Question 1

Adrenocorticotropic hormone (ACTH) ________.

Accepted Answer

A)   causes the release of hormones from the adrenal medulla
B)   is secreted by the posterior pituitary
C)   is not a tropic hormone
D)   secretion is regulated by a hypothalamic regulatory hormoneE) A) and D)
F) B) and C)

Question 2

Most type 2 diabetics do NOT produce insulin.

Accepted Answer

A) True 
 B)False

Question 3

Compare the structure and function of endocrine and exocrine glands.

Accepted Answer

Endocrine glands are ductless glands tha...

Question 4

During an afternoon class,Lisa starts to feel hungry and worries that her blood sugar level may be dropping.Which hormone is helping to prevent a drop in blood sugar level?

Accepted Answer

A)   thyroxine
B)   glucagon
C)   insulin
D)   aldosteroneE) A) and D)
F) A) and C)

Question 5

Calcitonin is the main regulator of blood calcium levels.

Accepted Answer

A) True 
 B)False

Question 6

Bisphenol-A (BPA) is an endocrine disruptor that can leach out of certain plastics.It disrupts the normal function of the endocrine system my mimicking estrogen.Which of the following explains how persistent small amounts of BPA in the body can have effects?

Accepted Answer

A)   lock-and-key
B)   up-regulation
C)   down-regulation
D)   half-lifeE) A) and B)
F) A) and C)

Question 7

Why should the hypothalamus instead of the anterior pituitary be called the "master endocrine gland?"

Accepted Answer

Although the anterior pituitar...

Question 8

While visiting another country,you notice many individuals with iodine-deficiency goiters.Describe the feedback loop responsible for these goiters.

Accepted Answer

Upon detecting low levels of thyroid hor...

Question 9

John is a 26-year-old man who begins to notice a progressive enlargement of feet,hands,cranium,nose,and lower jaw bone.His doctor recommends a pituitary gland operation.What is the most likely diagnosis? Why?

Accepted Answer

The diagnosis is acromegaly.Th...

Question 10

Johanna is significantly shorter than normal for her age.Her doctor recommends treatment with a hormone before her growth plates ossify in her long bones.Which hormone is recommended?

Accepted Answer

A)   cortisol
B)   thyroid stimulating hormone
C)   parathyroid hormone
D)   growth hormoneE) C) and D)
F) None of the above

Question 11

At age 85,Lyle's immune system does not respond to vaccines as well as it did when he was younger.The atrophy of which endocrine gland is likely responsible for this?

Accepted Answer

A)   thyroid
B)   thymus
C)   adrenal
D)   anterior pituitaryE) All of the above
F) C) and D)

Question 12

Which of the following is NOT a category of endocrine gland stimulus?

Accepted Answer

A)   neural
B)   humoral
C)   enzymatic
D)   hormonalE) A) and B)
F) None of the above

Question 13

Iodine is an essential element required for the synthesis of thyroxine.

Accepted Answer

A) True 
 B)False

Question 14

Match the following:
-Hyposecretion of the thyroid in adults.

Accepted Answer

A)  Myxedema
B)  Cushing's disease
C)  Gigantism
D)  CretinismE) C) and D)
F) B) and D)

Question 15

Match the following:
-Epinephrine production.

Accepted Answer

A)  Neural stimulus
B)  Hormonal stimulus
C)  Humoral stimulusD) None of the above
E) All of the above

Question 16

Regulating hormones from the hypothalamus ________.

Accepted Answer

A)   enter the hepatic portal system, which feeds the pituitary
B)   first enter into the hypophyseal portal system
C)   enter venous circulation and travel to the heart, which pumps the hormone-containing blood to the pituitary
D)   travel by arteries to the pituitaryE) B) and D)
F) All of the above

Question 17

One of the least complicated of the endocrine control systems directly responds to changing blood levels of ions and nutrients.Which of the following describes this mechanism?

Accepted Answer

A)   carbohydrate oxidation
B)   protein synthesis
C)   catabolic inhibition
D)   humoral stimulationE) C) and D)
F) B) and C)

Question 18

Explain how antidiuretic hormone can help regulate an abnormal increase in solute concentration in the extracellular fluid.

Accepted Answer

The release of antidiuretic hormone can ...

Question 19

The posterior lobe of the pituitary gland is NOT a true endocrine gland because ________.

Accepted Answer

A)   embryonically it was an endocrine tissue, but in the adult human it is no longer functional
B)   it is only a hormone storage area that receives hormones from the hypothalamus for release
C)   it is unable to function as an endocrine tissue because it is actually part of the neural system due to its location
D)   it is strictly a part of the neural system and has little or nothing to do with hormonal releaseE) A) and B)
F) None of the above

Question 20

The single most important regulator of calcium levels in the blood is ________.

Accepted Answer

A)   thyroid hormone
B)   gonadotropic hormones
C)   calcitonin
D)   parathyroid hormoneE) None of the above
F) C) and D)

Exam 16: The Endocrine System

Johanna is significantly shorter than normal for her age.Her doctor recommends treatment with a hormone before her growth plates ossify in her long bones.Which hormone is recommended?

Correct AnswerverifiedShow Answer

Explain how antidiuretic hormone can help regulate an abnormal increase in solute concentration in the extracellular fluid.

Correct AnswerverifiedThe release of antidiuretic hormone can ...View AnswerShow Answer

During an afternoon class,Lisa starts to feel hungry and worries that her blood sugar level may be dropping.Which hormone is helping to prevent a drop in blood sugar level?

Correct AnswerverifiedShow Answer

Iodine is an essential element required for the synthesis of thyroxine.

Correct AnswerverifiedShow Answer

Match the following: -Epinephrine production.

Correct AnswerverifiedShow Answer

Which of the following is NOT a category of endocrine gland stimulus?

Correct AnswerverifiedShow Answer

One of the least complicated of the endocrine control systems directly responds to changing blood levels of ions and nutrients.Which of the following describes this mechanism?

Correct AnswerverifiedShow Answer

Match the following: -Hyposecretion of the thyroid in adults.

Correct AnswerverifiedShow Answer

Bisphenol-A (BPA) is an endocrine disruptor that can leach out of certain plastics.It disrupts the normal function of the endocrine system my mimicking estrogen.Which of the following explains how persistent small amounts of BPA in the body can have effects?

Correct AnswerverifiedShow Answer

John is a 26-year-old man who begins to notice a progressive enlargement of feet,hands,cranium,nose,and lower jaw bone.His doctor recommends a pituitary gland operation.What is the most likely diagnosis? Why?

Correct AnswerverifiedThe diagnosis is acromegaly.Th...View AnswerShow Answer

At age 85,Lyle's immune system does not respond to vaccines as well as it did when he was younger.The atrophy of which endocrine gland is likely responsible for this?

Correct AnswerverifiedShow Answer

Compare the structure and function of endocrine and exocrine glands.

Correct AnswerverifiedEndocrine glands are ductless glands tha...View AnswerShow Answer

The posterior lobe of the pituitary gland is NOT a true endocrine gland because ________.

Correct AnswerverifiedShow Answer

Calcitonin is the main regulator of blood calcium levels.

Correct AnswerverifiedShow Answer

While visiting another country,you notice many individuals with iodine-deficiency goiters.Describe the feedback loop responsible for these goiters.

Correct AnswerverifiedUpon detecting low levels of thyroid hor...View AnswerShow Answer

Most type 2 diabetics do NOT produce insulin.

Correct AnswerverifiedShow Answer

Regulating hormones from the hypothalamus ________.

Correct AnswerverifiedShow Answer

Why should the hypothalamus instead of the anterior pituitary be called the "master endocrine gland?"

Correct AnswerverifiedAlthough the anterior pituitar...View AnswerShow Answer

Adrenocorticotropic hormone (ACTH) ________.

Correct AnswerverifiedShow Answer

The single most important regulator of calcium levels in the blood is ________.

Correct AnswerverifiedShow Answer

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The release of antidiuretic hormone can ...
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The diagnosis is acromegaly.Th...
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Correct Answer
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Correct Answer
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Endocrine glands are ductless glands tha...
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Correct Answer
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Correct Answer
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Upon detecting low levels of thyroid hor...
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Although the anterior pituitar...
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Correct Answer
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