Caudal Muscles of the thigh

Biceps Femoris

One of the strongest muscles of the whole body. It is the longest and widest of the muscle of the thigh. Associated with popliteal node and common calcanean tendon.

Biceps Femoris

Origin: Ischiatic tuberosity

Insertion: Facia lata and crural facia, Patella, Tuber calcanei

Action: Extends the hip, hock. Flexor of the stifle.

Innervation: Ischiatic Nerve

Abductor Cruris Caudalis

The strap like “Fire-Hydrant” muscles deep to the biceps femoris.

Abdcutor Cruris Caudalis

Origin: Distal end of Sacrotuberous Ligament

Insertion: Crural facia (Lateral)

Action: Abduct the leg

Innervation: Ischiatic & Fibular Nerve

Semitendinosus

It is a powerful muscle which forms the greater part of the caudal margin of the buttock

Semitendinosus

Origin: Ischiatic tuberosity

Insertion: Body of Tibia (medial) & Tuber Calcanei

Action: E.Hip and hock and F.S

Innervation: Ischiatic Nerve

Semimembranosus

Purely fleshy in character. It has two bellies. It is covered by Gracilis Muscle.

Semimembranosus

Origin: Ischiatic tuberosity

Insertion: Medial lip of rough surface of femur & Tibia (Proximal)

Action: Extends the hip, Extends the stifle(Femur), Extend and flexes stifle (Tibia)

Innervation: Ischiatic Nerve

Hamstring Muscle

Biceps femoris, Semitendinosus(medial), Semimembranosus(lateral).