| musculus fibularis tertius | <anatomy, muscle> Origin, in common with musculus extensor digitorum longus; insertion, dorsum of base of fifth metatarsal bone; nerve supply, deep branch of peroneal; action, assists in dorsiflexion and eversion of foot. Synonym: musculus fibularis tertius, musculus peroneus tertius, third peroneal muscle. (05 Mar 2000) |
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| musculus flexor accessorius | <anatomy, muscle> Origin, by two heads from the lateral and medial borders of the inferior surface of the calcaneus; insertion, tendons of flexor digitorum longus; action, assists long flexor; nerve supply, lateral plantar. Synonym: musculus flexor accessorius, musculus quadratus plantae, accessory flexor muscle of foot, caro quadrata sylvii, musculus pronator pedis, plantar quadrate muscle, quadrate muscle of sole. (05 Mar 2000) |
| musculus flexor carpi radialis | <anatomy, muscle> Origin, common flexor origin of the medial condyle of humerus; insertion, anterior surface of the base of the second and most often sending a slip to that of the third metacarpal bone; action, flexes and abducts wrist radialward; nerve supply, median; its tendon travels in its own canal roofed by a layer of the transverse carpal ligament. Synonym: musculus flexor carpi radialis, radial flexor muscle of wrist. (05 Mar 2000) |
| musculus flexor carpi ulnaris | <anatomy, muscle> Origin, humeral head from medial condyle of humerus, ulnar head from olecranon and upper three-fifths of posterior border of ulna; insertion, pisiform bone, but is continued to the fifth metacarpal bone via the pisometacarpal ligament; action, flexes and abducts wrist ulnarward; nerve supply, ulnar. Synonym: musculus flexor carpi ulnaris, ulnar flexor muscle of wrist. (05 Mar 2000) |
| musculus flexor hallucis longus | <anatomy, muscle> Origin, lower two-thirds of posterior surface of fibula; insertion, base of distal phalanx of great toe; action, flexes great toe; nerve supply, medial plantar. Synonym: musculus flexor hallucis longus, long flexor muscle of great toe, musculus flexor longus hallucis. (05 Mar 2000) |
| musculus flexor longus hallucis | <anatomy, muscle> Origin, lower two-thirds of posterior surface of fibula; insertion, base of distal phalanx of great toe; action, flexes great toe; nerve supply, medial plantar. Synonym: musculus flexor hallucis longus, long flexor muscle of great toe, musculus flexor longus hallucis. (05 Mar 2000) |
| musculus flexor longus pollicis | <anatomy, muscle> Origin, anterior surface of middle third of radius; insertion, distal phalanx of thumb; action, flexes distal phalanx of thumb; nerve supply, median palmar interosseous. Synonym: musculus flexor pollicis longus, long flexor muscle of thumb, musculus flexor longus pollicis. (05 Mar 2000) |
| musculus flexor pollicis longus | <anatomy, muscle> Origin, anterior surface of middle third of radius; insertion, distal phalanx of thumb; action, flexes distal phalanx of thumb; nerve supply, median palmar interosseous. Synonym: musculus flexor pollicis longus, long flexor muscle of thumb, musculus flexor longus pollicis. (05 Mar 2000) |
| musculus flexor profundus | <anatomy, muscle> Origin, anterior surface of upper third of ulna; insertion, by four tendons, piercing those of the superficialis, into base of distal phalanx of each finger; action, flexes distal interphalangeal joint of fingers; nerve supply, ulnar and median (anterior interosseous muscle). Synonym: musculus flexor digitorum profundus, deep flexor muscle of fingers, musculus flexor profundus. (05 Mar 2000) |
| musculus flexor sublimis | <anatomy, muscle> Origin, humeroulnar head from the medial epicondyle of the humerus, the medial border of the coronoid process, and a tendinous arch between these points, radial head from the oblique line and middle third of the lateral border of the radius; insertion, by four split tendons, passing to either side of the profundus tendons, into sides of middle phalanx of each finger; action, flexes proximal interphalangeal joint of the fingers; nerve supply, median. Synonym: musculus flexor digitorum superficialis, musculus flexor digitorum sublimis, musculus flexor sublimis, superficial flexor muscle of fingers. (05 Mar 2000) |
| musculus frontalis | See: occipitofrontalis muscle. (05 Mar 2000) |
| musculus fusiformis | <anatomy> One that has a fleshy belly, tapering at either extremity. Synonym: musculus fusiformis, spindle-shaped muscle. (05 Mar 2000) |
| musculus gastrocnemius | <anatomy, muscle> Origin, by two heads (lateral and medial) from the lateral and medial condyles of the femur; insertion, with soleus by tendo calcaneus into lower half of posterior surface of calcaneus; action, plantar flexion of foot; nerve supply, tibial. Synonym: musculus gastrocnemius, gastrocnemius. (05 Mar 2000) |
| musculus gemellus inferior | <anatomy, muscle> Origin, tuberosity of ischium; insertion, tendon of musculus obturator internus; action, rotates thigh laterally; nerve supply, sacral plexus. Synonym: musculus gemellus inferior, gemellus. (05 Mar 2000) |
| musculus gemellus superior | <anatomy, muscle> Origin, ischial spine and margin of lesser sciatic notch; insertion, tendon of musculus obturator internus; action, rotates thigh laterally; nerve supply, sacral plexus. Synonym: musculus gemellus superior, gemellus. (05 Mar 2000) |