EXAM 2026/2027 WITH 230
QUESTIONS AND EXPERT-VERIFIED
CORRECT ANSWERS | ALREADY
GRADED A+ | TEAS 7 NERVOUS
SYSTEM PRACTICE EXAM
What does the parasympathetic division do? - ANSWER-"Rest and digest"
functions by decreasing heart rate, constricting pupils, bronchial tubes, and
promoting digestion
What are the 2 neuron pathways of the autonomic nervous system (sympathetic +
parasympathetic) - ANSWER-Preganglionic neuron
Postganglionic neuron
what does the preganglionic neuron do? - ANSWER-runs from the CNS to a
ganglion
,what does the postganglionic neuron do? - ANSWER-innervates the effector
What do the preganglionic neurons of the sympathetic nervous system release? -
ANSWER-acetylcholine (ACh)
which is the stimulus for the release of norepinephrine from postganglionic
neurons
What do the postganglionic neurons of the sympathetic nervous system release? -
ANSWER-norepinephrine
What does norepinephrine do? - ANSWER-helps control alertness and arousal
Acts on target tissues promoting a rapid and unified response
- heart rate increases
- respiration rate increases
- blood flow to the heart and skeletal muscle increases
- Pupils dilate
- Glycogen is broken down
What do both the preganglionic and postganglionic neurons of the parasympathetic
nervous system release? - ANSWER-acetylcholine
The ------ nervous system stimulates events that are slower-paced and less essential
for immediate survival - ANSWER-parasympathetic
,What does the paraysmpathetic nervous system do to the body along with the
release of acetylcholine - ANSWER-Heart rate decreases
Respiration rate decreases
Blood flow is directed to digestive organs
Peristalsis is promoted
Pupils contrict
Glycogen is synthsized
What are sensory neurons? - ANSWER-afferent neurons that deliver impulses to
the CNS
What are the 2 main parts of the nervous system? - ANSWER-Central nervous
system
Peripheral nervous system
What consists of the central nervous system? - ANSWER-brain and spinal cord
What consists of the peripheral nervous system? - ANSWER-nervous tissues
(nerves, ganglia) that are outside the CNS
What does the central nervous system do? - ANSWER-integrates sensory
information
What does the peripheral nervous system do? - ANSWER-sends information to
and from the CNS allowing it to communicate with the rest of the body
What do afferent neurons of the PNS do? - ANSWER-Afferent neurons of the PNS
transmit impulses to the CNS
, What do efferent neurons do? - ANSWER-Efferent neurons transmit impulses to
effectors
What are the 2 parts of the PNS? - ANSWER-Autonomic system (ANS)
Somatic nervous system (SNS)
What part of the nervous system controls voluntary movement?
ex: contraction of skeletal muscle - ANSWER-Somatic nervous system (SNS)
What part of the nervous system controls involuntary movement?
Ex: contraction of smooth/ cardiac muscles/ glandular secretions - ANSWER-
Autonomic nervous system (ANS)
What are the 2 parts of the Autonomic nervous system (ANS)? - ANSWER-
Parasympathetic division
Sympathetic division
Activates the "fight and flight" response preparing the body for action by
increasing heart rate, dilating pupils, bronchial tubes, and suppressing functions
that are not required for immediate survival - ANSWER-Sympathetic division
What does the sympathetic division do? - ANSWER-fight or flight
increasing heart rate, dilating pupils, bronchial tubes, and suppressing functions
that are not required for immediate survival
"Rest and digest"