A muscle in the forearm and hand that flexes the thumb. It lies in the same plane as the flexor digitorum profundus. [ http://en.wikipedia.org/wiki/Flexor_pollicis_longus_muscle ]
Term information
- FMA:38481
- SCTID:361818001
- Wikipedia:Flexor_pollicis_longus_muscle
human_reference_atlas
flexor pollicis
musculus flexor pollicis longus
flexor pollicis longus
flexor pollicis muscle
Modern humans are unique among hominids in having a flexor pollicis longus (FPL) muscle belly that is separate from that of the flexor digitorum profundus (FDP). While the FPL is not a separate muscle belly in extant great apes, a distinct tendon from the FDP belly might be present. In some individuals this tendon tend to act more like a ligament which restricts extension of the interphalangeal joint of the thumb. In orangutans there is a tendon similar in insertion and function to the FPL in humans, but which has an intrinsic origin on the oblique head of the adductor pollicis
Term relations
- forelimb zeugopod muscle
- has muscle origin some radius bone
- has muscle antagonist some extensor pollicis longus muscle
- in taxon some Homo sapiens
- part of some forelimb zeugopod
- has muscle insertion some proximal epiphysis of distal phalanx of manual digit 1