ANPH 1001 - Unit Three Questions and
Answers Graded A+
The nervous system breaks down into 2: - Correct answer-Central Nervous System
(CNS)
&
Peripheral Nervous System (PNS)
what does the CNS contain? - Correct answer-brain and spine
what does the PNS contain? - Correct answer-Afferent and efferent
what does the PNS break down into? - Correct answer-afferent and efferent
Afferent - Correct answer-sensory neurons that convey information from receptors
to CNS
efferent - Correct answer-motor neurons that convey information from CNS to
muscle and glands
efferent peripheral system breaks down into 2: - Correct answer-somatic nervous
system
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,&
autonomic nervous system
somatic nervous system - Correct answer-conducts impulse from brain and spinal
cord to skeletal muscle
(which enables us to respond to external environment)
- voluntary
autonomic nervous system - Correct answer-conducts impulse from brain and
spinal cord to smooth muscles (intestines, cardiac, muscles, glands)
- involuntary
The autonomic nervous system breaks down into 2: - Correct answer-sympathetic
and parasympathetic
sympathetic - Correct answer-fight or flight
(stimulates/speeds, activates that use for energy)
parasympathetic - Correct answer-restores, slows down to restore to normal body
functions
nerve tissue consists of...? - Correct answer-groupings of nerve cells called neurons
what do neurons do? - Correct answer-transmit nerve impulse
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, describe a Nerve... what is it made up of? - Correct answer-bundle of nerve cells
Neuroglia (glia cells) - Correct answer-part of nervous tissue that support and
protect
how much of the brain cells are neuroglia cells? - Correct answer-60%
do neuroglia cells conduct impulse? - Correct answer-no
Neuroglia Cell: Astrocytes - Correct answer-- star-shaped that wrap around nerve
cell
- attach neurons to blood vessels
- regulate nutrients
Neuroglia Cell: Oligodendroglia - Correct answer-- support forming connective
tissue on neurons on brain and spinal cord
- gives white matter its colour
Neuroglia Cell: Microglia - Correct answer-make sure nervous system is clear of
debris
(phagocytes)
Neuroglia Cell: Ependymal - Correct answer-line the fluid filled ventricles of the
brain
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Answers Graded A+
The nervous system breaks down into 2: - Correct answer-Central Nervous System
(CNS)
&
Peripheral Nervous System (PNS)
what does the CNS contain? - Correct answer-brain and spine
what does the PNS contain? - Correct answer-Afferent and efferent
what does the PNS break down into? - Correct answer-afferent and efferent
Afferent - Correct answer-sensory neurons that convey information from receptors
to CNS
efferent - Correct answer-motor neurons that convey information from CNS to
muscle and glands
efferent peripheral system breaks down into 2: - Correct answer-somatic nervous
system
©COPYRIGHT 2025, ALL RIGHTS RESERVED 1
,&
autonomic nervous system
somatic nervous system - Correct answer-conducts impulse from brain and spinal
cord to skeletal muscle
(which enables us to respond to external environment)
- voluntary
autonomic nervous system - Correct answer-conducts impulse from brain and
spinal cord to smooth muscles (intestines, cardiac, muscles, glands)
- involuntary
The autonomic nervous system breaks down into 2: - Correct answer-sympathetic
and parasympathetic
sympathetic - Correct answer-fight or flight
(stimulates/speeds, activates that use for energy)
parasympathetic - Correct answer-restores, slows down to restore to normal body
functions
nerve tissue consists of...? - Correct answer-groupings of nerve cells called neurons
what do neurons do? - Correct answer-transmit nerve impulse
©COPYRIGHT 2025, ALL RIGHTS RESERVED 2
, describe a Nerve... what is it made up of? - Correct answer-bundle of nerve cells
Neuroglia (glia cells) - Correct answer-part of nervous tissue that support and
protect
how much of the brain cells are neuroglia cells? - Correct answer-60%
do neuroglia cells conduct impulse? - Correct answer-no
Neuroglia Cell: Astrocytes - Correct answer-- star-shaped that wrap around nerve
cell
- attach neurons to blood vessels
- regulate nutrients
Neuroglia Cell: Oligodendroglia - Correct answer-- support forming connective
tissue on neurons on brain and spinal cord
- gives white matter its colour
Neuroglia Cell: Microglia - Correct answer-make sure nervous system is clear of
debris
(phagocytes)
Neuroglia Cell: Ependymal - Correct answer-line the fluid filled ventricles of the
brain
©COPYRIGHT 2025, ALL RIGHTS RESERVED 3
