Term
| What is the origin of the sartorius muscle? |
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Definition
| anterior superior iliac spine (ASIS) |
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Term
| What is the insertion of the sartorius muscle? |
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Definition
| medial part of the proximal tibia |
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Term
| What is the nerve supply of the sartorius muscle? |
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Definition
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Term
| What is the action of the sartorius muscle? |
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Definition
| flexes, abducts and laterally rotates thigh, and flexes the knee and medially rotates at knee joint |
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Term
| What is the iliopsoas muscle composed of? |
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Definition
| psoas major, psoas minor, and iliacus muscles |
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Term
| What is the origin of the iliopsoas muscle? |
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Definition
PSOAS muscle - transverse processes of lumbar vertebrae and sides of bodies of T12-L5
ILIACUS muscle - superior 2/3 of iliac fossa, ala of sacrum, and anterior sacroiliac ligaments |
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Term
| What is the insertion of the iliopsoas muscle? |
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Definition
| merge to insert on lesser trochanter of femur |
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Term
| What is the nerve supply of the iliopsoas muscle? |
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Definition
| iliacus (L2,L3), psoas major (lumbar plexus L2,L3) |
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Term
| What is the action of the iliopsoas muscle? |
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Definition
| major flexor of the thigh. If the trunk is fixed, this muscle flexes the trunk on the thigh as in sitting up from a lying down position |
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Term
| What is the origin of the pectineus muscle? |
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Definition
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Term
| What is the insertion of the pectineus muscle? |
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Definition
| upper end of linea aspera of shaft of femur |
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Term
| What is the nerve supply of the pectineus muscle? |
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Definition
| femoral nerve (L2, L3, L4) and possibly obturator nerve |
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Term
| What is the action of the pectineus muscle? |
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Definition
| adducts and flexes and rotates medially thigh at hip joint |
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Term
| What is the origin of the rectus femoris muscle? |
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Definition
| anterior inferior iliac spine (AIIS) and above acetabulum |
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Term
| What is the insertion of the rectus femoris muscle? |
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Definition
| quadriceps tendon to patella then tibial tuberosity |
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Term
| What is the nerve supply to the rectus femoris muscle? |
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Definition
| femoral nerve (L2, L3, L4) |
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Term
| What is the action of the rectus femoris muscle? |
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Definition
| extends knee and flexes thigh at hip joint |
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Term
| What is the origin of the vastus lateralis muscle? |
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Definition
| upper end and shaft of femur |
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Term
| What is the insertion of the vastus lateralis muscle? |
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Definition
| quadriceps tendon to patella then tibial tuberosity |
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Term
| What is the nerve supply of the vastus lateralis muscle? |
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Definition
| femoral nerve (L2, L3, L4) |
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Term
| What is the action of the vastus lateralis muscle? |
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Definition
| extends leg at knee joint |
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Term
| What is the origin of the vastus medialis? |
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Definition
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Term
| What is the inerstion of the vastus medialis muscle? |
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Definition
| quadriceps tendon to patella then tibial tuberosity |
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Term
| What is the innervation of the vastus medialis muscle? |
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Definition
| femoral nerve (L2, L3, L4) |
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Term
| What is the action of the vastus medialis muscle? |
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Definition
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Term
| What is the origin of the vastus intermedius muscle? |
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Definition
| anterior and lateral proximal femur shaft |
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Term
| What is the insertion of the vastus intermedius muscle? |
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Definition
| quadriceps tendon to patella then tibial tuberosity |
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Term
| What is the innervation of the vastus intermedius muscle? |
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Definition
| femoral nerve (L2, L3, L4) |
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Term
| What is the action of the vastus intermedius muscle? |
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Definition
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Term
| What is the origin of the gracilis muscle? |
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Definition
| rami of pubis and ischium |
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Term
| What is the insertion of the gracilis muscle? |
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Definition
| upper medial shaft of tibia |
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Term
| What is the action of the gracilis? |
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Definition
| adducts thigh and flexes leg at knee and assists in medial rotation |
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Term
| What is the nerve supply of the gracilis muscle? |
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Definition
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Term
| What is the blood supply of the gracilis muscle? |
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Definition
| profunda femoris and obturator arteries |
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Term
| What is the origin of the adductor longus muscle? |
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Definition
| body of pubis medial to pubic tubercle |
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Term
| What is the insertion of the adductor longus muscle? |
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Definition
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Term
| What is the action of the adductor longus? |
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Definition
| adducts and flexes thigh and assists in medial rotation of hip joint |
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Term
| What is the nerve supply of the adductor longus? |
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Definition
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Term
| What is the blood supply of the adductor longus? |
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Definition
| profunda femoris and obturator arteries |
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Term
| What is the origin of the adductor brevis muscle? |
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Definition
| body and inferior ramus of pubis |
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Term
| What is the insertion of the adductor brevis? |
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Definition
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Term
| What is the action of the adductor brevis? |
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Definition
| adducts and flexes thigh and assists in medial rotation of thigh |
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Term
| What is the nerve supply of adductor brevis? |
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Definition
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Term
| What is the blood supply of the adductor brevis? |
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Definition
| profunda femoris and obturator arteries |
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Term
| What is the origin of the adductor magnus? |
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Definition
| ischial and pubic rami and ischial tuberosity |
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Term
| What is the insertion of the adductor magnus? |
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Definition
| femur shaft and adductor tubercle of femur |
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Term
| What is the action of the adductor magnus? |
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Definition
| adducts , medially rotates and flexes thigh, hamstring part extends thigh and laterally rotates at hip |
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Term
| What is the nerve supply of the adductor magnus? |
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Definition
| adductor - obturator n. ; hamstring - branch of tibial division of sciatic nerve |
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Term
| What is the blood supply of adductor magnus? |
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Definition
| profunda femoris and obturator arteries |
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Term
| What is the origin of the obturator externus? |
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Definition
| obturator membrane and pubic and ischial rami |
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Term
| What is the insertion of the obturator externus? |
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Definition
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Term
| What is the action of the obturator externus? |
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Definition
| laterally rotates thigh at hip joint, steadies head of femur in acetabulum |
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Term
| What is the nerve supply of obturator externus? |
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Definition
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Term
| What is the blood supply of the obturator externus? |
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Definition
| profunda femoris and obturator arteries |
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Term
| What is the origin of the biceps femoris? |
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Definition
| short head - distal femur; long head - ischial tuberosity |
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Term
| What is the insertion of the biceps femoris? |
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Definition
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Term
| What is the action of the biceps femoris? |
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Definition
| extends and laterally troates thigh at hip (long) and flexes and laterally rotates leg at knee (after flexing) |
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Term
| What is the nerve supply of the biceps femoris? |
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Definition
| long head - tibial division of the sciatic nerve (S1 - S2); short head - common fibular division of sciatic nerve (L5, S1-S2) |
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Term
| What is the blood supply of the biceps femoris? |
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Definition
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Term
| What is the origin of the semitendinosus? |
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Definition
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Term
| What is the insertion of the semitendinosus? |
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Definition
| upper medial portion of tibial shaft |
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Term
| What is the action of the semitendinosus? |
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Definition
| extends thigh at hip and flexes and medially rotates leg at knee joint (after flexing) |
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Term
| What is the nerve supply of the semitendinosus? |
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Definition
| tibial division of sciatic nerve |
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Term
| What is the blood supply of the semitendinosus? |
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Definition
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Term
| What is the origin of the semimembranosus? |
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Definition
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Term
| What is the insertion of the semimembranosus? |
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Definition
| posterior medial ascpect of medial condyle of tibia |
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Term
| What is the action of the semimembranosus? |
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Definition
| extends thigh at hip and flexs and medially rotates leg at the knee joint (after flexing) |
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Term
| What is the nerve innervation of the semimembranosus? |
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Definition
| tibial division of the sciatic nerve (L5, S1-S2) |
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Term
| What is the blood supply of the semimembranosus? |
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Definition
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