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Muscles of the Crus - Horse Anatomy (view source)
Revision as of 13:13, 31 October 2012
, 13:13, 31 October 2012→Flexors of the tarsus
==='''Flexors of the tarsus'''===
==='''Flexors of the tarsus'''===
'''''Cranial Tibial'''''
'''''Cranial Tibial (Tibialis Cranialis)'''''
:Origin - the lateral condyle and tuberosity of the tibia.
:'''Origin''': Lateral condyle and tuberosity of the tibia
:Insertion - the metatarsal tuberosity and the combined first and second tarsal bones.
:'''Insertion''': Bifurcates into a medial and lateral branch. The lateral branch inserts on the metatarsal tuberosity. The medial branch inserts on the combined first and second tarsal bones. The medial branch is also known as the '''cunean tendon'''.
:'''Action''': Flexes the tarsus
:Its tendinous insertion has a synovial sheath, and a bursa is present between its medial branch and the medial ligament of the hock.
:Its tendinous insertion has a synovial sheath, and a bursa is present between its medial branch and the medial ligament of the hock.
:In the horse, its fibres join with the third fibular muscle proximal to the tarsus.
'''''Peroneus tertius'''''
'''''Peroneus tertius'''''
:Origin - extensor fossa of the femur.
:'''Origin''': Extensor fossa of the femur
:Insertion - proximal extremity of the third metatarsal bone and third tarsal bone. Also the calcaneus and fourth tarsal bones.
:'''Insertion''': Proximal extremity of the third metatarsal and third tarsal bone. Also the calcaneus and fourth tarsal bones.
:An almost exclusive tendinous muscle that plays an important part in the stay apparatus.
:'''Action''': An almost exclusively tendinous muscle that plays an important part in the stay apparatus.
==='''Extensors of the Digits'''===
==='''Extensors of the Digits'''===