musculospiral nerve

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musculospiral nerve

A diagram shows the musculospiral nerve extending down the arm.

Definition
  1. Noun:
    • A major nerve of the upper limb: The musculospiral nerve is the largest branch of the brachial plexus. It travels down the humerus bone to the lateral epicondyle, where it splits into terminal branches responsible for sensation in part of the hand and motor function to specific extensor muscles.
Usage Examples
  • Noun:
    • An injury to the musculospiral nerve can cause wrist drop.
    • The surgeon carefully identified the musculospiral nerve during the procedure.
Advanced Usage
  • Clinical/Anatomical Context: The term is primarily used in medical, anatomical, and clinical settings. It is a specific anatomical name.
    • The fracture was concerning due to its proximity to the musculospiral nerve.
Variants and Related Words
  • Radial nerve: This is the modern and more commonly used clinical term for the musculospiral nerve. "Musculospiral nerve" is considered a traditional or descriptive anatomical name.
    • The radial nerve (musculospiral nerve) innervates the triceps brachii muscle.
Synonyms
  • Radial nerve: The direct and contemporary synonym.
Related Terms (Anatomical)
  • Brachial plexus: The network of nerves from which the musculospiral nerve originates.
  • Humerus: The arm bone alongside which the nerve travels.
  • Lateral epicondyle: The bony prominence of the humerus where the nerve divides.
  • Extensor muscles: The muscles supplied by one of its terminal branches.
musculospiral nerve

A diagram shows the musculospiral nerve extending down the arm.

Noun
  1. 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

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