The Brain and Spinal Cord — Unit test

Question 4 • GA-Essentials of Healthcare

Which comparison is correct?

Answer

The spinal cord is like a highway, and the nerves are like the roads that branch off the highway.

The spinal cord is like an information center, and the nerves are like the news broadcasts from it.

The spinal cord is like the insulation inside a wall, and the nerves are like the outer shell of the wall.

The spinal cord is like a power generator, and the nerves are like the power lines connected to it.

Explanation

The spinal cord carries messages between the brain and the rest of the body, while nerves branch out to carry messages to and from different areas. This is like a highway with smaller roads branching off it. The comparison in A describes that relationship; the other choices do not accurately show how nerves connect with and carry signals through the nervous system.

AI-written and checked against the verified answer.

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