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Pelvic Limb upper
Muscles of the pelvic limb - thigh and rump
| Question | Answer |
|---|---|
| Biceps femoris | ORIGIN - ischial tuberosity, sacrotuberous ligament INSERTION - patella and patella ligament, large fascial attachment to cranial tibial ACTION - extension of hip, flexion of stifle POSITION - lateral thigh, superficial m. |
| Semitendinosus | ORIGIN - ischial tuberosity INSERTION - medial proximal tibia ACTION - extension of hip, flexion of knee POSITION - lies between biceps femoris and semimembranosis |
| Semimembranosus | ORIGIN - ischial tuberosity INSERTIONS (2 bellies)- cranial belly = medial condyle of femur, caudal belly = medial collateral ligament, medial condyle of tibia ACTION - extension of hip, caudal head can flex stifle |
| Adductor magnus et brevis | ORIGIN - pelvic symphysis INSERTION - whole length lateral surface femur ACTION - adduction and extension of hip joint POSITION - deep to semimembranosus and gracilis |
| Quadratus femoris | ORIGIN - ventral ischium INSERTION - inter-trochantic crest ACTION- extension and lateral rotation of hip FORM - small square looking m. POSITION - superior to adductor magnus et brevis |
| Gluteus superficialis | ORIGIN - tuber sacrale of ilium, sacrotuberous ligament INSERTION - 3rd trochanter ACTION - extension of hip FORM - small, flat, rectangular POSITION - most superficial gluteal |
| Tensor fasciae latae | ORIGIN - superficially = aponeurosis m. gluteus medius, deeply = tuber coxae INSERTION = lateral femoral fascial insertion ACTION = flexion of hip, abduct limb, extension of stifle FORM - triangular m. 2 portions |
| Tensor fascia latae - POSITION (wouldn't fit on other one) | POSITION- lies between sartorius, gluteus medius and quadriceps femoris |
| Gluteus medius | ORIGIN - ilium and iliac crest INSERTION - greater trochanter ACTION - extension and medial rotation of hip POSITION - lies in the wing of the ilium |
| Gluteus profundus | ORIGIN - lateral body of ilium INSERTION - greater trochanter ACTION - extension and medial rotation of hip, some abduction FORM - broad fan shape POSITION - deepest gluteal, deep to gluteus medius nad piriformis |
| Piriformis | ORIGIN - lateral surface 3rd sacral and 1st caudal vert INSERTION - greater trochanter ACTION - extension of hip POSITION - caudal and medial to gluteus medius, deep to gluteus superficialis |
| Internal obturator (tendon and muscle belly) | ORIGIN - rami of pubis and ischium INSERTION - triple tendon apparatus (gemelli, internal and external obturator): trochanteric fossa ACTION - lateral rotation of hip FORM - fan shape POSITION - covers obturator foramen |
| Gemelli | ORIGIN - lateral body of ischium INSERTION - trochanteric fossa ACTION - lateral rotation of hip POSITION - lies beneath tendon of external obturator |
| Sartorius (2 bellies) | ORIGIN - cranial = iliac crest, caudal = tuber coxae of ilium INSERTION - cranial = tendon of rectus femoris, caudal = cranial border of tibia ACTION - flexion of hip, extension of stifle FORM - flat, straplike POSITION - superficial to quads |
| Gracillis | ORIGIN - pelvic symphysis INSERTION - cranial proximal tibia, large fascial insertion down to tarsus : calcaneal tendon ACTION - adduction of limb, extension of hip and hock, flexion of stifle POSITION - craniomedial aspect of thigh |
| Pectineus | ORIGIN - iliopubic eminence, prepubic tendon INSERTION - distal end caudal medial femur ACTION - adduction of thigh POSITION - deep m. closely attached to adductor magnus et bravis caudally (medial aspect of thigh) |
| Iliopsoas : mm. psoas major and iliacus | ORIGIN - transverse processes lumbar vert 2-7 INSERTION - lesser trochanter ACTION - flexion of hip, flexion of vertebral column |
| External obturator | ORIGIN - ventral surface of pubis and ischium INSERTION - triple tendon apparatus : trochant eric fossa ACTION - lateral rotation of hip POSITION - covers obturator foramen externally |
| Quadriceps femoris - rectus femoris | ORIGIN - body of ilium, cranial to acetabulum : crosses 2 joints INSERTION - tibial tuberosity via patella ACTION - flexion of hip, extension of stifle POSITION - cranial portion of quadriceps |
| Quadriceps femoris - position of entire muscle, action | POSITION - covers femur cranially, laterally and medially ACTION - flexion of hip, extension of stifle |
| Quadriceps femoris - vastus lateralis | ORIGIN - proximal craniolateral femur INSERTION - tibial tuberosity via patella ACTION - extension of stifle POSITION - lateral portion of quadriceps |
| Quadriceps femoris - vastus medialis | ORIGIN - proximal craniomedial femur INSERTION - tibial tuberosity via patella ACTION - extension of stifle POSITION - medial portion of quadriceps |
| Quadriceps femoris - vastus intermedius | ORIGIN - proximal craniolateral femur with vasti lateralis INSERTION - tibial tuberosity via patella ACTION - extension of stifle POSITION - deepest portion of quadriceps, lies directly on femur |
Created by:
tazza261
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