Question

______ are bundles of fibers that carry messages from the brain to the spinal cord and other parts of the body. options: nerves, skin, cartilage, tendon

Explanation:

To solve this, we analyze the function described: bundles of fibers carrying messages from the brain to the spinal cord and other body parts.

• Nerves: Nerves are made of fiber bundles (axons) and transmit electrical signals (messages) throughout the body, including from the brain to the spinal cord and other regions.
• Skin: It is the outer protective layer, not involved in message transmission.
• Cartilage: A connective tissue for support, not for message carrying.
• Tendon: Connects muscle to bone, for movement, not message transmission.

So the correct option is Nerves.

Answer:

Nerves