Question 1

________ are chemical messengers that are released in one tissue and transported in the bloodstream to alter the activities of specific cells in other tissues.

Accepted Answer

A)  Hormones
B)  Neuropeptides
C)  Neurotransmitters
D)  Paracrine factors
E)  None of the answers is correct.

Question 2

Hormonal actions on cells can affect all of the following except

Accepted Answer

A)  increase levels of cAMP.
B)  decrease levels of calcium ions.
C)  increase ATP production.
D)  decrease gene transcription.
E)  decrease hormone release through negative feedback.

Question 3

Name the hormones secreted by the heart.

Accepted Answer

A)  erythropoietin
B)  natriuretic peptides
C)  antidiuretic hormone
D)  thrombopoietin
E)  thymosin

Question 4

Identify the nine pituitary hormones and their target tissues.

Accepted Answer

The hormones produced and released by th...

Question 5

Hormones that regulate the male and female reproductive organs are collectively called

Accepted Answer

A)  gonadotropins.
B)  releasing hormones.
C)  inhibiting hormones.
D)  eicosanoids.
E)  steroids.

Question 6

The hypothalamus is an important organ in both the ________ and ________ systems.

Accepted Answer

A)  endocrine; nervous
B)  cardiovascular; nervous
C)  renal; endocrine
D)  nervous; renal
E)  endocrine; lymphatic

Question 7

List the hypothalamic releasing hormones.

Accepted Answer

The hypothalamic releasing hormones are ...

Question 8

When blood glucose levels rise,

Accepted Answer

A)  insulin is released.
B)  glucagon is released.
C)  peripheral cells take up less glucose.
D)  protein synthesis decreases.
E)  peripheral cells break down glycogen.

Question 9

Which of the following is a known effect of thyroid hormone on peripheral tissues?

Accepted Answer

A)  increased oxygen consumption
B)  increased heart rate
C)  increased sensitivity to adrenergic stimulation
D)  increased body temperature
E)  All of the answers are correct.

Question 10

TSH plays a key role in ________ of thyroid hormones.

Accepted Answer

A)  only the inhibition
B)  only the production
C)  only the release
D)  both inhibition and production
E)  both production and release

Question 11

The zona fasciculata of the adrenal cortex produces

Accepted Answer

A)  androgens.
B)  glucocorticoids.
C)  mineralocorticoids.
D)  epinephrine.
E)  norepinephrine.

Question 12

Proper growth does not require which of the following hormones?

Accepted Answer

A)  thyroid hormone
B)  calcitriol
C)  insulin
D)  estrogen
E)  MSH

Question 13

Two hormones that have additive effects are called

Accepted Answer

A)  agonists.
B)  antagonists.
C)  synergists.
D)  co-factors.
E)  permissive.

Question 14

Cite the hormones secreted by each region of an adrenal gland.

Accepted Answer

The two hormone-secreting regions of an ...

Question 15

Norepinephrine and epinephrine are considered to be ________ when released into the bloodstream,but ________ when released at synapses.

Accepted Answer

A)  hormones; neurotransmitters
B)  neuropeptides; neurotransmitters
C)  neurotransmitters; hormones
D)  neurotransmitters; neuropeptides
E)  neuropeptides; neurohormones

Question 16

The intracellular protein ________ binds calcium ions.This complex can then activate enzymes.

Accepted Answer

A)  receptor
B)  cAMP
C)  G protein
D)  calmodulin
E)  ATP

Question 17

All of the following are true of the nervous system,except that it doesn't

Accepted Answer

A)  respond rapidly to stimuli.
B)  respond specifically to stimuli.
C)  communicate by the release of neurotransmitters.
D)  respond with motor output.
E)  function independently of the endocrine system.

Question 18

What effect would increased cortisol levels have on blood glucose level?

Accepted Answer

A)  Increased cortisol levels would increase blood glucose levels.
B)  Increased cortisol levels would decrease blood glucose levels.
C)  Increased cortisol levels would not affect blood glucose levels.

Question 19

Which of the following hormones may lead to acromegaly if hypersecreted after closure of the epiphyseal plates?

Accepted Answer

A)  cortisol
B)  parathyroid hormone
C)  insulin
D)  growth hormone
E)  epinephrine

Question 20

Cells of the adrenal cortex produce

Accepted Answer

A)  epinephrine.
B)  norepinephrine.
C)  aldosterone.
D)  ACTH.
E)  angiotensin.

Exam 16: The Endocrine System

Cells of the adrenal cortex produce

Correct AnswerverifiedShow Answer

Which of the following hormones may lead to acromegaly if hypersecreted after closure of the epiphyseal plates?

Correct AnswerverifiedShow Answer

Cite the hormones secreted by each region of an adrenal gland.

Correct AnswerverifiedThe two hormone-secreting regions of an ...View AnswerShow Answer

Norepinephrine and epinephrine are considered to be ________ when released into the bloodstream,but ________ when released at synapses.

Correct AnswerverifiedShow Answer

Hormonal actions on cells can affect all of the following except

Correct AnswerverifiedShow Answer

Proper growth does not require which of the following hormones?

Correct AnswerverifiedShow Answer

Which of the following is a known effect of thyroid hormone on peripheral tissues?

Correct AnswerverifiedShow Answer

The zona fasciculata of the adrenal cortex produces

Correct AnswerverifiedShow Answer

The intracellular protein ________ binds calcium ions.This complex can then activate enzymes.

Correct AnswerverifiedShow Answer

Identify the nine pituitary hormones and their target tissues.

Correct AnswerverifiedThe hormones produced and released by th...View AnswerShow Answer

When blood glucose levels rise,

Correct AnswerverifiedShow Answer

________ are chemical messengers that are released in one tissue and transported in the bloodstream to alter the activities of specific cells in other tissues.

Correct AnswerverifiedShow Answer

List the hypothalamic releasing hormones.

Correct AnswerverifiedThe hypothalamic releasing hormones are ...View AnswerShow Answer

TSH plays a key role in ________ of thyroid hormones.

Correct AnswerverifiedShow Answer

Two hormones that have additive effects are called

Correct AnswerverifiedShow Answer

Hormones that regulate the male and female reproductive organs are collectively called

Correct AnswerverifiedShow Answer

Name the hormones secreted by the heart.

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All of the following are true of the nervous system,except that it doesn't

Correct AnswerverifiedShow Answer

What effect would increased cortisol levels have on blood glucose level?

Correct AnswerverifiedShow Answer

The hypothalamus is an important organ in both the ________ and ________ systems.

Correct AnswerverifiedShow Answer

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The two hormone-secreting regions of an ...
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Norepinephrine and epinephrine are considered to be when released into the bloodstream,but when released at synapses.

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The hormones produced and released by th...
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The hypothalamic releasing hormones are ...
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The hypothalamus is an important organ in both the and systems.

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