Question

this diagram is a model of a horses nervous system.
which statements are true about a horses nervous system? select all that apply.
sense organs are part of the nervous system, but they do not have nerves.
nerves are only found in the brain.
each nerve is made up of many nerve cells.

Explanation:

1. Analyze the first statement: Sense organs (like eyes, ears) are part of the nervous system and do have nerves (to transmit signals), so this statement is false.
2. Analyze the second statement: Nerves are throughout the body (e.g., in limbs, trunk) to connect the brain/spinal cord to other parts, not just in the brain, so this is false.
3. Analyze the third statement: A nerve is a bundle of many nerve cells (neurons) that work together to transmit electrical signals, so this is true.

Answer:

The true statement is: Each nerve is made up of many nerve cells.