Question 1

Which of these statements describes hormones

Accepted Answer

A)  All are regulated by the hypothalamus.
B)  They are secreted by endocrine glands through ducts into the blood.
C)  They must combine with specific receptors on their target cells in order to exert their effects.
D)  They are produced in a gland and act on target cells in different tissues.E) A) and D)
F) None of the above

Question 2

Oxytocin and vasopressin are carried in the hypothalamic-hypophyseal portal system.

Accepted Answer

A) True 
 B)False

Question 3

One target cell receptor may bind with more than one type of hormone.

Accepted Answer

A) True 
 B)False

Question 4

Match the hormones, labelled a. through d., with the characteristics.
-synthesized by the endoplasmic reticulum-Golgi complex system

Accepted Answer

A)  steroids
B)  catecholamines
C)  peptides
D)  thyroid hormoneE) B) and C)
F) A) and D)

Question 5

Which of these statements does NOT apply to peptide hormones

Accepted Answer

A)  They include adrenal cortex hormones.
B)  They include insulin.
C)  They are stored within secretory granules.
D)  They are secreted from endocrine glands.E) A) and B)
F) A) and C)

Question 6

Growth hormone promotes closure of the epiphyseal plate at adolescence.

Accepted Answer

A) True 
 B)False

Question 7

Which of these statements refers to bone cells

Accepted Answer

A)  Osteoclasts are cells that make new ones.
B)  Chondrocytes are some that are affected by prolactin-inhibiting hormone.
C)  Osteoclasts are the types that dissolve bone.
D)  Osteoblasts are mature, nongrowing bone.E) A) and D)
F) A) and C)

Question 8

Melatonin is secreted by the ____________________.

Accepted Answer

The answer of Melatonin is secreted by the ____________________....

Question 9

Which of the following can occur in the process of negative feedback

Accepted Answer

A)  TSH inhibits thyroid hormone secretion by the thyroid gland.
B)  Thyroid hormone inhibits TSH secretion by the anterior pituitary.
C)  Thyroid hormone directly inhibits further thyroid hormone secretion by the thyroid gland.
D)  TRH inhibits TSH secretion by the anterior pituitary.E) A) and B)
F) B) and D)

Question 10

Growth hormone signals which of the following parts in a long bone to influence its length

Accepted Answer

A)  articular cartilage
B)  endosteum
C)  epiphyseal plate
D)  medullary cavityE) A) and B)
F) All of the above

Question 11

The hypothalamus synthesizes and regulates the release of hormones from the posterior pituitary.

Accepted Answer

A) True 
 B)False

Question 12

Which of these statements describes growth hormone

Accepted Answer

A)  Levels in the blood are directly correlated with the rate of growth throughout life.
B)  It stimulates the secretion of somatomedins.
C)  It stimulates osteoclast activity.
D)  Excessive levels in adults will cause the disease called gigantism.E) All of the above
F) B) and C)

Question 13

Which of these statements describes tropic hormones

Accepted Answer

A)  They may stimulate the secretion of other hormones.
B)  They are secreted only by the hypothalamus.
C)  They are all produced in the posterior pituitary gland.
D)  Primary hyposecretion occurs when an endocrine gland isn't receiving enough of its tropic hormone.E) A) and B)
F) None of the above

Question 14

Dwarfism may be due to growth hormone deficiency in adults.

Accepted Answer

A) True 
 B)False

Question 15

Match the types of bone cells, labelled a. through c., with their descriptions.
-form bone

Accepted Answer

A)  osteocytes
B)  osteoblasts
C)  osteoclastsD) All of the above
E) None of the above

Question 16

Which of these statements describes hormones secreted by endocrine glands

Accepted Answer

A)  They are secreted into the ducts.
B)  They are all controlled by the nervous system.
C)  They all can pass through the plasma membrane.
D)  They regulate cellular and organ function at a distance.E) A) and B)
F) A) and C)

Question 17

Which one of these hormones signals the kidneys to control water balance

Accepted Answer

A)  vasopressin
B)  ACTH
C)  TRH
D)  somatostatinE) None of the above
F) B) and C)

Question 18

Match the systems, labelled a. through c. with their characteristics. (Options may be used more than once or not at all.) 
-Duration of action is brief (milliseconds) .

Accepted Answer

A)  the endocrine system
B)  the nervous system
C)  both the endocrine and nervous systemsD) B) and C)
E) All of the above

Question 19

Epinephrine produces diverse effects on the activity of smooth muscle.

Accepted Answer

A) True 
 B)False

Question 20

Which characteristic is NOT shared by both lipophilic and hydrophilic hormones

Accepted Answer

A)  amplification of hormone actions in the target cell
B)  passing through the lipid membrane barriers of their target cells
C)  synergistic actions
D)  antagonistic actionsE) A) and D)
F) All of the above

Exam 5: Principles of Endocrinology: The Central Endocrine Glands

Growth hormone promotes closure of the epiphyseal plate at adolescence.

Correct AnswerverifiedShow Answer

Which of these statements describes hormones

Correct AnswerverifiedShow Answer

One target cell receptor may bind with more than one type of hormone.

Correct AnswerverifiedShow Answer

Oxytocin and vasopressin are carried in the hypothalamic-hypophyseal portal system.

Correct AnswerverifiedShow Answer

Match the types of bone cells, labelled a. through c., with their descriptions. -form bone

Correct AnswerverifiedShow Answer

Melatonin is secreted by the ____________________.

Correct AnswerverifiedShow Answer

The hypothalamus synthesizes and regulates the release of hormones from the posterior pituitary.

Correct AnswerverifiedShow Answer

Which of these statements describes growth hormone

Correct AnswerverifiedShow Answer

Which one of these hormones signals the kidneys to control water balance

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Which of these statements describes tropic hormones

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Which of these statements refers to bone cells

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Dwarfism may be due to growth hormone deficiency in adults.

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Which of the following can occur in the process of negative feedback

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Which characteristic is NOT shared by both lipophilic and hydrophilic hormones

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Match the hormones, labelled a. through d., with the characteristics. -synthesized by the endoplasmic reticulum-Golgi complex system

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Epinephrine produces diverse effects on the activity of smooth muscle.

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Which of these statements does NOT apply to peptide hormones

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Match the systems, labelled a. through c. with their characteristics. (Options may be used more than once or not at all.) -Duration of action is brief (milliseconds) .

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Growth hormone signals which of the following parts in a long bone to influence its length

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Which of these statements describes hormones secreted by endocrine glands

Correct AnswerverifiedShow Answer

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