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BIOS 252 - Week 4 - Central Nervous System The Brain with complete verified solutions 2025
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BIOS 252 - Week 4 - Central Nervous System The Brain with complete verified solutions 2025
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BIOS 252 - Week 4 - Central NervousSystem: The Brain with complete
verified solutions 2025
Autonomic motor neurons do not innervate
cardiac muscle cells
glands
skeletal muscle cells
smooth muscle cells. - answer skeletal muscle cells
The autonomic nervous system controls smooth muscle cells,
glands, and cardiac muscle cells only.
The voluntary somatic motor system innervates skeletal muscles.
Where does the cell body of the preganglionic neuron originate?
Postganglionic neuron
Central nervous system (CNS)
Target cell
Peripheral nervous system (PNS) - answer Central nervous system
(CNS)
The preganglionic neurons of the autonomic nervous system (ANS)
originate from the central nervous system (CNS) either from the
nuclei of the cranial nerves or from the lateral gray horn of specific
segments of the spinal cord.
,Which division of the autonomic nervous system (ANS) promotes
homeostasis when the body is engaged in any type of physical
work?
Somatic nervous system
Sympathetic nervous system
Parasympathetic nervous system
Sensory nervous system - answer Sympathetic nervous system
Which innervates target cells or organs of the autonomic nervous
system (ANS)?
Autonomic ganglion
Somatic motor neuron
Postganglionic neuron
Preganglionic neuron - answer Postganglionic neuron
After eating a large meal, Lisa felt sleepy. Which nervous system
dominates and is often called our "rest and digest" division of the
autonomic nervous system (ANS)?
Systemic nervous system
Sympathetic nervous system
Parasympathetic nervous system
Somatic nervous system - answer Parasympathetic nervous system
Preganglionic neurons of the sympathetic nervous system originate
in the
- gray rami communicantes
, - sympathetic chain ganglion
- collateral ganglion
- lateral horns of the spinal cord - answer lateral horns of the
spinal cord
Preganglionic neurons of the sympathetic nervous system originate
in the lateral gray horn of the thoracic and upper two lumbar
vertebrae.
What does the adrenal medulla serve to supplement?
- Sympathetic nervous system
- Both the sympathetic and parasympathetic nervous systems
-Somatic nervous system
- Parasympathetic nervous system - answer Sympathetic nervous
system
The adrenal medulla is considered a modified sympathetic ganglion
with very short postganglionic neurons that release the
neurotransmitters directly into the bloodstream.
Which cranial nerve is not involved in the parasympathetic nervous
system?
Vagus nerve (CN X)
Hypoglossal nerve (CN XII)
Facial nerve (CN VII)
Oculomotor nerve (CN III) - answer Hypoglossal nerve (CN XII)
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