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32 Cards in this Set
- Front
- Back
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What are the layers of muscles from superficial to deep? |
- superficial: pectineus, adductor longus, gracilis - middle: adductor brevis - deep: obturator externus, adductor magnus |
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What is the O and I of pectineus? |
O: pectineal crest on superior pubic ramus I: pectineal line on femur |
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What is the innervation of pectineus? |
It can be either femoral, obturator or both - 65% of the time its innervated by femoral - L2, L3 |
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What is the action of pectineus? |
- adduct and flex thigh - assist in lateral rotation of thigh |
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What is the O and I of adductor longus? |
O: angle between pubic crest and pubic symphysis I: medial lip, and middle third of linea aspera |
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What is the innveration and action of adductor longus? |
- L2, L3, L4 - obturator nerve anterior division - adducts and flexes thigh |
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What is the origin of the gracilis? |
- inferior pubic ramus - symphysis pubis, lower half |
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What is the insertion of gracilis? |
pes anserine |
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What is the innervation and actions of gracilis? |
- obturator nerve anterior division (L2,L3) - adducts thigh, flexes leg, flexes hip - medial rotation of thigh |
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What is the O and I of adductor brevis? |
- O: ischio-pubic ramus - I: medial lip, proximal third of linea aspera femoris |
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What is the innervation of adductor brevis? |
- L2,3,4 - obturator nerve anterior or posterior |
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What are the actions of the AB? |
- adducts and flexes thigh |
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What is the origin of obturator externus? |
- medial margin of obturator foramen - pubic rami - ischial inferior ramus - obturator membrane - tendinous arch |
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What is the insertion of obturator externus? |
trochanteric fossa |
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What innervates the obturator externus? |
- nerve to obturator externus - branch to obturator externus from posteiror division L3, L4 |
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What are the actions of the obturator externus? |
laterally rotates thigh and stabilizes the femoral head |
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What is the O and I of adductor magnus? |
- O: ischio-pubic ramus - I: medial lip of linea apsera femoris |
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What is the innervation of adductor magnus? |
obturator nerve posterior division |
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What is the action of the adductor magnus? |
- adduct and flex thigh - hamstring part extends thigh |
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What is the O and I of the adductor magnus; hamstring part? |
- O: ischial tub. - I: adductor tubercle |
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What is the innervation of the hamstring part of AM? |
sciatic nerve tibial division |
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What are the contents of the adductor hiatus? |
- femoral vein and artery - they descend through the anterior compartment to the hiatus compartment to the popliteal fossa when they change name to popliteal artery + vein |
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Label the numbered muscles |
1. pectineus 2. adductor brevis 3. adductor longus 4. adductor magnus 5. gracilis |
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Label the origins |
1. adductor magnus 2. pectineus 3. obturator externus 4. addcutor longus 5. gracilis 6. adductor brevis |
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What are the contents of the obturator canal? |
- obturator nerve and two divisions - obturator externus - obturator artery and vein - vascular branches - periosteal branches |
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The posterior division of the obturator nerve runs anterior to the obturator externus. T/F |
False |
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What does the posterior division of the obturator nerve innervate? |
- obturator externus muscle - cruciate ligament - fibrous capsule of the knee - ligaments behind knee - adductor magnus - adductor brevis |
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The anterior division of the obturator nerve runs superficial to _______ and deep to ______. |
adductor brevis; adductor longus |
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What is the highlighted artery? What three branches are coming off of it? |
- it is the lateral circumflex femoral artery, branching off the deep femoral artery - the three branches off it are the ascending, transverse and descending |
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What two arteries supply the head of the femur? |
1. Acetabular artery branch from obturator artery 2. acetabular artery branch from the medial circumflex artery |
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What arteries supply the neck of the femur? |
retinacular arterys off ascending branch of the medial and lateral circumflex arteries |
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label from top to bottom. |
- pectineus - adductor brevis - adductor longus - adductor magnus |
