Study Guide From Quiz 16

Topics: Nervous system, Parasympathetic nervous system, Acetylcholine Pages: 19 (1244 words) Published: March 13, 2015
The figure illustrates the parasympathetic division. What does "A" represent?

cranial nerves
The figure illustrates the parasympathetic division. What does "C" represent?

terminal ganglia
The figure illustrates the parasympathetic division. What does "E" represent?

pelvic nerves
parasympathetic
effects more localized
increases activity of GI tract
effects are short-lived
provides more extensive innervation of G.I. Tract
craniosacral division
functions at rest

sympathetic
effects are more general
can produce widespread sweating
has greater influence during physical activity
inhibits heart rate but stimulates contraction of urinary bladder stimulation of this system often activates many effectors at the same time release of epinephrine and norepinephrine
thoracolumbar division
fight-or-flight response
provides innervation to blood vessels in skeletal muscles

The celiac ganglion is one of the three main _________ ganglia.

collateral
Axons from preganglionic neurons of the parasympathetic division synapse with _________ ganglia.

terminal
In the sympathetic division of the ANS,

the preganglionic cell body is located in the lateral horn of the spinal cord. The parasympathetic nervous system is characterized by

short postganglionic axons near the organs they innervate.
The sympathetic and parasympathetic divisions of the ANS differ in the

length of the preganglionic and postganglionic axons, location of the preganglionic cell bodies, and position of the ganglia where preganglionic and postganglionic neurons synapse. Sympathetic fibers leave the spinal cord in the

thoracic and lumbar regions.
Axons exit the sympathetic chain ganglia by all of the following except

cranial nerves.
Sympathetic preganglionic axons

can synapse in either chain or collateral ganglia.
Sympathetic stimulation of the postganglionic cells of the adrenal medulla causes the release of

epinephrine and norepinephrine.
The vagus nerve carries parasympathetic impulses to the

thoracic and abdominal viscera.
Which of the following nerves has parasympathetic axons?

facial
Which of the following cranial nerves does NOT carry parasympathetic fibers?

hypoglossal
Stimulation of the iris by parasympathetic nerves stimulates pupillary constriction. True
The _____________ has both a1 and b1 receptors and responds to sympathoadrenal stimulation with glycogenolysis and secretion of glucose.

liver
Blocking β2-adrenergic receptors prevents airway

dilation.
Muscarinic antagonists stimulate _____________ pupillary diameter.

increased
The major regulatory center of the autonomic system is, according to many scientists, the ______________ since this brain region has functions, such as control of body temperature, that require appropriate activation of sympathetic and parasympathetic nerves.

hypothalamus
Propanolol, a beta-blocker, is typically used to

decrease heart rate.
Muscarinic receptors bind

acetylcholine.
Sympathetic effects tend to last ___ than parasympathetic effect. One reason is that ___.

longer; norepinephrine can diffuse into the bloodstream without being broken down The cell bodies of parasympathetic preganglionic neurons are located either within the________ or the ________.

brainstem, lateral gray matter in the sacral region of the spinal cord The splanchnic nerves synapse in the

collateral ganglia.
The preganglionic cell bodies of the sympathetic division of the ANS are located in the __________.

a. lateral gray matter between the T1 and L2 vertebrae
The cell bodies of parasympathetic preganglionic neurons are located either within the________ or the ________.

brainstem, lateral gray matter in the sacral region of the spinal cord If a single structure receives innervation from both the sympathetic and parasympathetic divisions of the ANS, it is called ________ innervation, and the effects of both divisions on that single structure...
Continue Reading

Please join StudyMode to read the full document

You May Also Find These Documents Helpful

  • Study guide Essay
  • Study Guide Essay
  • Gm545 Quiz Study Guide Essay
  • Quiz 1 study guide Essay
  • Essay about Quiz 1 Study Guide
  • Blood Quiz Study Guide Essay
  • Quiz 1 Study Guide Essay
  • Odyssey Quiz (Study Guide) Essay

Become a StudyMode Member

Sign Up - It's Free