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Limb Muscles - Horse Anatomy (view source)
Revision as of 14:58, 15 October 2012
, 14:58, 15 October 2012→Rump Muscles
====[[Hindlimb - Anatomy & Physiology#Rump Muscles|Rump Muscles]]====
====[[Hindlimb - Anatomy & Physiology#Rump Muscles|Rump Muscles]]====
The rump muscles are also made up of a number of different muscle groups and have considerably more groups than the girdle muscles.
The rump muscles are also made up of a number of different muscle groups and have considerably more groups than the girdle muscles. They extend between the ilium and the thigh. These muscles are particularly large in the horse, providing the power for forward locomotion.
'''''Superficial Gluteal'''''
'''''Superficial Gluteal'''''
:'''Innervation''':
:'''Origin''': Gluteal fascia
:'''Insertion''': Unites with the ''tensor fascia lata'', passing over the greater trochanter and attaching on the third trochanter with radiations to the femoral fascia. A synovial bursa exists between the tendinous insertion and the third trochanter.
:'''Action''': Extends the hip, retracts the limb and supports outward rotation
'''''Middle Gluteal'''''
'''''Middle Gluteal'''''
:The largest of the gluteals, it lies deep to the superficial gluteal and provides the visible shape of the croup. A sheet of tendon divides the muscle into a deep ('''accessory gluteal muscle''') and superficial part. It fuses caudally with the ''piriformis'' muscle.
:'''Innervation''':
:'''Origin''': 1st lumbar vertebra, aponeurosis of the ''longissimus'' muscle, sacrum, sacrotuberous ligament
:'''Insertion''':
::Deep - Greater trochanter and intertrochanteric crest
::Superficial - Greater trochanter
:'''Action''': Poweful hip extensor, retracts and abducts the limb. Transfers the power of the hindlimb to the trunk, allowing the horse to rear up.
'''''Tensor Muscle of the Fascia Lata'''''
'''''Tensor Muscle of the Fascia Lata'''''