1
uta biol 2457 practical 2 Questions with
Correct Answers | Updated (100% Correct
Answers)
central nervous system Answer: (CNS) brain and spinal cord.
peripheral nervous system Answer: Body Nerves that connect to the
central nervous system (brain and spinal cord). Connects the central
nervous system to the body's organs and limbs.
sensory (afferent) neurons Answer: neurons that carry incoming
information from the sensory receptors (sight, smell, sound etc.) to
the brain and spinal cord
Interneurons Answer: Central nervous system neurons that internally
communicate and intervene between the sensory inputs and motor
outputs
motor (efferent) neurons Answer: Nerve cells responsible for
making an action or movement happen.Multipolar Shaped Neurons
white matter Answer: myelinated axons
grey matter Answer: unmyelinated neuron cell bodies and short,
unmyelinated axons
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,2
meninges Answer: three protective membranes that surround the
brain and spinal cord. dura mater, arachnoid mater, pia mater
dura matter Answer: thick, outermost layer of the meninges
surrounding and protecting the brain and spinal cord
arachnoid mater Answer: weblike middle layer of the three
meninges
pia matter Answer: thin, delicate inner membrane of the meninges
cerebrospinal fluid Answer: Fluid in the space between the
meninges that acts as a shock absorber that protects the central
nervous system.
dendrites Answer: Branchlike parts of a neuron that are specialized
to receive information.
cell body (soma) Answer: the part of a neuron that coordinates
information-processing tasks and keeps the cell alive
axon hillock Answer: the cone-shaped area on the cell body from
which the axon originates
axon Answer: the neuron extension that passes messages through
its branches to other neurons or to muscles or glands
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, 3
Schwann cells Answer: Type of glia in the PNS, Supporting cells of
the peripheral nervous system responsible for the formation of
myelin.
myelin sheath Answer: covers the axon of some neurons and helps
speed neural impulses
Nodes of Ranvier Answer: Gaps in the myelin sheath to which
voltage-gated sodium channels are confined.
axon terminals Answer: Branches at the end of the axon that
contain tiny pouches, or sacs, called synaptic vesicles.
Cerebrum Answer: Largest part of the brain; responsible for
voluntary muscular activity, vision, speech, taste, hearing, thought,
and memory.
frontal lobe Answer: A region of the cerebral cortex that has
specialized areas for movement, abstract thinking, planning,
memory, and judgement
parietal lobe Answer: portion of the cerebral cortex lying at the top
of the head and toward the rear; receives sensory input for touch
and body position
temporal lobe Answer: A region of the cerebral cortex responsible
for hearing and language.
© 2025 All rights reserved
uta biol 2457 practical 2 Questions with
Correct Answers | Updated (100% Correct
Answers)
central nervous system Answer: (CNS) brain and spinal cord.
peripheral nervous system Answer: Body Nerves that connect to the
central nervous system (brain and spinal cord). Connects the central
nervous system to the body's organs and limbs.
sensory (afferent) neurons Answer: neurons that carry incoming
information from the sensory receptors (sight, smell, sound etc.) to
the brain and spinal cord
Interneurons Answer: Central nervous system neurons that internally
communicate and intervene between the sensory inputs and motor
outputs
motor (efferent) neurons Answer: Nerve cells responsible for
making an action or movement happen.Multipolar Shaped Neurons
white matter Answer: myelinated axons
grey matter Answer: unmyelinated neuron cell bodies and short,
unmyelinated axons
© 2025 All rights reserved
,2
meninges Answer: three protective membranes that surround the
brain and spinal cord. dura mater, arachnoid mater, pia mater
dura matter Answer: thick, outermost layer of the meninges
surrounding and protecting the brain and spinal cord
arachnoid mater Answer: weblike middle layer of the three
meninges
pia matter Answer: thin, delicate inner membrane of the meninges
cerebrospinal fluid Answer: Fluid in the space between the
meninges that acts as a shock absorber that protects the central
nervous system.
dendrites Answer: Branchlike parts of a neuron that are specialized
to receive information.
cell body (soma) Answer: the part of a neuron that coordinates
information-processing tasks and keeps the cell alive
axon hillock Answer: the cone-shaped area on the cell body from
which the axon originates
axon Answer: the neuron extension that passes messages through
its branches to other neurons or to muscles or glands
© 2025 All rights reserved
, 3
Schwann cells Answer: Type of glia in the PNS, Supporting cells of
the peripheral nervous system responsible for the formation of
myelin.
myelin sheath Answer: covers the axon of some neurons and helps
speed neural impulses
Nodes of Ranvier Answer: Gaps in the myelin sheath to which
voltage-gated sodium channels are confined.
axon terminals Answer: Branches at the end of the axon that
contain tiny pouches, or sacs, called synaptic vesicles.
Cerebrum Answer: Largest part of the brain; responsible for
voluntary muscular activity, vision, speech, taste, hearing, thought,
and memory.
frontal lobe Answer: A region of the cerebral cortex that has
specialized areas for movement, abstract thinking, planning,
memory, and judgement
parietal lobe Answer: portion of the cerebral cortex lying at the top
of the head and toward the rear; receives sensory input for touch
and body position
temporal lobe Answer: A region of the cerebral cortex responsible
for hearing and language.
© 2025 All rights reserved
