Musculospiral Nerve (Noun)
Meaning
Largest branch of the brachial plexus; extends down the humerus to the lateral epicondyle where it divides into one branch that goes to the skin on the back of the hand and another that goes to the underlying extensor muscles.
Classification
Nouns denoting body parts.
Examples
- The musculospiral nerve originates from the posterior cord of the brachial plexus and runs down the humerus, extending to the lateral epicondyle.
- Injury to the musculospiral nerve can cause weakness or paralysis in the muscles of the forearm and wrist.
- During surgical procedures involving the elbow, the musculospiral nerve is at risk of being damaged due to its proximity to the lateral epicondyle.
- The musculospiral nerve provides motor innervation to the extensor muscles of the forearm and wrist, enabling finger extension and wrist movement.
- The terminal branches of the musculospiral nerve also supply sensory innervation to the skin on the back of the hand, specifically the dorsal aspect of the hand.