Name Abductor digiti minimi (hand)Pronunciation (ab-DUK-tor DIJ-I-ti MIN-I-mi) Origin/Proximal Attachment Pisiform & tendon of flexor carpi ulnaris Insertion/Distal Attachment Medial aspect of base of proximal phalanx of 5th digit May send slip to ulnar side of dorsal expansion Action/Relevance Abducts 5th digit (requires pisiform stabilized by FCU) Assists to flex 5th digit (at MCP) May assist in extension of 5th digit (at IP due to slips to extensor digitorum) Innervation Ulnar nerve - deep branch (C8, T1) | 
