PORTAGE LEARNING BIOL 252 A&P II Final Exam- Latest Update
2026/2027 | 200 Questions and Verified Answers | Complete Q&A
Guide | A+ Graded
MODULE 1: NERVOUS SYSTEM & NEUROPHYSIOLOGY (Questions 1–35)
1. This is a collection of cell bodies found in the peripheral nervous system.
A) Nucleus
B) Ganglion
C) Tract
D) Nerve
Correct Answer: B
Rationale: A ganglion is a cluster of neuron cell bodies located in the peripheral nervous system (PNS). In
contrast, a nucleus is a cluster of cell bodies in the central nervous system (CNS).
2. This part of the autonomic nervous system increases digestion.
A) Sympathetic
B) Parasympathetic
C) Somatic
D) Enteric
Correct Answer: B
Rationale: The parasympathetic nervous system is responsible for "rest and digest" functions, including
increasing digestive activity. It promotes peristalsis and secretion of digestive enzymes.
,3. The ventral root of a nerve contains what type of neurons?
A) Sensory (afferent)
B) Motor (efferent)
C) Interneurons
D) Both sensory and motor
Correct Answer: B
Rationale: The ventral root of a spinal nerve contains motor (efferent) neurons that carry signals from
the central nervous system to muscles and glands.
4. The part of a neuron that conducts nerve impulses away from the cell body is the:
A) Dendrite
B) Axon
C) Soma
D) Synapse
Correct Answer: B
Rationale: The axon is the long, slender projection of a neuron that conducts electrical impulses (action
potentials) away from the cell body to other neurons, muscles, or glands.
,5. A neuron going to the biceps muscle of the forearm is part of the:
A) Central nervous system
B) Peripheral nervous system
C) Autonomic nervous system
D) Enteric nervous system
Correct Answer: B
Rationale: A neuron that innervates skeletal muscle (such as the biceps) is part of the peripheral nervous
system (PNS). Specifically, it is a somatic motor neuron.
6. True or False: Neurons come into direct physical contact with one another.
A) True
B) False
Correct Answer: B
Rationale: False. Neurons do not physically touch each other. There is a microscopic gap called the
synapse between the axon terminal of one neuron and the dendrite of the next neuron.
7. Describe the function and release of neurotransmitters.
A) Neurotransmitters are stored in the cell body and released into the blood
B) Neurotransmitters are chemicals stored in secretory vesicles at the axon terminals; they are released
to carry the transmission of the nerve impulse from one neuron to another across the synapse
C) Neurotransmitters are only found in the central nervous system
, D) Neurotransmitters are released from dendrites to stimulate the cell body
Correct Answer: B
Rationale: Neurotransmitters are chemicals stored inside secretory vesicles at the end of the axon
terminals. When released, they carry the transmission of the nerve impulse from one neuron to another
across the synapse.
8. An efferent neuron carries information:
A) From the peripheral to the central nervous system
B) From the central to the peripheral nervous system
C) Between two interneurons
D) Only within the brain
Correct Answer: B
Rationale: An efferent neuron (motor neuron) carries information from the central nervous system to
the peripheral nervous system, directing muscles and glands to respond.
9. An afferent neuron carries information:
A) From the central to the peripheral nervous system
B) From the peripheral to the central nervous system
C) Between two motor neurons
D) Only within the spinal cord
Correct Answer: B
2026/2027 | 200 Questions and Verified Answers | Complete Q&A
Guide | A+ Graded
MODULE 1: NERVOUS SYSTEM & NEUROPHYSIOLOGY (Questions 1–35)
1. This is a collection of cell bodies found in the peripheral nervous system.
A) Nucleus
B) Ganglion
C) Tract
D) Nerve
Correct Answer: B
Rationale: A ganglion is a cluster of neuron cell bodies located in the peripheral nervous system (PNS). In
contrast, a nucleus is a cluster of cell bodies in the central nervous system (CNS).
2. This part of the autonomic nervous system increases digestion.
A) Sympathetic
B) Parasympathetic
C) Somatic
D) Enteric
Correct Answer: B
Rationale: The parasympathetic nervous system is responsible for "rest and digest" functions, including
increasing digestive activity. It promotes peristalsis and secretion of digestive enzymes.
,3. The ventral root of a nerve contains what type of neurons?
A) Sensory (afferent)
B) Motor (efferent)
C) Interneurons
D) Both sensory and motor
Correct Answer: B
Rationale: The ventral root of a spinal nerve contains motor (efferent) neurons that carry signals from
the central nervous system to muscles and glands.
4. The part of a neuron that conducts nerve impulses away from the cell body is the:
A) Dendrite
B) Axon
C) Soma
D) Synapse
Correct Answer: B
Rationale: The axon is the long, slender projection of a neuron that conducts electrical impulses (action
potentials) away from the cell body to other neurons, muscles, or glands.
,5. A neuron going to the biceps muscle of the forearm is part of the:
A) Central nervous system
B) Peripheral nervous system
C) Autonomic nervous system
D) Enteric nervous system
Correct Answer: B
Rationale: A neuron that innervates skeletal muscle (such as the biceps) is part of the peripheral nervous
system (PNS). Specifically, it is a somatic motor neuron.
6. True or False: Neurons come into direct physical contact with one another.
A) True
B) False
Correct Answer: B
Rationale: False. Neurons do not physically touch each other. There is a microscopic gap called the
synapse between the axon terminal of one neuron and the dendrite of the next neuron.
7. Describe the function and release of neurotransmitters.
A) Neurotransmitters are stored in the cell body and released into the blood
B) Neurotransmitters are chemicals stored in secretory vesicles at the axon terminals; they are released
to carry the transmission of the nerve impulse from one neuron to another across the synapse
C) Neurotransmitters are only found in the central nervous system
, D) Neurotransmitters are released from dendrites to stimulate the cell body
Correct Answer: B
Rationale: Neurotransmitters are chemicals stored inside secretory vesicles at the end of the axon
terminals. When released, they carry the transmission of the nerve impulse from one neuron to another
across the synapse.
8. An efferent neuron carries information:
A) From the peripheral to the central nervous system
B) From the central to the peripheral nervous system
C) Between two interneurons
D) Only within the brain
Correct Answer: B
Rationale: An efferent neuron (motor neuron) carries information from the central nervous system to
the peripheral nervous system, directing muscles and glands to respond.
9. An afferent neuron carries information:
A) From the central to the peripheral nervous system
B) From the peripheral to the central nervous system
C) Between two motor neurons
D) Only within the spinal cord
Correct Answer: B
