BIOD 152 Module 1 Exam: 50 Questions & Answers:
Latest Updated and Rationales
Question 1
Question: What is a bundle of axons found in the peripheral nervous system (PNS)
called?
• A. Tract
• B. Ganglion
• C. Nerve
• D. Nucleus
• Correct Answer: C. Nerve
• Rationale: Inside the peripheral nervous system, a collection or bundle of
nerve axons is referred to as a nerve. A bundle of axons inside the central
nervous system is referred to as a tract.
Question 2
Question: What is a collection of nerve axons found in the central nervous system
(CNS) called?
• A. Tract
• B. Nerve
• C. Ganglia
• D. Nuclei
• Correct Answer: A. Tract
• Rationale: A collection of nerve axons inside the central nervous system is
called a tract. In the peripheral nervous system, this collection is called a
nerve.
,Question 3
Question: What is a collection of neuron cell bodies located in the peripheral
nervous system (PNS) called?
• A. Nuclei
• B. Ganglia
• C. Tracts
• D. Nerves
• Correct Answer: B. Ganglia
• Rationale: Collections of cell bodies inside the peripheral nervous system
are called ganglia. Collections of cell bodies within the central nervous
system are called nuclei.
Question 4
Question: What is a collection of neuron cell bodies located within the central
nervous system (CNS) called?
• A. Ganglia
• B. Tracts
• C. Nuclei
• D. Nerves
• Correct Answer: C. Nuclei
• Rationale: Collections of neuron cell bodies inside the central nervous
system are called nuclei. In the peripheral nervous system, these collections
are referred to as ganglia.
Question 5
Question: Which division of the autonomic nervous system accelerates the
heartbeat and increases breathing rate?
, • A. Somatic nervous system
• B. Parasympathetic nervous system
• C. Sympathetic nervous system
• D. Central nervous system
• Correct Answer: C. Sympathetic nervous system
• Rationale: The autonomic nervous system is divided into sympathetic and
parasympathetic systems. The sympathetic nervous system prepares the
body for stress, emergencies, and vigorous muscular activity, which includes
accelerating the heart rate and increasing breathing.
Question 6
Question: Which of the following is a primary physiological function of the
parasympathetic nervous system?
• A. Accelerating the heart rate during stress
• B. Preparing the body for vigorous muscular activity
• C. Permitting digestion and conserving energy
• D. Directing voluntary control of skeletal muscles
• Correct Answer: C. Permitting digestion and conserving energy
• Rationale: The parasympathetic nervous system operates during normal,
non-emergency situations to permit digestion and conserve energy, while
the sympathetic nervous system handles stress responses.
Question 7
Question: What type of neurons are located in the dorsal root of a spinal nerve?
• A. Motor (Efferent) neurons
• B. Sensory (Afferent) neurons
• C. Interneurons (Association) neurons
Latest Updated and Rationales
Question 1
Question: What is a bundle of axons found in the peripheral nervous system (PNS)
called?
• A. Tract
• B. Ganglion
• C. Nerve
• D. Nucleus
• Correct Answer: C. Nerve
• Rationale: Inside the peripheral nervous system, a collection or bundle of
nerve axons is referred to as a nerve. A bundle of axons inside the central
nervous system is referred to as a tract.
Question 2
Question: What is a collection of nerve axons found in the central nervous system
(CNS) called?
• A. Tract
• B. Nerve
• C. Ganglia
• D. Nuclei
• Correct Answer: A. Tract
• Rationale: A collection of nerve axons inside the central nervous system is
called a tract. In the peripheral nervous system, this collection is called a
nerve.
,Question 3
Question: What is a collection of neuron cell bodies located in the peripheral
nervous system (PNS) called?
• A. Nuclei
• B. Ganglia
• C. Tracts
• D. Nerves
• Correct Answer: B. Ganglia
• Rationale: Collections of cell bodies inside the peripheral nervous system
are called ganglia. Collections of cell bodies within the central nervous
system are called nuclei.
Question 4
Question: What is a collection of neuron cell bodies located within the central
nervous system (CNS) called?
• A. Ganglia
• B. Tracts
• C. Nuclei
• D. Nerves
• Correct Answer: C. Nuclei
• Rationale: Collections of neuron cell bodies inside the central nervous
system are called nuclei. In the peripheral nervous system, these collections
are referred to as ganglia.
Question 5
Question: Which division of the autonomic nervous system accelerates the
heartbeat and increases breathing rate?
, • A. Somatic nervous system
• B. Parasympathetic nervous system
• C. Sympathetic nervous system
• D. Central nervous system
• Correct Answer: C. Sympathetic nervous system
• Rationale: The autonomic nervous system is divided into sympathetic and
parasympathetic systems. The sympathetic nervous system prepares the
body for stress, emergencies, and vigorous muscular activity, which includes
accelerating the heart rate and increasing breathing.
Question 6
Question: Which of the following is a primary physiological function of the
parasympathetic nervous system?
• A. Accelerating the heart rate during stress
• B. Preparing the body for vigorous muscular activity
• C. Permitting digestion and conserving energy
• D. Directing voluntary control of skeletal muscles
• Correct Answer: C. Permitting digestion and conserving energy
• Rationale: The parasympathetic nervous system operates during normal,
non-emergency situations to permit digestion and conserve energy, while
the sympathetic nervous system handles stress responses.
Question 7
Question: What type of neurons are located in the dorsal root of a spinal nerve?
• A. Motor (Efferent) neurons
• B. Sensory (Afferent) neurons
• C. Interneurons (Association) neurons
