PORTAGE LEARNING A&P 2: FINAL EXAM NEWEST
TEST BANK UPDATE 2025\2026 WITH ACTUAL
QUESTIONS AND CORRECT
VERIFIED ANSWERS/WELL ANALYSED ALL GRADED A+
Collection of cell bodies found in the peripheral nervous system: - CORRECT
ANSWER-Ganglia
Fill-in-the-blanks: _______ matter is composed of a mixture of the cell bodies
of neurons. _______ matter is composed of myelinated and unmyelinated
nerve
fibers - CORRECT ANSWER-gray, white
Describe the synthesis and storage of neurotransmitters: - CORRECT
ANSWER-The neuron cell body manufactures neurotransmitters, which are
stored in secretory vesicles at the end of axon terminals.
A postsynaptic neuron would be found - CORRECT ANSWER-after the synapse
,What is the disease for mpaired motor functioning? - CORRECT ANSWER-
apraxia
impaired motor functioning
what is the location and function of satellite cells - CORRECT ANSWER-
location: peripheral nervous system
function: regulate the environment of neuron cell bodies.
what is the location and function of astrocytes - CORRECT ANSWER-location:
central nervous system, the brain
function: forms the blood, brain barrier
What is the purpose of the blood-brain barrier? describe its maintenance from
a cellular level. - CORRECT ANSWER-it is a barrier of astrocytes wrapped
around capillaries that helps prevent unneeded materials from entering the
CNS. Keeps the chemical environment of the neurons just right.
list the 4 parts of the human brain - CORRECT ANSWER-diencephalon,
cerebellum, cerebral hemispheres, and brain stem.
This region of the brain acts a sensory relay station: - CORRECT ANSWER-A.
Diencephalon (thalamus)
List the phases of an action potential in order - CORRECT ANSWER-1. resting
potential
2. depolarization
3. repolarization
4. resting condition
,Development of a fetus in the uterus is divided into three trimesters. Choose
one of the trimesters and name which months the trimester covers and at least
two human development processes that occur in that trimester. - CORRECT
ANSWER-The third trimester (months 7-9) is characterized by the continued
development of the systems already in place. For males, the testes descend
into the scrotum. The baby increases in weight and begins to develop fat under
the skin. Sucking reflexes develop around week 32. Lung maturation and
temperature regulation are vital for the survival of the baby outside of the
uterus.
Name and describe what is occurring in the neuron cell membranein section 4
of the diagram. Include the charge of the membrane during this phase. -
CORRECT ANSWER-This is phase 4: afterpolarization (hyperpolarization), the
potassium gates are slow to clse and that results in an undershoot of the
potential, the voltage will drop below -70mV and the return to the restign state
beings.
Name and describe what is occurring in the neurocell membrane in section 2 of
the diagram. include the charge of the membrane during this phase. -
CORRECT ANSWER-Deprivation, sodium gates are opened and the sodium
floods into the axon admits the depolarization of the action potential, causing
the charge voltage to go from 0 to +40 mV
A patients left thumb was severed in a cooking accident and then reattached
during surgery. Would the patient be expected to regrow axons in their thumb?
Why? Why not? - CORRECT ANSWER-Yes. Peripheral nerves can regenerate
the length of an axon through axonal regeneration because of the growth of
Schwann cells ahead of the axon.
At rest, a neuron plasma membrane is:
A. -70 mV
, B. +40 mV
C. Hyperpolarized
D. Depolarized - CORRECT ANSWER-Polarized (around -70mV)
True or false, explain why the statement is false: Bipolar neurons have a central
cell body with two extensions - CORRECT ANSWER-True
The neuron pictured below, is best described as - CORRECT ANSWER-
multipolar
Which of the following is false concerning the sodium-potassium pump?
A. it maintains the resting phase of an axon
B. For every three sodium ions pumped out, two potassium ions are pumped in
C. it must remain in constant operation to maintain the resting state
D. The overall effect is a negative charge on the outside of the membrane -
CORRECT ANSWER-D
Which of the following is true concerning the sodium-potassium pump? -
CORRECT ANSWER-It must remain in constant operation to maintain resting
state.
T/F : A sensory neuron is signaling the body of extreme pain. This means that
the strength of the action potential is greater than usual. - CORRECT
ANSWER-False. There is no variation in the strength of the action potentials.
(all or nothing) There is a variation in the number and frequency of neurons
firing.
TEST BANK UPDATE 2025\2026 WITH ACTUAL
QUESTIONS AND CORRECT
VERIFIED ANSWERS/WELL ANALYSED ALL GRADED A+
Collection of cell bodies found in the peripheral nervous system: - CORRECT
ANSWER-Ganglia
Fill-in-the-blanks: _______ matter is composed of a mixture of the cell bodies
of neurons. _______ matter is composed of myelinated and unmyelinated
nerve
fibers - CORRECT ANSWER-gray, white
Describe the synthesis and storage of neurotransmitters: - CORRECT
ANSWER-The neuron cell body manufactures neurotransmitters, which are
stored in secretory vesicles at the end of axon terminals.
A postsynaptic neuron would be found - CORRECT ANSWER-after the synapse
,What is the disease for mpaired motor functioning? - CORRECT ANSWER-
apraxia
impaired motor functioning
what is the location and function of satellite cells - CORRECT ANSWER-
location: peripheral nervous system
function: regulate the environment of neuron cell bodies.
what is the location and function of astrocytes - CORRECT ANSWER-location:
central nervous system, the brain
function: forms the blood, brain barrier
What is the purpose of the blood-brain barrier? describe its maintenance from
a cellular level. - CORRECT ANSWER-it is a barrier of astrocytes wrapped
around capillaries that helps prevent unneeded materials from entering the
CNS. Keeps the chemical environment of the neurons just right.
list the 4 parts of the human brain - CORRECT ANSWER-diencephalon,
cerebellum, cerebral hemispheres, and brain stem.
This region of the brain acts a sensory relay station: - CORRECT ANSWER-A.
Diencephalon (thalamus)
List the phases of an action potential in order - CORRECT ANSWER-1. resting
potential
2. depolarization
3. repolarization
4. resting condition
,Development of a fetus in the uterus is divided into three trimesters. Choose
one of the trimesters and name which months the trimester covers and at least
two human development processes that occur in that trimester. - CORRECT
ANSWER-The third trimester (months 7-9) is characterized by the continued
development of the systems already in place. For males, the testes descend
into the scrotum. The baby increases in weight and begins to develop fat under
the skin. Sucking reflexes develop around week 32. Lung maturation and
temperature regulation are vital for the survival of the baby outside of the
uterus.
Name and describe what is occurring in the neuron cell membranein section 4
of the diagram. Include the charge of the membrane during this phase. -
CORRECT ANSWER-This is phase 4: afterpolarization (hyperpolarization), the
potassium gates are slow to clse and that results in an undershoot of the
potential, the voltage will drop below -70mV and the return to the restign state
beings.
Name and describe what is occurring in the neurocell membrane in section 2 of
the diagram. include the charge of the membrane during this phase. -
CORRECT ANSWER-Deprivation, sodium gates are opened and the sodium
floods into the axon admits the depolarization of the action potential, causing
the charge voltage to go from 0 to +40 mV
A patients left thumb was severed in a cooking accident and then reattached
during surgery. Would the patient be expected to regrow axons in their thumb?
Why? Why not? - CORRECT ANSWER-Yes. Peripheral nerves can regenerate
the length of an axon through axonal regeneration because of the growth of
Schwann cells ahead of the axon.
At rest, a neuron plasma membrane is:
A. -70 mV
, B. +40 mV
C. Hyperpolarized
D. Depolarized - CORRECT ANSWER-Polarized (around -70mV)
True or false, explain why the statement is false: Bipolar neurons have a central
cell body with two extensions - CORRECT ANSWER-True
The neuron pictured below, is best described as - CORRECT ANSWER-
multipolar
Which of the following is false concerning the sodium-potassium pump?
A. it maintains the resting phase of an axon
B. For every three sodium ions pumped out, two potassium ions are pumped in
C. it must remain in constant operation to maintain the resting state
D. The overall effect is a negative charge on the outside of the membrane -
CORRECT ANSWER-D
Which of the following is true concerning the sodium-potassium pump? -
CORRECT ANSWER-It must remain in constant operation to maintain resting
state.
T/F : A sensory neuron is signaling the body of extreme pain. This means that
the strength of the action potential is greater than usual. - CORRECT
ANSWER-False. There is no variation in the strength of the action potentials.
(all or nothing) There is a variation in the number and frequency of neurons
firing.
