TEAS 7 NERVOUS SYSTEM EXAM NEWEST 2025 COMPLETE QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY GRADED A+||RANKED!!!!

TEAS 7 NERVOUS SYSTEM EXAM NEWEST 2025 COMPLETE QUESTIONS
AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS) |ALREADY
GRADED A+||RANKED!!!!




What do afferent neurons of the PNS do? - CORRECT ANSWER-Afferent neurons of the PNS
transmit impulses to the CNS



What do efferent neurons do? - CORRECT ANSWER-Efferent neurons transmit impulses to
effectors



What are the 2 parts of the PNS? - CORRECT ANSWER-Autonomic system (ANS)

Somatic nervous system (SNS)



What part of the nervous system controls voluntary movement?

ex: contraction of skeletal muscle - CORRECT ANSWER-Somatic nervous system (SNS)



What part of the nervous system controls involuntary movement?

Ex: contraction of smooth/ cardiac muscles/ glandular secretions - CORRECT ANSWER-
Autonomic nervous system (ANS)



What are the 2 parts of the Autonomic nervous system (ANS)? - CORRECT 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 - CORRECT ANSWER-Sympathetic division



What does the sympathetic division do? - CORRECT ANSWER-fight or flight

increasing heart rate, dilating pupils, bronchial tubes, and suppressing functions that are not
required for immediate survival



"Rest and digest"

functions by decreasing heart rate, constricting pupils, bronchial tubes, and promoting digestion
- CORRECT ANSWER-Parasympathetic division



What does the parasympathetic division do? - CORRECT 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) - CORRECT ANSWER-Preganglionic neuron

Postganglionic neuron



what does the preganglionic neuron do? - CORRECT ANSWER-runs from the CNS to a ganglion



What are the 2 main parts of the nervous system? - CORRECT ANSWER-Central nervous system

Peripheral nervous system



What consists of the central nervous system? - CORRECT ANSWER-brain and spinal cord



What consists of the peripheral nervous system? - CORRECT ANSWER-nervous tissues (nerves,
ganglia) that are outside the CNS

, What does the central nervous system do? - CORRECT ANSWER-integrates sensory information



What does the peripheral nervous system do? - CORRECT ANSWER-sends information to and
from the CNS allowing it to communicate with the rest of the body



what does the postganglionic neuron do? - CORRECT ANSWER-innervates the effector



What do the preganglionic neurons of the sympathetic nervous system release? - CORRECT
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? - CORRECT
ANSWER-norepinephrine



What does norepinephrine do? - CORRECT 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? - CORRECT ANSWER-acetylcholine