Changes

'''''Long digital extensor'''''

'''''Long digital extensor'''''

:'''Origin''': Extensor fossa of the femur, shared tendon of origin with the third fibular muscle

:'''Origin''': Extensor fossa of the [[Bones and Cartilages - Horse Anatomy#Femur|femur]], shared tendon of origin with the third fibular muscle

:'''Insertion''': Extensor process of the third phalanx, and the dorsal surfaces of the proximal extremities of the first and second phalanges

:'''Insertion''': Extensor process of the [[Phalanges - Horse Anatomy#Distal Phalanx|distal phalanx]], and the dorsal surfaces of the proximal extremities of the [[Phalanges - Horse Anatomy#Proximal Phalanx|proximal]] and [[Phalanges - Horse Anatomy#Middle Phalanx|middle]] phalanges

:'''Action''': Extends the digits, assists in flexing the tarsus

:'''Action''': Extends the digits, assists in flexing the [[Joints and Ligaments - Horse Anatomy#Tarsal Joint|tarsus]] (hock)

:Its tendon of insertion passes over the front of the hock, and is held in place by three annular ligaments (proximal, middle and distal) and a synovial sheath. The tendon of the lateral digital extensor joins the tendon in the approximately the middle of the third metatarsal (cannon) bone. It is also joined by two branches of the suspensory ligament before its insertion.

:Its tendon of insertion passes over the front of the [[Joints and Ligaments - Horse Anatomy#Tarsal Joint|hock]] , and is held in place by three annular ligaments (proximal, middle and distal) and a synovial sheath. The [[Tendons - Horse Anatomy#Extensors|tendon]] of the lateral digital extensor joins the tendon in the approximately the middle of the[[Bones and Cartilages - Horse Anatomy#Metacarpals and Metatarsals|third metatarsal]] (cannon) bone. It is also joined by two branches of the [[Tendons - Horse Anatomy#Flexors|suspensory ligament]] before its insertion.

'''''Lateral digital extensor'''''

'''''Lateral digital extensor'''''

:'''Origin''': Lateral patella ligament,  proximal fibula, lateral border of the tibia and the interosseous ligament. It lies between the long digital extensor muscle and the long flexor muscle of the first digit.

:'''Origin''': Lateral patella ligament,  proximal [[Bones and Cartilages - Horse Anatomy#Tibia and Fibula|fibula]], lateral border of the [[Bones and Cartilages - Horse Anatomy#Tibia and Fibula|tibia]] and the interosseous ligament. It lies between the long digital extensor muscle and the long flexor muscle of the first digit.

:'''Insertion''': Long digital extensor tendon

:'''Insertion''': [[Tendons - Horse Anatomy#Extensors|Long digital extensor tendon]]

:'''Action''': It appears to have no function, apart from maybe to support the long digital extensor.

:'''Action''': It appears to have no function, apart from maybe to support the long digital extensor.