1,351
edits
Changes
Jump to navigation
Jump to search
Hindlimb - Anatomy & Physiology (view source)
Revision as of 14:13, 15 August 2008
, 14:13, 15 August 2008→Muscles of the Hindlimb
===Muscles of the Stifle===
Many of the muscles of the hip (see [[Girdle Musculature - Anatomy & Physiology|Girdle Musculature]] and [[Rump Muscles - Anatomy & Physiology|Rump Muscles]]) act on the stifle by inserting on structures involved with the stifle or are distal to it. There are only really two muscles that act solely on the stifle; the '''quadriceps''' and the '''popliteal'''.
'''''Quadriceps'''''
* This muscle forms the main muscle bulk on the cranial aspect of the thigh but is covered by the tensor muscle of the fascia lata, the sartorius and the medial femoral fascia.
* The quadriceps are the main extensors of the stifle and the straight muscle also flexes the hip.
* The muscle consists of four parts that have seperate points of origin but have a common single tendon, the '''patella tendon''' that inserts onto the patella and '''tibial tuberosity'''.
* The four parts are:
**'''Lateral Vastus''' - On the craniolateral side of the femur originating from the lateral aspect of the proximal femur.
**'''Medial Vastus''' - on the craniomedial side of the femur originating from the medial aspect of the proxial femur.
**'''Intermediate Vastus''' - on the cranial surface of the femur it is totally covered by the other quadriceps muscles and is the weakest muscle of the quadriceps.
**'''Straight muscle/Rectus femoris''' - originates from the ilial shaft cranial to the acetabulum and runs down to the patella tendon between the two bellies of the lateral and medial vastus.
'''''Popliteal'''''
* Function - flexor of the stifle and pronator of the leg.
* Origin - a tendinous origin from the lateral condyle of the femur.
* Insertion -a broad tendon on the medial and caudal surface of the proximal tibia.
* Location - On the caudal aspect of the stifle and runs under the lateral collateral ligament before it inserts.
==Vasculature of the Hindlimb==
==Vasculature of the Hindlimb==