A&P Chapter 22: Autonomic Nervous System Flashcards
- 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.
- c. number of neurons between the CNS and effector.
p. 505
Chapter 22: Autonomic Nervous System
- 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.
- d. all of the above.
p. 507
Chapter 22: Autonomic Nervous System
- Beta receptors bind with:
a. acetylcholine.
b. norepinephrine.
c. toxin muscarine.
d. none of the above.
- b. norepinephrine.
p. 509
Chapter 22: Autonomic Nervous System
- 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. decreased heart rate
p. 514
Chapter 22: Autonomic Nervous System
- “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.
- b. constriction of respiratory airways
p. 515
Chapter 22: Autonomic Nervous System
- ______ The enteric nervous system is a specialized part of the ANS that controls visceral effectors in the gut wall.
True or False
- True
p. 505
Chapter 22: Autonomic Nervous System
- ______ Many autonomic effectors are dually innervated.
True or False
- True
pp. 504-505
Chapter 22: Autonomic Nervous System
- ______ The sympathetic division is also called the thoracolumbar division.
True or False
- True
p. 506
Chapter 22: Autonomic Nervous System
- ______ The sympathetic division is the dominant controller of the body at rest.
True or False
- False
p. 516
Chapter 22: Autonomic Nervous System
- ______ Sympathetic responses are usually widespread, involving many organ systems at once.
True or False
- True
p. 507
Chapter 22: Autonomic Nervous System
- In the sympathetic division, preganglionic neurons are relatively (short or long) and postganglionic neurons are relatively (short or long).
- short and then long
p. 507
Chapter 22: Autonomic Nervous System
- Norepinephrine affects visceral effectors by first binding to (cholinergic or adrenergic) receptors in their plasma membranes.
- adrenergic
p. 509
Chapter 22: Autonomic Nervous System
- The effect of a neurotransmitter on any postsynaptic cell is determined by the (characteristics of the receptor or neurotransmitter).
- characteristics of the receptor
p. 509
Chapter 22: Autonomic Nervous System
- A (nicotinic or beta) receptor is a main type of cholinergic receptor.
- nicotinic
p. 510
Chapter 22: Autonomic Nervous System
- The action of acetylcholine is (slowly or quickly) terminated when hydrolyzed by the enzyme acetylcholinesterase.
- quickly
p. 511
Chapter 22: Autonomic Nervous System
- _______ Both sympathetic and parasympathetic divisions are tonically active, meaning they continually conduct impulses to autonomic effectors.
True or False
- True
p. 512
Chapter 22: Autonomic Nervous System
- _______ Sympathetic impulses inhibit effectors and parasympathetic impulses stimulate effectors.
True or False
- False
p. 512
Chapter 22: Autonomic Nervous System
- _______ Autonomic centers function in a hierarchy in their control of the ANS, with the highest ranking being the autonomic centers in the cerebral cortex.
True or False
- True
p. 512
Chapter 22: Autonomic Nervous System
- ______ The sympathetic system plays a crucial role in maintaining blood pressure.
True or False
- True
p. 515
Chapter 22: Autonomic Nervous System
- ______ The sympathetic system dominates during “rest and repair.”
True or False
- False
p. 516
Chapter 22: Autonomic Nervous System
Applying What You Know!
- Cara experiences great anxiety before her college final exams. As the professor distributes the exam, she experiences a classic “fight or flight” reaction.
Question a. Which division of the autonomic nervous system is responsible for this phenomenon?
Question b. Which body systems are affected and how do they respond?
Question c. What is Cara’s risk from chronic exposure to such stress?
- (a) Sympathetic
(b) Muscular—skeletal muscles faster
Circulatory—stronger heartbeat, dilated blood vessels
Respiratory—dilated bronchi
Digestive—increased blood sugar levels
(c) Dysfunction of the sympathetic effectors and perhaps even the ANS itself.
Chapter 22: Autonomic Nervous System
Applying What You Know!
- Emma has periodic episodes of a “racing heart.” Within minutes of an attack, she feels lightheaded and extremely anxious. Her friend suggested that during an episode that she lie down on a bed, listen to soft, relaxing music, and periodically take her pulse to monitor her success in returning her heart to a normal rhythm. Emma has found the technique to be very helpful.
What is this technique called?
- Biofeedback
Chapter 22: Autonomic Nervous System
- Dendrites and cell bodies of sympathetic preganglionic neurons are located in the:
a. brain stem and sacral portion of the spinal cord.
b. sympathetic ganglia.
c. gray matter of the thoracic and upper lumbar segments of the spinal cord.
d. ganglia close to effectors.
- c. gray matter of the thoracic and upper lumbar segments of the spinal cord.
p. 505
Chapter 22: Autonomic Nervous System
- Which of the following is not correct?
a. Sympathetic preganglionic neurons have their cell bodies located in the lateral gray column of certain parts of the spinal cord.
b. Sympathetic preganglionic axons pass along the dorsal root of certain spinal nerves.
c. There are synapses within sympathetic ganglia.
d. Sympathetic responses are usually widespread, involving many organs.
- b. Sympathetic preganglionic axons pass along the dorsal root of certain spinal nerves.
p. 507
Chapter 22: Autonomic Nervous System
- Another name for the parasympathetic nervous system is:
a. thoracolumbar.
b. craniosacral.
c. visceral.
d. ANS.
e. cholinergic.
- b. craniosacral.
p. 507
Chapter 22: Autonomic Nervous System
- Which statement is not correct?
a. Sympathetic postganglionic neurons have their dendrites and cell bodies in sympathetic ganglion or collateral ganglia.
b. Sympathetic ganglions are located in front of and at each side of the spinal column.
c. Separate autonomic nerves distribute many sympathetic postganglionic axons to various internal organs.
d. Very few sympathetic preganglionic axons synapse with postganglionic neurons.
- d. Very few sympathetic preganglionic axons synapse with postganglionic neurons.
p. 507
Chapter 22: Autonomic Nervous System
- ______ constricts pupils
a. sympathetic control
b. parasympathetic control
- b. parasympathetic control
p. 514
Chapter 22: Autonomic Nervous System
- ______ bronchial relaxation
a. sympathetic control
b. parasympathetic control
- a. sympathetic control
p. 514
Chapter 22: Autonomic Nervous System
- ______ increases sweat secretion
a. sympathetic control
b. parasympathetic control
- a. sympathetic control
p. 514
Chapter 22: Autonomic Nervous System
- ______ increases secretion of digestive juices and insulin
a. sympathetic control
b. parasympathetic control
- b. parasympathetic control
p. 514
Chapter 22: Autonomic Nervous System
- ______ constricts blood vessels
a. sympathetic control
b. parasympathetic control
- a. sympathetic control
p. 514
Chapter 22: Autonomic Nervous System
- ______ slows heartbeat
a. sympathetic control
b. parasympathetic control
- b. parasympathetic control
p. 514
Chapter 22: Autonomic Nervous System
- ______ relaxes bladder
a. sympathetic control
b. parasympathetic control
- a. sympathetic control
p. 514
Chapter 22: Autonomic Nervous System
- ______ increases epinephrine secretion
a. sympathetic control
b. parasympathetic control
- a. sympathetic control
p. 514
Chapter 22: Autonomic Nervous System
- ______ increases peristalsis
a. sympathetic control
b. parasympathetic control
- b. parasympathetic control
p. 514
Chapter 22: Autonomic Nervous System
- ______ contracts ciliary muscle to accommodate near vision
a. sympathetic control
b. parasympathetic control
- b. parasympathetic control
p. 514
Chapter 22: Autonomic Nervous System
- ______ autonomic nervous system
a. division of ANS
b. tissues to which autonomic neurons conduct impulses
c. voluntary actions
d. regulates body’s involuntary effectors
e. efferent neurons that make up the ANS
f. conduct impulses between the spinal cord and a ganglion
- d. regulates body’s involuntary effectors
p. 504
Chapter 22: Autonomic Nervous System
- ______ autonomic neurons
a. division of ANS
b. tissues to which autonomic neurons conduct impulses
c. voluntary actions
d. regulates body’s involuntary effectors
e. efferent neurons that make up the ANS
f. conduct impulses between the spinal cord and a ganglion
- e. efferent neurons that make up the ANS
p. 505
Chapter 22: Autonomic Nervous System
- ______ preganglionic neurons
a. division of ANS
b. tissues to which autonomic neurons conduct impulses
c. voluntary actions
d. regulates body’s involuntary effectors
e. efferent neurons that make up the ANS
f. conduct impulses between the spinal cord and a ganglion
- f. conduct impulses between the spinal cord and a ganglion
p. 505
Chapter 22: Autonomic Nervous System
- ______ visceral effectors
a. division of ANS
b. tissues to which autonomic neurons conduct impulses
c. voluntary actions
d. regulates body’s involuntary effectors
e. efferent neurons that make up the ANS
f. conduct impulses between the spinal cord and a ganglion
- b. tissues to which autonomic neurons conduct impulses
p. 504
Chapter 22: Autonomic Nervous System
- ______ sympathetic system
a. division of ANS
b. tissues to which autonomic neurons conduct impulses
c. voluntary actions
d. regulates body’s involuntary effectors
e. efferent neurons that make up the ANS
f. conduct impulses between the spinal cord and a ganglion
- a. division of ANS
p. 504
Chapter 22: Autonomic Nervous System
- ______ somatic nervous system
a. division of ANS
b. tissues to which autonomic neurons conduct impulses
c. voluntary actions
d. regulates body’s involuntary effectors
e. efferent neurons that make up the ANS
f. conduct impulses between the spinal cord and a ganglion
- c. voluntary actions
p. 504
Chapter 22: Autonomic Nervous System
