Spinal Cord and Nerves Worksheet
A Grade 9 Science worksheet focusing on the structure and function of the spinal cord and peripheral nerves, including reflexes and nerve impulse transmission.
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Topics
Spinal Cord and Nerves
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Read each question carefully and answer to the best of your knowledge. This worksheet covers the structure and function of the spinal cord and nerves.
1. Which part of the nervous system is responsible for transmitting signals between the brain and the rest of the body?
Cerebellum
Spinal Cord
Brainstem
Cerebrum
2. What is the primary function of a motor neuron?
To carry sensory information to the brain
To transmit signals from the central nervous system to muscles or glands
To integrate information within the central nervous system
To produce myelin sheath
3. The spinal cord is protected by the vertebral column, which is made up of individual bones called .
4. A rapid, involuntary response to a stimulus that does not involve conscious thought is called a .
5. The fatty substance that insulates axons and speeds up nerve impulse transmission is called .
6. Sensory neurons carry signals away from the central nervous system.
True
False
7. The peripheral nervous system consists of the brain and spinal cord.
True
False
8. Describe the difference between white matter and gray matter in the spinal cord.
9. Explain the role of interneurons in a reflex arc.