| musculus flexor pollicis brevis | <anatomy, muscle> Origin, superficial portion from flexor retinaculum of wrist, deep portion from ulnar side of first metacarpal bone; insertion, base of proximal phalanx of thumb; action, flexes proximal phalanx of thumb; nerve supply, median (superficial head) and deep branch of ulnar (deep head). Some authors consider the deep head to be the first in a series of four palmar interossei muscles of the hand. Synonym: musculus flexor pollicis brevis, short flexor muscle of thumb. (05 Mar 2000) |
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| 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) |
| musculus genioglossus | <anatomy> One of the paired lingual muscles; origin, mental spine of the mandible; insertion, lingual fascia beneath the mucous membrane and epiglottis; action, depresses and protrudes the tongue; nerve supply, hypoglossal. Synonym: musculus genioglossus, genioglossal muscle, genioglossus, musculus geniohyoglossus. (05 Mar 2000) |
| musculus geniohyoglossus | <anatomy> One of the paired lingual muscles; origin, mental spine of the mandible; insertion, lingual fascia beneath the mucous membrane and epiglottis; action, depresses and protrudes the tongue; nerve supply, hypoglossal. Synonym: musculus genioglossus, genioglossal muscle, genioglossus, musculus geniohyoglossus. (05 Mar 2000) |
| musculus geniohyoideus | <anatomy, muscle> Origin, mental spine of mandible; insertion, body of hyoid bone; action, draws hyoid forward, or depresses jaw when hyoid is fixed; nerve supply, fibres from ventral primary rami of first and second cervical spinal nerves accompanying hypoglossal. Synonym: musculus geniohyoideus, geniohyoid, geniohyoideus. Origin: Gr. The chin + E. Hyoid. (05 Mar 2000) |
| musculus glossopalatinus | <anatomy> Forms anterior pillar of tonsillar fossa; origin, oral surface of soft palate; insertion, side of tongue; action, raises back of tongue and narrows fauces; nerve supply, pharyngeal plexus (cranial root of accessory nerve). Synonym: musculus palatoglossus, glossopalatinus, musculus glossopalatinus, palatoglossus. (05 Mar 2000) |
| musculus glossopharyngeus | See: superior constrictor muscle of pharynx. (05 Mar 2000) |
| musculus gluteus maximus | <anatomy, muscle> Origin, ilium behind posterior gluteal line, posterior surface of sacrum and coccyx, and sacrotuberous ligament; insertion, iliotibial band of fascia lata (superficial three-quarters) and gluteal ridge (deep inferior one-quarter) of femur; action, extends thigh, especially from the flexed position, as in climbing stairs or rising from a sitting position; nerve supply, inferior gluteal. Synonym: musculus gluteus maximus. (05 Mar 2000) |