Changes

'''''Gastrocnemius'''''

'''''Gastrocnemius'''''

:Origin - lateral head from the lateral supracondyloid crest of the femur. The medial head from the medial supracondyloid crest.

:'''Origin''': Lateral head from the lateral supracondyloid crest of the femur. The medial head from the medial supracondyloid crest.

:Insertion - Calcaneus.

:'''Insertion''': Calcaneus as part of the '''common calcaneal tendon'''

:The two bellies combine in the middle of the crus, which twists around to the dorsal aspect of the superficial digital flexor. A large bursa lies between these two tendons and a small bursa lies between the gastrocnemius and the its point of insertion on the calcaneus.

:The two bellies combine in the middle of the crus, which twists around to the dorsal aspect of the superficial digital flexor. A large bursa lies between these two tendons and a small bursa lies between the gastrocnemius and the its point of insertion on the calcaneus.

'''''Soleus'''''

'''''Soleus'''''

:Origin - the head of the fibula.

:'''Origin''': Head of the fibula

:Insertion - the gastrocnemius tendon.

:'''Insertion''': Gastrocnemius tendon

:Its function is mainly to assist the gastrocnemius.

:'''Action''': Mainly to assist the gastrocnemius

==='''Flexors of the Digits'''===

==='''Flexors of the Digits'''===

'''''Superficial digital flexor'''''

'''''Superficial digital flexor'''''

:Origin - the supracondyloid fossa of the femur.

:'''Origin''': Supracondylar fossa on the caudal femur, attached to the lateral head of the ''gastrocnemius''

:Insertion - the calcaneus, the eminences on the sides of the proximal extremity of the second phalanx, and the distal extremity of the first phalanx behind the collateral ligament of the pastern joint.

:'''Insertion''': Calcaneus, the eminences on the sides of the proximal extremity of the second phalanx, and the distal extremity of the first phalanx behind the collateral ligament of the pastern joint.

:A large synovial bursa lies under the tendon from the distal fourth of the tibia to the middle of the tarsus. A subcutaneous bursa is sometimes present at the point of the hock.

:'''Action''': Extends the digit, assists in extending the hock and flexing the stifle.

:Almost entirely tendinous, major component of the common cunean tendon which forms the caudal part of the reciprocal apparatus.

:Widens at the point of the hock to form a cap over the calcanean tuberosity. The calcaneal bursa lies between the calcaneal tuberosity and the superficial digital flexor tendon.

'''''Deep digital flexor'''''

'''''Deep digital flexor'''''

:Origin - the lateral condyle of the tibia, the caudal and medial aspect of the tibia.  

:'''Origin''': Lateral condyle of the tibia, the caudal and medial aspect of the tibia.  

:Insertion - the semilunar crest and adjacent surface of the cartilage of the third phalanx.

:'''Insertion''': Semilunar crest and adjacent surface of the cartilage of the third phalanx

:The tendon has a synovial sheath from the distal fourth of the tibia, to a third of the way down the metatarsus.

:The tendon has a synovial sheath from the distal fourth of the tibia, to a third of the way down the metatarsus.

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{{Template:Learning

{{Template:Learning

|dragster = [[Equine Crus and Pes Surface Anatomy Resources (I, II & III)]]

|dragster = [[Equine Crus and Pes Surface Anatomy Resources (I, II & III)]]

}}

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