Introduction
All of the following are effects of the sympathetic nervous system except:
a. increase in heart rate
b. increase in digestion
c. increase in respiration
d. increase in
blood pressure
b. increase in digestion
Which of the following statements is true of the parasympathetic nervous system?
a. the preganglionic fibers are shorter than the postganglionic fibers
b. the fibers emerge from the brain and sacral portion of the spinal cord
c. the ganglia lie close to the
spinal cord
d. all of the above statements
are true
b. the fibers emerge from the brain and the sacral portion of the spinal cord
Which of the following are types of adrenergic receptors?
a. nicotinic
b. muscarinic
c. alpha
d. both choices a and b
are correct
c. alpha
The parasympathetic nervous system is more active when we are _______.
a. at rest
b. digesting food
c. exercising
d. both choices a and b
are correct
d. both choices a and b are correct
The main integration center for the ANS is the _______.
a. medulla
b. midbrain
c. hypothalamus
d. thalamus
c. hypothalamus
Norepinephrine is secreted by ________.
a. some axons of the voluntary nervous system
b. some axons of the parasympathetic nervous system
c. some axons of the sympathetic
nervous system
d. both choices a and b
are correct
c. some axons of the sympathetic nervous system
The parasympathetic neurons are located on ____.
a. near the target organ
b. the brain
c. the lumbar portion of the spinal cord
a. near the target organ
Nicotinic receptors are found in all of the following except:
a. autonomic ganglia
b. skeletal muscles
c. adrenal medulla
d. heart
d. heart
Body temperature regulation is under the control of the ____________.
a. sympathetic nervous system
b. parasympathetic nervous system
c. voluntary nervous system
d. both the sympathetic and
parasympathetic nervous
systems
a. sympathetic nervous sytem
What is the structure that releases epinephrine to increase metabolic rate throughout the body?
a. hypothalamus
b. thalamus
c. adrenal medulla
d. pancreas
c. adrenal medulla
All of the following statements about the ANS are true except:
a. the cell bodies of the preganglionic neurons are in the CNS
b. the autonomic ganglia are in the PNS
c. the autonomic ganglia contain motor neurons only
d. the presynaptic axons extend
to the effectors
d. the presynaptic axons extend to the effectors
Which of the following is not true of the sympathetic nervous system?
a. the preganglionic neuron cell bodies are found in the CNS
b. the postganglionic neurons are in the PNS
c. some preganglionic fibers
travel to the adrenal medulla
d. the ganglia are close to
the effectors
d. the ganglia are close to the effectors
Mechanoreceptors respond to _____.
a. pH
b. CO2 levels
c. O2 levels
d. pressure and stretch
d. pressure and stretch
The parasympathetic nervous system shares control with the sympathetic nervous system over all of the following except:
a. heart
b. respiratory system
c. salivary glands
d. blood vessels
d. blood vessels
Cardiac and vasomotor reflex centers are found in the _______.
a. midbrain
b. thalamus
c. hypothalamus
d. medulla
d. medulla
All of the following “D”s describe the effects of the parasympathetic nervous system except:
a. digestion
b. defecation
c. diuresis
d. deep breathing
d. deep breathing
About 90% of the parasympatheic fibers are located in which cranial nerve?
a. III
b. VII
c. IX
d. X
d. X
Where are thermoreceptors found?
The effects of the sympathetic nervous system differs from the parasympathetic in all of the following except:
a. it is a regulatory effect
b. some fibers release norepinphrine
c. its effects are more diffuse
than they are localized
d. its effects last longer than
the parasympathetic
a. it is a regulatory effect
Visceral responses to emotion are mediated by the _______.
a. reticular formation
b. medulla
c. hypothalamus
d. thalamus
c. hypothalamus
All of the following “E”s are used to describe the sympathetic nervous system except
a. excitement
b. embarrassment
c. excretion
d. exercise
c. excretion
This cranial nerve contains all of the parasympathetic postganglionic fibers innervating the head:
a. V
b. VII
c. VIII
d. X
a. V
Chemoreceptors respond to _____.
a. drop in oxygen and hydrogen concentrations
b. pressure and stretch
c. CO2 levels
d. blood volume
a. drop in oxygen and hydrogen concentrations
Autonomic motor efferent nerves are under ___.
a. conscious control
b. unconscious control
b. unconscious control
The hypothalamus controls the autonomic regions of the brainstem and spinal cord via the _______.
a. reticular formation
b. midbrain
c. limbic system
d. cerebral cortex
a. reticular formation