Question

select all that apply
which of the following structures is part of a nerve? more than one answer may be correct.

□ neuron cell bodies
□ blood vessels
□ nerve fibers
□ connective tissue wrappings

Explanation:

• Neuron cell bodies: Nerve is mainly composed of nerve fibers (axons or dendrites of neurons), not neuron cell bodies. Neuron cell bodies are usually found in ganglia or in the central nervous system (like in the brain and spinal cord gray matter).
• Blood vessels: Nerves have their own blood supply. Blood vessels are present within a nerve to provide nutrients and oxygen to the nerve tissue.
• Nerve fibers: Nerves are bundles of nerve fibers (axons or dendrites of neurons) that are responsible for transmitting nerve impulses.
• Connective tissue wrappings: Nerves have multiple layers of connective tissue wrappings. For example, endoneurium (around individual nerve fibers), perineurium (around nerve fiber bundles - fascicles), and epineurium (around the whole nerve) to protect and organize the nerve fibers.

Answer:

• B. blood vessels
• C. nerve fibers
• D. connective tissue wrappings