Questions with Verified Answers & Detailed Rationales
Exam Overview
Category Details
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Course BIOL251 – Human Anatomy & Physiology I w/Lab
Institution Portage Learning
Module 8 – The Nervous System (typically covering CNS, PNS, ANS, Special Senses)
Total Questions 300+
Question Types Multiple Choice, Labeling, Short Answer, Clinical Scenarios
Format Question + Correct Answer + Detailed Rationale
Exam Environment LockDown Browser
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Table of Contents
Domain Questions
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Domain I: Nervous System Overview & Histology 1-45
Domain II: Central Nervous System (Brain & Spinal Cord) 46-100
Domain III: Peripheral Nervous System & Cranial Nerves 101-140
Domain IV: Autonomic Nervous System 141-180
Domain V: Special Senses (Vision, Hearing, Taste, Smell) 181-230
Domain VI: Neural Integration & Motor Control 231-270
,Domain VII: Clinical Applications & Disorders 271-300
Domain VIII: Comprehensive Review & Mixed Topics 301-330
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DOMAIN I: NERVOUS SYSTEM OVERVIEW & HISTOLOGY
Questions 1–45
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Question 1
What are the two primary divisions of the nervous system?
A) Somatic and Autonomic
B) Central and Peripheral
C) Sympathetic and Parasympathetic
D) Afferent and Efferent
Answer: B
Rationale: The nervous system is divided anatomically into the Central Nervous System (CNS),
consisting of the brain and spinal cord, and the Peripheral Nervous System (PNS), consisting of
all nervous tissue outside the CNS.
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Question 2
,What is the functional unit of the nervous system?
A) Neuroglia
B) Neuron
C) Axon
D) Dendrite
Answer: B
Rationale: The neuron is the structural and functional unit of the nervous system. It is
specialized to receive, process, and transmit electrical signals.
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Question 3
Which part of a neuron receives signals from other neurons?
A) Axon
B) Axon terminal
C) Dendrite
D) Soma
Answer: C
Rationale: Dendrites are the receptive regions of a neuron. They receive signals from other
neurons and transmit them toward the cell body (soma).
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Question 4
Which part of a neuron conducts impulses away from the cell body?
A) Dendrite
B) Axon
C) Soma
D) Synaptic cleft
Answer: B
Rationale: The axon is the conducting region of a neuron. It transmits impulses away from the
cell body to other neurons, muscles, or glands.
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Question 5
What is the synapse?
A) The gap between two neurons
B) The cell body of a neuron
C) The covering of an axon
D) The receiving end of a neuron
Answer: A