Horse stifle

Answer: 

A. Extensor fossa, femur [horse model]

B. Long digital extensor or fibularis tertius (peroneus tertius)

Horse Hock

Answer: 

A. Flexor canal of tarsus (pathway for lateral and caudal tibial heads of deep digital flexor tendon).

B. Flexor retinaculum (other boundaries include calcaneus laterally and sustentaculum tali of the calcaneus dorsally).

Calf Thigh

Answer:

A. Sartorius

B. Flex the hip (Secondary: cranial part extends the stifle; caudal part flexes the stifle)

Dog Thigh

Answer: 

A. Semitendinosus

B. Ischiatic tuberosity

Cat crus

Answer:

A. Long digital extensor

B. Flex the tarsal joints and extend the digits.

Dog  crus

Answer:

A. Lateral head of deep digital flexor (or lateral digital flexor)

B. Flexor tubercle/plantar surface of all the distal phalanges

Horse crus

Answer: 

A. Cunean tendon

B. Superficial digital flexor tendon

Horse foot 1

Answer: 

A. Laminar corium/dermis

B. Digital cushion

Horse foot 2

Answer: 

A. Stratum internum/epidermal lamina

B. “White line”