Page 153 - Anatomy and Physiology of Farm Animals, 8th Edition

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Table 7-3. Continued
Muscle Origin Insertion Primary Actions Innervation
m. quadratus femoris Ventral sacrum Caudal proximal femur Outward rotation of hip, hip extension Sciatic n.
External obturator m. Ventral pelvis, covering Trochanteric fossa of proximal femur Outward rotation of hip, limb Obturator n.
( m. obturatorius externus ) obturator foramen adduction
Internal obturator m. (Absent in ruminants) Trochanteric fossa of proximal femur Outward rotation of hip, hip extension Sciatic n.
( m. obturatorius internus ) covering obturator foramen
inside pelvic canal
mm. gemelli Ischium Trochanteric fossa of proximal femur Outward rotation of hip, hip extension Sciatic n.
m. popliteus Lateral aspect of lateral Caudoproximal tibia Stifle flexion Tibial n.
femoral condyle
m. gastrocnemius Caudal aspect of femoral Tuber calcanei Hock extension Tibial n.
condyles
m. flexor digitorum superficialis Caudodistal femur, between Tuber calcanei, plantar aspect of Hock extension, digital flexion Tibial n.
(superficial digital flexor m.) heads of m. Gastrocnemius middle phalanx
m. tibialis cranialis Craniolateral aspect proximal Medial tarsus and metatarsus Flexion of hock Fibular n.
tibia
m. fibularis tertius Extensor fossa of distolateral Cranial aspect of distal tarsus and Flexion of hock Fibular n.
femur proximal metatarsus
m. fibularis longus Head of fibula and lateral Plantar aspect of distal tarsus and Flexion of hock Fibular n.
femoral condyle metatarsus
m. extensor digitorum longus Extensor fossa of distolateral Dorsal aspect of distal phalanx Flexion of hock, extension of digits Fibular n.
(long digital extensor m.) femur
m. extensor digitorum lateralis Proximal fibula Middle phalanx (artiodactyls), Flexion of hock, extension of digits Fibular n.
(lateral digital extensor m.) tendon of long digital extensor
( Equidae )
m. flexor digitorum profundus Proximocaudal tibia Plantar aspect distal phalanx Extension of hock, flexion of digits Tibial n.
(deep digital flexor m.)
n = nerve.