1|Page
UTA A&P Exam 2 Review 2026 |Actual
Questions With Correct Answers
olgiodendrocytes - correct-answer -In CNS, form myelin sheath that insulates the
axon of vertebrates
ependymal cells - correct-answer -produce and circulate cerebrospinal fluid
action potential - correct-answer --the change in electrical potential associated
with the passage of an impulse along the membrane of a muscle cell or nerve cell.
-the changes of internal and external charges within the cell.
-speed of firing is effected by diameter of axon and how myelinated it is.
-"all or none". The whole series of permeability changes within the cell and the
resultant changes of the internal and external charges.
(axons)
depolarize - correct-answer -a cell that is more positive than at rest is called?
,2|Page
Repolarized - correct-answer --Having regained, after depolarization, a difference
in electrical charge inside and outside a cell.
-the inside of a cell becomes more negative at rest.
Hyperpolarization - correct-answer --when a cell overshoots and becomes more
negative at rest.
refactory period - correct-answer -The "recharging phase" when a neuron, after
firing, cannot generate another action potential.
gray
white - correct-answer -color of typical axons
color of cell bodies
Nodes of Ranvier - correct-answer --gaps in the myelin sheath
Between Adjacent Glial cells on axons are tiny bare spots called_____
,3|Page
local potential - correct-answer -as the potential spreads across the membrane, it
diminishes as it moves away from the point of stimulation.
doesn't meet the threshold to stimulate the action potential
(dendrites)
sensory - correct-answer -input
motor - correct-answer -output
saltadory conduction - correct-answer --the propagation of action potentials along
myelinated axons from one node of Ranvier to the next node, increasing the
conduction velocity of action potentials.
-nerve impulses jumping from node to node.
multiple sclerosis(MS) - correct-answer --destruction of the myelin sheath on
neurons in the CNS and its replacement by plaques of sclerotic (hard) tissue
-have disturbances in vison, balance, speech or movement.
-A medical disorder in which the myelin in the CNS has been destroyed
-is caused by an autoimmune attack on the myelin in the central nervous system
, 4|Page
chemical synapse - correct-answer --a type of synapse at which a chemical (a
neurotransmitter) is released from the axon of a neuron into the synaptic cleft,
where it binds to receptors on the next structure (either another neuron or an
organ)
-neuromuscular junction(acetylcholine)
-(SSRIs) antidepressants
eletrical synapse - correct-answer --some cells do need chemicals to transmit
information from one cell to another.
-have special connections called GAP JUNCTIONS
-are found in intercalated disks (cardiac muscles)
Synapse - correct-answer -meeting point between neurons
31 - correct-answer -spinal cord is divided into how many segements with a pair
of spinal nerves?
cauda equina - correct-answer -horse tail at the end of the spinal cord
UTA A&P Exam 2 Review 2026 |Actual
Questions With Correct Answers
olgiodendrocytes - correct-answer -In CNS, form myelin sheath that insulates the
axon of vertebrates
ependymal cells - correct-answer -produce and circulate cerebrospinal fluid
action potential - correct-answer --the change in electrical potential associated
with the passage of an impulse along the membrane of a muscle cell or nerve cell.
-the changes of internal and external charges within the cell.
-speed of firing is effected by diameter of axon and how myelinated it is.
-"all or none". The whole series of permeability changes within the cell and the
resultant changes of the internal and external charges.
(axons)
depolarize - correct-answer -a cell that is more positive than at rest is called?
,2|Page
Repolarized - correct-answer --Having regained, after depolarization, a difference
in electrical charge inside and outside a cell.
-the inside of a cell becomes more negative at rest.
Hyperpolarization - correct-answer --when a cell overshoots and becomes more
negative at rest.
refactory period - correct-answer -The "recharging phase" when a neuron, after
firing, cannot generate another action potential.
gray
white - correct-answer -color of typical axons
color of cell bodies
Nodes of Ranvier - correct-answer --gaps in the myelin sheath
Between Adjacent Glial cells on axons are tiny bare spots called_____
,3|Page
local potential - correct-answer -as the potential spreads across the membrane, it
diminishes as it moves away from the point of stimulation.
doesn't meet the threshold to stimulate the action potential
(dendrites)
sensory - correct-answer -input
motor - correct-answer -output
saltadory conduction - correct-answer --the propagation of action potentials along
myelinated axons from one node of Ranvier to the next node, increasing the
conduction velocity of action potentials.
-nerve impulses jumping from node to node.
multiple sclerosis(MS) - correct-answer --destruction of the myelin sheath on
neurons in the CNS and its replacement by plaques of sclerotic (hard) tissue
-have disturbances in vison, balance, speech or movement.
-A medical disorder in which the myelin in the CNS has been destroyed
-is caused by an autoimmune attack on the myelin in the central nervous system
, 4|Page
chemical synapse - correct-answer --a type of synapse at which a chemical (a
neurotransmitter) is released from the axon of a neuron into the synaptic cleft,
where it binds to receptors on the next structure (either another neuron or an
organ)
-neuromuscular junction(acetylcholine)
-(SSRIs) antidepressants
eletrical synapse - correct-answer --some cells do need chemicals to transmit
information from one cell to another.
-have special connections called GAP JUNCTIONS
-are found in intercalated disks (cardiac muscles)
Synapse - correct-answer -meeting point between neurons
31 - correct-answer -spinal cord is divided into how many segements with a pair
of spinal nerves?
cauda equina - correct-answer -horse tail at the end of the spinal cord
