BIOD 152 Nervous System Exam Review
2026/2027 | Verified Q&A | Graded A+
BIOD 152 Nervous System Exam Review
Verified Q&A | Graded A+ | 2026/2027
SECTION 1: NERVOUS SYSTEM ORGANIZATION
1. How does the nervous system integrate and control the other body systems?
Answer: The nervous system receives and processes information and sends out
signals to the muscles and glands to elicit an appropriate response.
Rationale: The nervous system integrates and controls other body systems by
receiving sensory input, processing that information, and then sending motor
signals to muscles and glands to produce a coordinated response.
2. How are the parts of the CNS protected?
Answer: The brain is protected by the skull, and the spinal cord is protected by the
vertebrae.
Rationale: The brain is protected by the bony skull (cranium), and the spinal cord
is protected by the vertebral column (spine).
3. What are collections of cell bodies inside the central nervous system called?
Answer: Nuclei
Rationale: In the central nervous system, collections of neuron cell bodies are
called nuclei. In the peripheral nervous system, they are called ganglia.
, 4. What is the collection of nerve axons in the central nervous system called?
Answer: Tract
Rationale: A tract is a bundle of nerve axons in the central nervous system. In the
peripheral nervous system, a bundle of axons is called a nerve.
5. What is included in the PNS?
Answer: Cranial nerves and the spinal nerves
Rationale: The PNS comprises cranial nerves, spinal nerves, ganglia, and the
brainstem. The brain and spinal cord are part of the central nervous system.
6. What are the 2 divisions of the PNS?
Answer: Efferent and Afferent
Rationale: The PNS is divided into the afferent (sensory) division and the efferent
(motor) division. The PNS receives impulses from sensory organs through the
afferent division and then relays signals to muscles and glands via the efferent
division.
7. What are the 2 divisions of the efferent division of the PNS?
Answer: Somatic and autonomic
Rationale: The efferent division of the PNS is divided into the somatic nervous
system (controls skeletal muscles, skin, and joints) and the autonomic nervous
system (controls glands and smooth muscles of internal organs).
8. What is controlled by the somatic system?
2026/2027 | Verified Q&A | Graded A+
BIOD 152 Nervous System Exam Review
Verified Q&A | Graded A+ | 2026/2027
SECTION 1: NERVOUS SYSTEM ORGANIZATION
1. How does the nervous system integrate and control the other body systems?
Answer: The nervous system receives and processes information and sends out
signals to the muscles and glands to elicit an appropriate response.
Rationale: The nervous system integrates and controls other body systems by
receiving sensory input, processing that information, and then sending motor
signals to muscles and glands to produce a coordinated response.
2. How are the parts of the CNS protected?
Answer: The brain is protected by the skull, and the spinal cord is protected by the
vertebrae.
Rationale: The brain is protected by the bony skull (cranium), and the spinal cord
is protected by the vertebral column (spine).
3. What are collections of cell bodies inside the central nervous system called?
Answer: Nuclei
Rationale: In the central nervous system, collections of neuron cell bodies are
called nuclei. In the peripheral nervous system, they are called ganglia.
, 4. What is the collection of nerve axons in the central nervous system called?
Answer: Tract
Rationale: A tract is a bundle of nerve axons in the central nervous system. In the
peripheral nervous system, a bundle of axons is called a nerve.
5. What is included in the PNS?
Answer: Cranial nerves and the spinal nerves
Rationale: The PNS comprises cranial nerves, spinal nerves, ganglia, and the
brainstem. The brain and spinal cord are part of the central nervous system.
6. What are the 2 divisions of the PNS?
Answer: Efferent and Afferent
Rationale: The PNS is divided into the afferent (sensory) division and the efferent
(motor) division. The PNS receives impulses from sensory organs through the
afferent division and then relays signals to muscles and glands via the efferent
division.
7. What are the 2 divisions of the efferent division of the PNS?
Answer: Somatic and autonomic
Rationale: The efferent division of the PNS is divided into the somatic nervous
system (controls skeletal muscles, skin, and joints) and the autonomic nervous
system (controls glands and smooth muscles of internal organs).
8. What is controlled by the somatic system?
