Gluteus
Forward impulsion, hind end action.
Semimembranous
Extends the hip and adducts hind leg. Back of back legs
Semitendious
Extends hip and hock. Flexes the stifle. Back of leg just below tail
Femoral Biceps
Extends hip and hock. Flexes and extends the stifle. Abducts hip joint. Back leg “shoulder”
Tensor Fascia Latae
Extends the stifle, flexes the hip and abducts hung leg. That dent/space between hip and back.
Tarsal Digital Extensor/Flexors
Extends and flexes the hoof. Above the knee in the back legs