A&P Chapter 22: Autonomic Nervous System Flashcards
1
Q
- Somatic motor and autonomic pathways share all of the following except:
a. direction of impulse conduction.
b. effectors located outside the CNS.
c. number of neurons between the CNS and effector.
d. acetylcholine as a possible neurotransmitter.
A
- c. number of neurons between the CNS and effector.
p. 505
Chapter 22: Autonomic Nervous System
2
Q
- Within the sympathetic chain ganglion, the preganglionic fiber may:
a. synapse with a sympathetic postganglionic neuron.
b. send an ascending branch through the sympathetic trunk.
c. pass through chain ganglia and synapse in a collateral ganglion.
d. all of the above.
A
- d. all of the above.
p. 507
Chapter 22: Autonomic Nervous System
3
Q
- Beta receptors bind with:
a. acetylcholine.
b. norepinephrine.
c. toxin muscarine.
d. none of the above.
A
- b. norepinephrine.
p. 509
Chapter 22: Autonomic Nervous System
4
Q
- Which of the following is not an example of sympathetic stimulation?
a. decreased heart rate
b. decreased secretion of the pancreas
c. constriction of the urinary sphincters
d. dilation of skeletal muscle blood vessels
A
- a. decreased heart rate
p. 514
Chapter 22: Autonomic Nervous System
5
Q
- “Fight or flight” physiologic changes include all of the following except:
a. increased conversion of glycogen to glucose.
b. constriction of respiratory airways.
c. increased perspiration.
d. dilation of blood vessels in skeletal muscles.
A
- b. constriction of respiratory airways
p. 515
Chapter 22: Autonomic Nervous System
6
Q
- ______ The enteric nervous system is a specialized part of the ANS that controls visceral effectors in the gut wall.
True or False
A
- True
p. 505
Chapter 22: Autonomic Nervous System
7
Q
- ______ Many autonomic effectors are dually innervated.
True or False
A
- True
pp. 504-505
Chapter 22: Autonomic Nervous System
8
Q
- ______ The sympathetic division is also called the thoracolumbar division.
True or False
A
- True
p. 506
Chapter 22: Autonomic Nervous System
9
Q
- ______ The sympathetic division is the dominant controller of the body at rest.
True or False
A
- False
p. 516
Chapter 22: Autonomic Nervous System
10
Q
- ______ Sympathetic responses are usually widespread, involving many organ systems at once.
True or False
A
- True
p. 507
Chapter 22: Autonomic Nervous System
11
Q
- In the sympathetic division, preganglionic neurons are relatively (short or long) and postganglionic neurons are relatively (short or long).
A
- short and then long
p. 507
Chapter 22: Autonomic Nervous System
12
Q
- Norepinephrine affects visceral effectors by first binding to (cholinergic or adrenergic) receptors in their plasma membranes.
A
- adrenergic
p. 509
Chapter 22: Autonomic Nervous System
13
Q
- The effect of a neurotransmitter on any postsynaptic cell is determined by the (characteristics of the receptor or neurotransmitter).
A
- characteristics of the receptor
p. 509
Chapter 22: Autonomic Nervous System
14
Q
- A (nicotinic or beta) receptor is a main type of cholinergic receptor.
A
- nicotinic
p. 510
Chapter 22: Autonomic Nervous System
15
Q
- The action of acetylcholine is (slowly or quickly) terminated when hydrolyzed by the enzyme acetylcholinesterase.
A
- quickly
p. 511
Chapter 22: Autonomic Nervous System
16
Q
- _______ Both sympathetic and parasympathetic divisions are tonically active, meaning they continually conduct impulses to autonomic effectors.
True or False
A
- True
p. 512
Chapter 22: Autonomic Nervous System
