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A&P 2 FINAL EXAM PORTAGE LEARNING
EXAM|| 2025 QUESTIONS AND 100% CORRECT
ANSWERS ALREADY GRADED A+|| LATEST AND
COMPLETE UPDATE 2025 WITH VERIFIED
SOLUTIONS|| GUARANTEED A+
This is a collection of cell bodies found in the peripheral nervous system. Ganglia
This part of the autonomic system increases digestion. Parasympathetic
The dorsal root of a nerve contains what type of neurons? Sensory (Afferent)
This part of a neuron conducts nerve impulses towards the cell body. Dendrites
An interneuron inside the spinal cord is part of the:
D. Central nervous system
The neuron pictured, below, is best described as:
Multipolar
True or false: Neurons do not physically touch one another.
True
Describe the synthesis and storage of neurotransmitters.
The neuron cell body manufactures neurotransmitters, which are stored in
secretory vesicles at the end of axon terminals.
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An afferent neuron carries information:
From the peripheral to the central nervous system A postsynaptic neuron would be
found:
After the synapse
What is the location and function of Astrocytes?
Location: Central nervous system (CNS)
Function: Regulation of chemical environment inside CNS, forming a physical
barrier (blood-brain-barrier) by wrapping around blood capillaries
A patient's 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 or
why not?
Yes; Peripheral nerves can regenerate the length of the axon through axonal
regeneration because of the growth of Schwann cells ahead of the axon.
Name and describe what is occurring in the neuron cell membrane in section 4 of
the diagram. Include the charge of the membrane during this phase.
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Afterpolarization (Hyperpolarization) Potassium gates are slow to close and there
is an undershoot of the potential.
The charge drops below -70mV and then returns to -70mV once at resting state
again.
At rest, a neuron plasma membrane is:
-70 mV
Which of the following is true concerning the sodium-potassium pump?
It must remain in constant operation to maintain the resting state.
True or false: A sensory neuron is signaling the body of a light touch. This means
that the strength of the action potential is weaker than usual. Explain your
reasoning.
False
Which of the following statements is true concerning the neuromuscular junction?
, 4|Page
The NMJ terminates on a muscle fiber.
What prevents continuous stimulation of a nerve synapse and how is this
accomplished?
The short existence of neurotransmitters in the synapse prevents continuous
stimulation. Some synapses contain enzymes that rapidly inactivate
neurotransmitters and other synapses rapidly absorb the neurotransmitter.
What neurotransmitter is found at the neuromuscular junctions?
Acetylcholine (ACh)
True or False: Action potentials travel in one direction within the same neuron.
True
True or False: Reflexes occur slower than a conscious decision to move from the
brain.
False
Fill in the blank: In a reflex, the neuron conducts nerve impulses along a
pathway to create a response.
motor (efferent)
Where is the integration center of a reflex located? CNS (central nervous system)
Which of the following statements is false about reflexes?
A&P 2 FINAL EXAM PORTAGE LEARNING
EXAM|| 2025 QUESTIONS AND 100% CORRECT
ANSWERS ALREADY GRADED A+|| LATEST AND
COMPLETE UPDATE 2025 WITH VERIFIED
SOLUTIONS|| GUARANTEED A+
This is a collection of cell bodies found in the peripheral nervous system. Ganglia
This part of the autonomic system increases digestion. Parasympathetic
The dorsal root of a nerve contains what type of neurons? Sensory (Afferent)
This part of a neuron conducts nerve impulses towards the cell body. Dendrites
An interneuron inside the spinal cord is part of the:
D. Central nervous system
The neuron pictured, below, is best described as:
Multipolar
True or false: Neurons do not physically touch one another.
True
Describe the synthesis and storage of neurotransmitters.
The neuron cell body manufactures neurotransmitters, which are stored in
secretory vesicles at the end of axon terminals.
,2|Page
An afferent neuron carries information:
From the peripheral to the central nervous system A postsynaptic neuron would be
found:
After the synapse
What is the location and function of Astrocytes?
Location: Central nervous system (CNS)
Function: Regulation of chemical environment inside CNS, forming a physical
barrier (blood-brain-barrier) by wrapping around blood capillaries
A patient's 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 or
why not?
Yes; Peripheral nerves can regenerate the length of the axon through axonal
regeneration because of the growth of Schwann cells ahead of the axon.
Name and describe what is occurring in the neuron cell membrane in section 4 of
the diagram. Include the charge of the membrane during this phase.
,3|Page
Afterpolarization (Hyperpolarization) Potassium gates are slow to close and there
is an undershoot of the potential.
The charge drops below -70mV and then returns to -70mV once at resting state
again.
At rest, a neuron plasma membrane is:
-70 mV
Which of the following is true concerning the sodium-potassium pump?
It must remain in constant operation to maintain the resting state.
True or false: A sensory neuron is signaling the body of a light touch. This means
that the strength of the action potential is weaker than usual. Explain your
reasoning.
False
Which of the following statements is true concerning the neuromuscular junction?
, 4|Page
The NMJ terminates on a muscle fiber.
What prevents continuous stimulation of a nerve synapse and how is this
accomplished?
The short existence of neurotransmitters in the synapse prevents continuous
stimulation. Some synapses contain enzymes that rapidly inactivate
neurotransmitters and other synapses rapidly absorb the neurotransmitter.
What neurotransmitter is found at the neuromuscular junctions?
Acetylcholine (ACh)
True or False: Action potentials travel in one direction within the same neuron.
True
True or False: Reflexes occur slower than a conscious decision to move from the
brain.
False
Fill in the blank: In a reflex, the neuron conducts nerve impulses along a
pathway to create a response.
motor (efferent)
Where is the integration center of a reflex located? CNS (central nervous system)
Which of the following statements is false about reflexes?
