyseal pouch and neurohypophyseal bud combine to form the pituitary gland.
C)  The thyroid gland becomes functional by weeks 10-12 of development.
D)  The thyroid gland initially forms as a mass that is part of the developing tongue.
E)  The adrenal cortex has portions derived from all three embryonic germ layers.

Question 7

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

Accepted Answer

A) True 
 B)False

Question 8

Hormones secreted by the thymus gland influence the differentiation,growth,and maturation of

Accepted Answer

A)  erythrocytes.
B)  T lymphocytes.
C)  osteocytes.
D)  muscle fibers.
E)  neurons.

Question 9

Where is the pituitary gland located?

Accepted Answer

A)  Within the sella turcica of the sphenoid bone
B)  Between the cerebrum and cerebellum,inferior to the occipital lobe
C)  On the posterior surface of the thyroid gland
D)  On the tracheal surface,inferior to the larynx
E)  Within the third ventricle of the brain

Question 10

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 11

Which region of the adrenal cortex synthesizes glucocorticoids?

Accepted Answer

A)  Zona reticularis
B)  Zona glucosa
C)  Zona papillarosa
D)  Zona fasciculata
E)  Zona glomerulosa

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 a tropic hormone?

Accepted Answer

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

Question 14

-This figure shows the endocrine system.Which number indicates the pineal gland?

Accepted Answer

A)  1
B)  2
C)  6
D)  7
E)  8

Question 15

-This figure shows the endocrine system.Which structure does number 10 indicate?

Accepted Answer

A)  Adrenal gland
B)  Thyroid gland
C)  Pituitary gland
D)  Pancreas
E)  Hypothalamus

Question 16

Pancreatic hormones are secreted directly into the pancreatic duct for rapid transport to the small intestine.

Accepted Answer

A) True 
 B)False

Question 17

Which are target organs for parathyroid hormone (PTH) ?

Accepted Answer

A)  Bone and muscle
B)  Stomach and large intestine
C)  Heart and liver
D)  Bone and kidney
E)  Skin and thyroid gland

Question 18

The release of hormones from the adrenal cortex is stimulated by

Accepted Answer

A)  thyroid hormone.
B)  adrenocorticotropic hormone.
C)  oxytocin.
D)  antidiuretic hormone.
E)  luteinizing hormone.

Question 19

-This figure shows the pituitary gland.Which number indicates the infundibulum?

Accepted Answer

A)  3
B)  5
C)  8
D)  9
E)  10

Question 20

Steroids,peptides,and nucleic acids are the three classes of hormones.

Accepted Answer

A) True 
 B)False

Exam 20: Endocrine System

Which are target organs for parathyroid hormone (PTH) ?

Correct AnswerverifiedShow Answer

Hormones secreted by the thymus gland influence the differentiation,growth,and maturation of

Correct AnswerverifiedShow Answer

Which is not correct regarding growth hormone (GH) ?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Where is the pituitary gland located?

Correct AnswerverifiedShow Answer

Which is not a tropic hormone?

Correct AnswerverifiedShow Answer

Which is not a correct association of an endocrine gland with a hormone it secretes?

Correct AnswerverifiedShow Answer

The secretory cells of the pineal gland are called

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

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

Correct AnswerverifiedShow Answer

Pancreatic hormones are secreted directly into the pancreatic duct for rapid transport to the small intestine.

Correct AnswerverifiedShow Answer

The release of hormones from the adrenal cortex is stimulated by

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

-This figure shows the pituitary gland.Which number indicates the infundibulum?

Correct AnswerverifiedShow Answer

-This figure shows the endocrine system.Which structure does number 10 indicate?

Correct AnswerverifiedShow Answer

Steroids,peptides,and nucleic acids are the three classes of hormones.

Correct AnswerverifiedShow Answer

Which is not correct regarding the development of the endocrine system?

Correct AnswerverifiedShow Answer

-This figure shows the endocrine system.Which number indicates the pineal gland?

Correct AnswerverifiedShow Answer

Which region of the adrenal cortex synthesizes glucocorticoids?

Correct AnswerverifiedShow Answer

Which is not characteristic of the endocrine system?

Correct AnswerverifiedShow Answer

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