7 6 ' EQUINE ANATOMY. 



SEMI-TENDINOSUS . 



Origin. From sacral spine, sacro-sciatic ligament (with long 

 vastus and tuber ischii). 

 Insertion. Anterior crest of tibia. 

 Action. Same as preceding. 

 Nerve. Great sciatic. 



SEMI-MEMBRANOSUS . 



Origin. Tuberosity and inferior face of body of ischium and 

 coccygeal aponeurosis. 



Insertion. Eminence above internal condyle of femur. 



Action. Adductor and extensor of thigh and an adjunct in 

 rearing. 



Nerve. Great sciatic. 



INTERNAL FEMORAL REGION. SARTORIUS. 



Origin. Iliac aponeurosis near tendon of psoas parvus. 

 Insertion. Internal patellar ligament. 

 Action. Adducts leg and flexes femur. 

 Nerve. Obturator. 



GRACILIS. 



Origin. Ischio-pubic symphysis. 



Insertion. With preceding and internal tuberosity of tibia. 

 Action. Adductor of leg and tensor of tibial aponeurosis. 

 Nerve. O bturator . 



PECTINEUS. 



Origin. Inferior face of pubes of pubo-femoral ligament. 

 Insertion. Inner surface of femur near nutrient foramen. 

 Action. Adductor, flexor and internal rotator of femur. 

 Nerve. Obturator. 



ADDUCTOR BREVIS. 



Origin. Inferior face of pubis. 



Insertion. Quadrilateral line on posterior surface of femur. 



Action. As name implies. 



Nerve. Obturator. 



ADDUCTOR LONGUS. 



Origin. Lower face of ischium and symphysis. 



Insertion. With preceding, and internal condyle of femur. 



