1|Page
MN551 FINAL EXAM NEWEST ACTUAL EXAM
COMPLETE 100 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED
ANSWERS)||VERIFIED EXAM!! |ALREADY GRADED
A+||NEWEST EXAM!!
The bidirectional axonal transport system allows for the
transport of molecular materials (as opposed to electrical
impulses); anterograde transport has both slow and fast
components.
Which of the following characterizes a function of the
parasympathetic nervous system (PNS)?
a) Conservation of energy
b) Blood sugar increase
c) Constriction of the stomach and intestine sphincters
d) Blood flow shifting from the skin and gastrointestinal
tract to the skeletal muscles and brain - ANSWER-
Conservation of energy
The functions of the PNS are concerned with conservation
of energy, resource replenishment and storage, and
maintenance of organ function during periods of minimal
activity—the rest-digest response. All other options are
functions of the sympathetic nervous system
,2|Page
The nurse is aware that some drugs may be prevented
from entering the brain as a function of:
a) Elimination by the kidneys
b) Rapid absorption in the gastric mucosa
c) Detoxification by the liver
d) The blood-brain barrier - ANSWER-The blood-brain
barrier
The blood-brain barrier prevents many drugs from entering
the brain. Most highly water-soluble components are
excluded from the brain, especially molecules with high
ionic charge, such as many of the catecholamines.
An increased blood pressure is detected by the carotid
sinus baroreceptor and results in stimulation of the vagus
nerve to decrease the heart rate. At which of the following
levels of the nervous system does this reflex adjustment
occur?
a) Spinal cord
b) Brain stem (medulla and pons)
c) Cerebral cortex
,3|Page
d) Hypothalumus - ANSWER-Brain stem (medulla and
pons)
Reflex adjustment of cardiovascular and respiratory
function occur at the level of the brain stem (medulla and
pons). The other options do not provide autonomic control
of the cardiovascular system.
Which structures are part of the brain stem? Select all that
apply.
a) Pons
b) Midbrain
c) Cerebellum
d) Medulla oblongata - ANSWER-• Medulla oblongata
• Pons
• Midbrain
The term brain stem is often used to include the medulla,
pons, and midbrain. The cerebellum is not part of the brain
stem.
, 4|Page
Which drug, administered by the nurse to a client with a
heart rate of 40 and syncope, is a muscarinic blocking
drug that will increase the heart rate?
a) Atropine
b) Dopamine
c) Lidocaine
d) Epinephrine - ANSWER-• Atropine
The drug atropine is an antimuscarinic or muscarinic
cholinergic blocking drug that prevents the action of
acetylcholine at excitatory and inhibitory muscarinic
receptor sites. Because it is a muscarinic blocking drug, it
exerts little effect at nicotinic receptor sites.
While explaining the role of skeletal muscle relaxants,
such as succinylcholine, used during anesthesia, the
faculty mentions that these effects are caused by blocking:
a) N2, neuronal-type receptor, a type of nicotinic
acetylcholine receptor
b) Norepinephrine
c) Nicotinic acetylcholine receptors, muscle-type receptor
(NM)
MN551 FINAL EXAM NEWEST ACTUAL EXAM
COMPLETE 100 QUESTIONS AND CORRECT
DETAILED ANSWERS (VERIFIED
ANSWERS)||VERIFIED EXAM!! |ALREADY GRADED
A+||NEWEST EXAM!!
The bidirectional axonal transport system allows for the
transport of molecular materials (as opposed to electrical
impulses); anterograde transport has both slow and fast
components.
Which of the following characterizes a function of the
parasympathetic nervous system (PNS)?
a) Conservation of energy
b) Blood sugar increase
c) Constriction of the stomach and intestine sphincters
d) Blood flow shifting from the skin and gastrointestinal
tract to the skeletal muscles and brain - ANSWER-
Conservation of energy
The functions of the PNS are concerned with conservation
of energy, resource replenishment and storage, and
maintenance of organ function during periods of minimal
activity—the rest-digest response. All other options are
functions of the sympathetic nervous system
,2|Page
The nurse is aware that some drugs may be prevented
from entering the brain as a function of:
a) Elimination by the kidneys
b) Rapid absorption in the gastric mucosa
c) Detoxification by the liver
d) The blood-brain barrier - ANSWER-The blood-brain
barrier
The blood-brain barrier prevents many drugs from entering
the brain. Most highly water-soluble components are
excluded from the brain, especially molecules with high
ionic charge, such as many of the catecholamines.
An increased blood pressure is detected by the carotid
sinus baroreceptor and results in stimulation of the vagus
nerve to decrease the heart rate. At which of the following
levels of the nervous system does this reflex adjustment
occur?
a) Spinal cord
b) Brain stem (medulla and pons)
c) Cerebral cortex
,3|Page
d) Hypothalumus - ANSWER-Brain stem (medulla and
pons)
Reflex adjustment of cardiovascular and respiratory
function occur at the level of the brain stem (medulla and
pons). The other options do not provide autonomic control
of the cardiovascular system.
Which structures are part of the brain stem? Select all that
apply.
a) Pons
b) Midbrain
c) Cerebellum
d) Medulla oblongata - ANSWER-• Medulla oblongata
• Pons
• Midbrain
The term brain stem is often used to include the medulla,
pons, and midbrain. The cerebellum is not part of the brain
stem.
, 4|Page
Which drug, administered by the nurse to a client with a
heart rate of 40 and syncope, is a muscarinic blocking
drug that will increase the heart rate?
a) Atropine
b) Dopamine
c) Lidocaine
d) Epinephrine - ANSWER-• Atropine
The drug atropine is an antimuscarinic or muscarinic
cholinergic blocking drug that prevents the action of
acetylcholine at excitatory and inhibitory muscarinic
receptor sites. Because it is a muscarinic blocking drug, it
exerts little effect at nicotinic receptor sites.
While explaining the role of skeletal muscle relaxants,
such as succinylcholine, used during anesthesia, the
faculty mentions that these effects are caused by blocking:
a) N2, neuronal-type receptor, a type of nicotinic
acetylcholine receptor
b) Norepinephrine
c) Nicotinic acetylcholine receptors, muscle-type receptor
(NM)
