A&P Chapter 25: Endocrine Regulation Flashcards
1
Q
- The chemical messengers of the endocrine system are:
a. hormones.
b. neurotransmitters.
c. target tissues.
d. target organs.
A
- a. hormones.
p. 562
Chapter 25: Endocrine Regulation
2
Q
- Which of the following statements is true of the endocrine system?
a. The cells secreting the chemical messengers are called neurons.
b. The distance traveled by the chemical messengers is short (across a microscopic synapse).
c. Its effects are slow to appear, yet long-lasting.
d. None of the above.
A
- c. Its effects are slow to appear, yet long-lasting.
p. 563
Chapter 25: Endocrine Regulation
3
Q
- Which of the following is not an endocrine gland?
a. pineal
b. placenta
c. parathyroid
d. intestines
A
- d. intestines
p. 564
Chapter 25: Endocrine Regulation
4
Q
- The neuroendocrine system performs all of the following functions except:
a. communication.
b. control.
c. conduction.
d. integration.
A
- c. conduction.
p. 563
Chapter 25: Endocrine Regulation
5
Q
- The many hormones secreted by endocrine tissues can be classified simply as:
a. steroid or nonsteroid hormones.
b. anabolic or catabolic hormones.
c. sex or nonsex hormones.
d. tropic or hypotropic hormones.
A
- a. steroid or nonsteroid hormones.
p. 564
Chapter 25: Endocrine Regulation
6
Q
- Nonsteroid hormones include:
a. proteins.
b. peptides.
c. glycoproteins.
d. all of the above.
A
- d. all of the above.
p. 564
Chapter 25: Endocrine Regulation
7
Q
- Anabolic hormones:
a. target other endocrine glands and stimulate their growth and secretion.
b. target reproductive tissue.
c. stimulate anabolism in their target cells.
d. stimulate catabolism in their target cells.
A
- c. stimulate anabolism in their target cells.
p. 564
Chapter 25: Endocrine Regulation
8
Q
- The second messenger often involved in nonsteroid hormone action is:
a. cAMP.
b. mRNA.
c. ATP.
d. GTP.
A
- a. cAMP.
p. 568
Chapter 25: Endocrine Regulation
9
Q
- The control of hormone secretion is:
a. usually part of a negative feedback loop.
b. rarely part of a positive feedback loop.
c. both a and b.
d. none of the above.
A
- c. both a and b.
pp. 569 and 570
Chapter 25: Endocrine Regulation
10
Q
- When a small amount of hormone allows a second hormone to have its full effect on a target cell, the phenomenon is called:
a. synergism.
b. permissiveness.
c. antagonism.
d. combination.
A
- b. permissiveness.
p. 567
Chapter 25: Endocrine Regulation
11
Q
- ______ The nervous system functions at a much greater speed than the endocrine system.
True and False
A
- True
p. 563
Chapter 25: Endocrine Regulation
12
Q
- ______ The most widely used method of hormone classification is by chemical structure.
True and False
A
- True
p. 564
Chapter 25: Endocrine Regulation
13
Q
- ______ Steroid hormone receptors are usually attached in the plasma membrane of a target cell.
True and False
A
- False
p. 567
Chapter 25: Endocrine Regulation
14
Q
- ______ Production of too much hormone of a diseased gland is termed hyposecretion.
True and False
A
- False
p. 574
Chapter 25: Endocrine Regulation
15
Q
- ______ Input from the nervous system influences secretion of hormones.
True and False
A
- True
p. 571
Chapter 25: Endocrine Regulation
16
Q
- ______ Binds to specific plasma membrane receptor
a. Steroid hormone
b. Nonsteroid hormone
A
- b. Nonsteroid hormone
p. 570
Chapter 25: Endocrine Regulation