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ulnar nerve
This term is a precise anatomical designation used primarily in medical, surgical, and physiological contexts. It describes a specific neural pathway, and as such, it maintains a neutral, clinical tone. In a diagnostic setting, it is frequently associated with terms like compression or entrapment, particularly when discussing the "funny bone" sensation.
Because it refers to a specific biological structure within the human body, it is treated as a countable noun in a clinical sense (e.g., referring to the ulnar nerves of both the left and right arms), though it is most commonly used in the singular when discussing the general anatomy of a single limb.
Meanings
A major nerve of the upper limb that originates from the brachial plexus and runs down the arm to the hand, providing motor function to most of the intrinsic muscles of the hand and sensory innervation to the ring and little fingers.
The patient experienced numbness in the pinky finger due to compression of the ulnar nerve at the elbow.