Palmaris Brevis, Alternative Site

Name: Palmaris Brevis, Alternative Site

Action: Wrinkles the skin of the ulnar side of the palm of the hand and deepens the hollow of the palm by accentuating the hypothenar eminence.

Innervation: Superficial branch of the ulnar nerve, C8 and T1 (primary).

Note: This site, along with other muscles of the distal extremities, has been found to be optimal for tceMEPs. Additional muscle groups may be monitored to provide added information, but the data is generally considered to be less reliable.


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