Question 1

Paracrine substances called ______ have powerful, regulating effects on cellular responses to hormones.

Accepted Answer

The answer of Paracrine substances called ______ have powerful, regulating...

Question 2

ADH and oxytocin are secreted by

Accepted Answer

A)   neuromuscular cells.
B)   neurons.
C)   neuroglia.
D)   neurosecretory cells.

Question 3

Compared to the nervous system, the endocrine system

Accepted Answer

A)   does not use receptors.
B)   may have a longer lasting effect.
C)   takes only seconds.
D)   is not essential to life.

Question 4

Which of the following statements is correct with respect to T3 and T4?

Accepted Answer

A)   T4 has a higher free concentration in the plasma.
B)   T4 is more important physiologically.
C)   About one third of T4 is converted to T3 in peripheral tissues.
D)   T4 is more potent.

Question 5

Nonsteroid hormones include peptides, proteins, glycoproteins, and amines.

Accepted Answer

A) True 
 B)False

Question 6

Type 2 diabetes mellitus results from

Accepted Answer

A)   a deficiency of insulin.
B)   insensitivity of cells to insulin.
C)   a deficiency of insulin and insensitivity of cells to insulin.
D)   an infection.

Question 7

Hormones from the adrenal medulla increase

Accepted Answer

A)   blood pressure.
B)   heart rate.
C)   breathing rate.
D)   all of the above.

Question 8

Simple goiter is most prevalent where the soil lacks

Accepted Answer

A)   organic matter.
B)   vitamins.
C)   iodine.
D)   potassium.

Question 9

Hyperparathyroidism

Accepted Answer

A)   stimulates excessive osteoclast activity, softening bones.
B)   is most often caused by a tumor.
C)   increases risk of spontaneous fractures.
D)   all of the above.

Question 10

Infantile hypothyroidism results from

Accepted Answer

A)   a deficiency of thyroid hormones at birth.
B)   hyperthyroidism in an adult.
C)   hypothyroidism in an adult.
D)   lack of prolactin.

Question 11

The nervous system releases neurotransmitters into synapses. In contrast, the endocrine system releases _______ into the bloodstream.

Accepted Answer

The answer of The nervous system releases neurotransmitters into synapses....

Question 12

The pancreas functions as part of the endocrine system and as a part of the ______ system.

Accepted Answer

The answer of The pancreas functions as part of the...

Question 13

With age,

Accepted Answer

A)   levels of GH increase but of ADH decrease.
B)   levels of GH decrease but of ADH increase.
C)   levels of GH and ADH both decrease.
D)   levels of GH and ADH both increase.

Question 14

The secretion of parathyroid hormone is controlled primarily by the

Accepted Answer

A)   hypothalamus.
B)   concentration of blood calcium.
C)   thyroid gland.
D)   pituitary gland.

Question 15

Jerry drinks a few beers and soon has to urinate. The alcohol has

Accepted Answer

A)   inhibited secretion of ADH.
B)   stimulated secretion of ADH.
C)   inhibited secretion of ACTH.
D)   stimulated secretion of ACTH.

Question 16

Nerve fibers in the posterior lobe of the pituitary gland secrete

Accepted Answer

A)   thyroid-stimulating hormone.
B)   adrenocorticotropic hormone.
C)   growth hormone.
D)   antidiuretic hormone.

Question 17

__________ controls hormone concentrations.

Accepted Answer

A)   Positive feedback
B)   Negative feedback
C)   Muscle contraction
D)   Exposure to sun

Question 18

A tropic hormone prevents endocrine glands from releasing their hormones, thereby maintaining homeostasis.

Accepted Answer

A) True 
 B)False

Question 19

Growth hormone signals the release of

Accepted Answer

A)   TGF.
B)   PTH.
C)   IGF-1.
D)   FSH.

Question 20

A hormone whose effects last a long time has a ____ half-life.

Accepted Answer

The answer of A hormone whose effects last a long...

Exam 13: Endocrine System

Hyperparathyroidism

Correct AnswerverifiedShow Answer

__________ controls hormone concentrations.

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Hormones from the adrenal medulla increase

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The pancreas functions as part of the endocrine system and as a part of the ______ system.

Correct AnswerverifiedShow Answer

The nervous system releases neurotransmitters into synapses. In contrast, the endocrine system releases _______ into the bloodstream.

Correct AnswerverifiedShow Answer

Paracrine substances called ______ have powerful, regulating effects on cellular responses to hormones.

Correct AnswerverifiedShow Answer

ADH and oxytocin are secreted by

Correct AnswerverifiedShow Answer

Nerve fibers in the posterior lobe of the pituitary gland secrete

Correct AnswerverifiedShow Answer

Nonsteroid hormones include peptides, proteins, glycoproteins, and amines.

Correct AnswerverifiedShow Answer

Type 2 diabetes mellitus results from

Correct AnswerverifiedShow Answer

Growth hormone signals the release of

Correct AnswerverifiedShow Answer

The secretion of parathyroid hormone is controlled primarily by the

Correct AnswerverifiedShow Answer

Jerry drinks a few beers and soon has to urinate. The alcohol has

Correct AnswerverifiedShow Answer

Compared to the nervous system, the endocrine system

Correct AnswerverifiedShow Answer

Which of the following statements is correct with respect to T3 and T4?

Correct AnswerverifiedShow Answer

A tropic hormone prevents endocrine glands from releasing their hormones, thereby maintaining homeostasis.

Correct AnswerverifiedShow Answer

A hormone whose effects last a long time has a ____ half-life.

Correct AnswerverifiedShow Answer

With age,

Correct AnswerverifiedShow Answer

Infantile hypothyroidism results from

Correct AnswerverifiedShow Answer

Simple goiter is most prevalent where the soil lacks

Correct AnswerverifiedShow Answer

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Which of the following statements is correct with respect to T₃ and T₄?

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