Medical Definition of Palmar interosseous muscle
1.
Three muscles in the hand; origin, first: ulnar side of second metacarpal; second and third: radial sides of fourth and fifth metacarpals; insertion, first: into ulnar side of index; second and third: into radial sides of ring and little fingers; action, adducts fingers toward axis of middle finger; nerve supply, ulnar.
See: flexor pollicis brevis muscle.
Synonym: musculus interosseus palmaris, musculus interosseus volaris.
(05 Mar 2000)
Lexicographical Neighbors of Palmar Interosseous Muscle
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