EEOB 2510 Lecture Notes - Lecture 8: Plantaris Muscle, Abductor Digiti Minimi Muscle Of Hand, Flexor Digitorum Brevis Muscle

• School: Ohio State University
• Department: Evol, Ecology & Organismal Bio
• Course: EEOB 2510
• Professor: Burgoon Jennifer

Document Summary

Crural fascia- deep fascia that invests the leg, help forms the issue septa of the leg. Divisded into three muscles groups by issue septa. Three muscle groups: anterior, lateral and posterior crural (leg) muscles. Anterior compartment of the leg: dorsilexion of the foot and extensor of the toes; all innervated by the deep ibular (peroneal) nerve: tibialis anterior- most medial muscle in anterior compartment. Acion: dorsilexes foot; inverts foot: extensor digitorum longus-crosses ankle joint. Acion: extends digits 2-5; dorsilexes foot: extensor hullucis longus. Acion: extends hallux (big toe); dorsilexes foot: fibularis (peroneus) terius-most lateral muscle in anterior compartment. Lateral compartment of leg: - eversion of the foot and plantar lexion: fibularis (peroneus) longus- long; most supericial, fibularis (peroneus) brevis- short; most deep. Acion: plantar lexes foot; very important as the everters of foot. Posterior compartment of leg: all innervated by ibial nerve: supericial group- plantar lexion, gastrocnemius- two heads (tricep surae); most supericial; arises on the femur.