Question 1

The hormone oxytocin is synthesized in the

Accepted Answer

A)  anterior pituitary.
B)  posterior pituitary.
C)  paraventricular nucleus.
D)  pineal gland.
E)  nucleus of the solitary tract.F) None of the above
G) A) and B)

Question 2

Which region of the adrenal cortex synthesizes glucocorticoids

Accepted Answer

A)  Zona reticularis
B)  Zona glucosa
C)  Zona papillarosa
D)  Zona fasciculata
E)  Zona glomerulosaF) A) and C)
G) A) and E)

Question 3

Generally,there are two main factors that determine the levels of a hormone in the blood.Explain what those factors are and provide examples of how they might increase or decrease a hormone's level.

Accepted Answer

Hormone synthesis is directly ...

Question 4

The function of each of the regulatory hormones of the hypothalamus is to trigger the release of a tropic hormone from the pituitary.

Accepted Answer

A) True 
 B)False

Question 5

Intracellular signaling pathways within target cells are organized such that

Accepted Answer

A)  each step allows for amplification of the signal where one molecule can activate many.
B)  each step involves one molecule activating or synthesizing exactly one other molecule for precise control.
C)  enzymes are used up and degraded after each individual reaction they catalyze.D) All of the above
E) None of the above

Question 6

The pancreas has both endocrine and exocrine functions.

Accepted Answer

A) True 
 B)False

Question 7

Within the adenylate cyclase signal transduction pathways of target cells,cAMP activates

Accepted Answer

A)  the G protein.
B)  adenylate cyclase.
C)  protein kinase.
D)  the receptor.
E)  transcription of a mRNA.F) C) and D)
G) A) and B)

Question 8

You are "shadowing" an endocrinologist who is examining a patient complaining of weakness,weight loss,and heat intolerance.The doctor points out the patient's obvious exophthalmos and asks for your diagnosis.What would you speculate is the patient's problem

Accepted Answer

A)  Hyposecretion of parathyroid hormone
B)  Hypersecretion of parathyroid hormone
C)  Hyposecretion of thyroid hormone
D)  Hypersecretion of thyroid hormone
E)  Hyposecretion of calcitoninF) All of the above
G) C) and D)

Question 9

Growth hormone is secreted by __________ cells in the anterior pituitary.

Accepted Answer

A)  somatotropic
B)  gonadotropic
C)  thyrotropic
D)  mammotropic
E)  corticotropicF) C) and D)
G) B) and E)

Question 10

The liver contains endocrine cells.

Accepted Answer

A) True 
 B)False

Question 11

-This figure shows the endocrine system.Which structure does number 4 indicate

Accepted Answer

A)  Adrenal gland
B)  Thyroid gland
C)  Pituitary gland
D)  Pancreas
E)  HypothalamusF) B) and C)
G) All of the above

Question 12

The binding of a hormone and a carrier protein is _______;a very ______ fraction of such a hormone in the blood is bound to a carrier at any one point in time.

Accepted Answer

A)  temporary;large
B)  temporary;small
C)  permanent;large
D)  permanent;smallE) A) and B)
F) A) and C)

Question 13

Parathyroid hormone release depends on blood levels of calcium.Such an endocrine reflex is said to be initiated by

Accepted Answer

A)  hormonal stimulation.
B)  humoral stimulation.
C)  neural stimulation.
D)  positive feedback stimulation.E) A) and C)
F) C) and D)

Question 14

Modified amino acids that act as hormones are referred to as ________ amines.

Accepted Answer

The answer of Modified amino acids that act as hormones...

Question 15

As someone starts to develop in puberty,most cells in their reproductive organs are probably starting to express

Accepted Answer

A)  more receptors for sex hormones.
B)  fewer receptors for sex hormones.C) A) and B)
D) undefined

Question 16

When eicosanoids bring about cellular changes within the cell from which they were formed,the process is called _________ stimulation.

Accepted Answer

The answer of When eicosanoids bring about cellular changes within...

Question 17

Which hormone induces its target cells to take up glucose,thereby lowering blood glucose levels

Accepted Answer

A)  Pancreatic polypeptide
B)  Somatostatin
C)  Glucagon
D)  Insulin
E)  SomatotropinF) C) and D)
G) A) and E)

Question 18

Until thyroid hormone needs to be secreted,precursors to it are stored in a viscous,protein-rich fluid within the center of thyroid follicles.This viscous fluid is known as _________.

Accepted Answer

The answer of Until thyroid hormone needs to be secreted,precursors...

Question 19

The pancreas is located ________ to the stomach,and it lies between the duodenum and the ________.

Accepted Answer

A)  anterior,liver
B)  anterior,spleen
C)  posterior,liver
D)  posterior,spleenE) All of the above
F) A) and B)

Question 20

Which of the following is false

Accepted Answer

A)  The pineal gland forms part of the epithalamus.
B)  The pineal gland is found within the diencephalon of the brain.
C)  The pineal gland secretes melatonin in a cyclical fashion.
D)  Melatonin makes us feel alert and awake.E) A) and B)
F) C) and D)

Exam 17: Endocrine System

You are "shadowing" an endocrinologist who is examining a patient complaining of weakness,weight loss,and heat intolerance.The doctor points out the patient's obvious exophthalmos and asks for your diagnosis.What would you speculate is the patient's problem

Correct AnswerverifiedShow Answer

The liver contains endocrine cells.

Correct AnswerverifiedShow Answer

Modified amino acids that act as hormones are referred to as ________ amines.

Correct AnswerverifiedShow Answer

Which of the following is false

Correct AnswerverifiedShow Answer

The pancreas has both endocrine and exocrine functions.

Correct AnswerverifiedShow Answer

Within the adenylate cyclase signal transduction pathways of target cells,cAMP activates

Correct AnswerverifiedShow Answer

Parathyroid hormone release depends on blood levels of calcium.Such an endocrine reflex is said to be initiated by

Correct AnswerverifiedShow Answer

Growth hormone is secreted by __________ cells in the anterior pituitary.

Correct AnswerverifiedShow Answer

Generally,there are two main factors that determine the levels of a hormone in the blood.Explain what those factors are and provide examples of how they might increase or decrease a hormone's level.

Correct AnswerverifiedHormone synthesis is directly ...View AnswerShow Answer

Which hormone induces its target cells to take up glucose,thereby lowering blood glucose levels

Correct AnswerverifiedShow Answer

The function of each of the regulatory hormones of the hypothalamus is to trigger the release of a tropic hormone from the pituitary.

Correct AnswerverifiedShow Answer

-This figure shows the endocrine system.Which structure does number 4 indicate

Correct AnswerverifiedShow Answer

As someone starts to develop in puberty,most cells in their reproductive organs are probably starting to express

Correct AnswerverifiedShow Answer

The pancreas is located ________ to the stomach,and it lies between the duodenum and the ________.

Correct AnswerverifiedShow Answer

Which region of the adrenal cortex synthesizes glucocorticoids

Correct AnswerverifiedShow Answer

The binding of a hormone and a carrier protein is _______;a very ______ fraction of such a hormone in the blood is bound to a carrier at any one point in time.

Correct AnswerverifiedShow Answer

When eicosanoids bring about cellular changes within the cell from which they were formed,the process is called _________ stimulation.

Correct AnswerverifiedShow Answer

The hormone oxytocin is synthesized in the

Correct AnswerverifiedShow Answer

Until thyroid hormone needs to be secreted,precursors to it are stored in a viscous,protein-rich fluid within the center of thyroid follicles.This viscous fluid is known as _________.

Correct AnswerverifiedShow Answer

Intracellular signaling pathways within target cells are organized such that

Correct AnswerverifiedShow Answer

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Hormone synthesis is directly ...
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The pancreas is located to the stomach,and it lies between the duodenum and the .

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The binding of a hormone and a carrier protein is _;a very fraction of such a hormone in the blood is bound to a carrier at any one point in time.

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