Question

large bundles of axons from several spinal nerves in the brachial plexus are termed
dermatomes.
trunks.
rami.
cords.
roots.

Explanation:

• Dermatomes: Areas of skin innervated by a single spinal nerve, not bundles of axons.
• Trunks: In the brachial plexus, trunks are large bundles formed by merging spinal nerve axons.
• Rami: Smaller branches (e.g., dorsal/ventral rami) of spinal nerves, not large bundles.
• Cords: Formed from divisions (which come from trunks), not the initial large bundles.
• Roots: Individual spinal nerve roots (anterior/posterior), not merged bundles.

Answer:

trunks.