Lab 7 Musculature Flashcards
Gluteus Maximus insertion
- Gluteal tuberosity of femur
2. Lateral condyle of tibia via iliotibial tract
Gluteus Maximus action
- Extension of hip
2. External rotation of extended hip
Gluteus Maximus nerve supply
Inferior gluteal nerve
Gluteus Maximus blood supply
Superior and inferior gluteal arteries
Gluteus Maximus origin
- Posterior sacrum and sacrotuberous ligament
2. Iliac crest, posterior to superior gluteal line
Gluteus medius origin
Posterior ilium, between superior and middle gluteal lines
Gluteus medius insertion
Greater trochanter of femur
Gluteus medius actions
Abduction and internal rotation of hip
Gluteus medius nerve supply
Superior gluteal nerve
Gluteus medius blood supply
Superior gluteal artery
Gluteus minimus origin
Posterior ilium, between middle and inferior gluteal lines
Gluteus minimus insertion
Anterior surface of greater trochanter
Gluteus minimus actions
Abduction and internal rotation of hip
Gluteus minimus nerve supply
Superior gluteal nerve
Gluteus minimus blood supply
Superior gluteal artery
Tensor fascia lata origin
Anterior portion of iliac crest
Tensor fascia lata insertion
Lateral condyle of tibia via iliotibial tract
Tensor fascia lata actions
- Stabilizes extended knee
- Flexes hip
- Abducts hip
- Internally rotates hip
Tensor fascia lata nerve supply
Superior gluteal nerve
Tensor fascia lata blood supply
Superior gluteal artery
Piriformis origin
Anterior sacrum
Piriformis insertion
Greater trochanter of femur
Piriformis actions
External rotation of hip
Piriformis nerve supply
Anterior rami S1 and S2
Piriformis blood supply
Gluteal arteries
Quadratus femoris origin
Ischial tuberosity
Quadratus femoris insertion
Quadrate tubercle
Quadratus femoris actions
External rotation of hip
Quadratus femoris nerve supply
Nerve to quadratus femoris
Quadratus femoris blood supply
Gluteal arteries
Obturator internus origin
Internal (posterior) surface of obturator membrane and rim of obturator foramen
Obturator internus insertion
Greater trochanter of femur
Obturator internus actions
External rotation of hip
Obturator internus nerve supply
Nerve to obturator internus
Obturator internus blood supply
Gluteal arteries
Obturator externus origin
External (anterior) surface of obturator membrane and rim of obturator foramen
Obturator externus insertion
Greater trochanter of femur
Obturator externus actions
External rotation of hip
Obturator externus nerve supply
Obturator nerve
Obturator externus blood supply
Gluteal arteries
Semimembranosus origin
Ischial tuberosity
Semimembranosus insertion
Posterior medial tibial condyle
Semimembranosus actions
- Flexion of knee
- Internal rotation of flexed knee
- Extension of hip
Semimembranosus nerve supply
Tibial division of sciatic nerve
Semimembranosus blood supply
Femoral profunda artery
Semitendinosus origin
Ischial tuberosity
Semitendinosus insertion
Pes anserinus
Semitendinosus actions
- Flexion of knee
- Internal rotation of flexed knee
- Extension of hip
Semitendinosus nerve supply
Tibial division of sciatic nerve
Semitendinosus blood supply
Femoral profunda artery
Biceps femoris origin
Long head: ischial tuberosity
Short head: linea aspera
Biceps femoris insertion
- Lateral surface of head of fibula
2. Lateral condyle of tibia
Biceps femoris actions
Both heads: flexion of knee and external rotation of flexed knee
Long head: (also) extension of hip
Biceps femoris nerve supply
Long head: tibial division of sciatic nerve
Short head: common peroneal division of sciatic nerve
Biceps femoris blood supply
Femoral profunda artery
Sartorius origin
ASIS (Anterior superior iliac spine)
Sartorius insertion
Pes anserinus
Sartorius actions
- Flexion, abduction, external rotation of hip
2. Flexion and internal rotation of knee
Sartorius nerve supply
Femoral nerve
Sartorius blood supply
Femoral artery
Rectus femoris origin
AIIS (anterior inferior iliac spine) and ilium above acetabulum
Rectus femoris insertion
Patella
Tibial tuberosity via patellar ligament
Rectus femoris actions
Extension of knee and flexion of hip
Rectus femoris nerve supply
Femoral nerve
Rectus femoris blood supply
Femoral artery
Vastus lateralis origin
- Linea aspera
2. Greater trochanter and intertrochanteric line of femur
Vastus lateralis insertion
Patella and tibial tuberosity via patellar ligament
Vastus lateralis actions
Extension of knee
Vastus lateralis nerve supply
Femoral nerve
Vastus lateralis blood supply
Femoral artery
Vastus medialis origin
Linea aspera and intertrochanteric line of femur
Vastus medialis insertion
Patella and tibial tuberosity via patellar ligament
Vastus medialis actions
Extension of knee
Vastus medialis nerve supply
Femoral nerve
Vastus medialis blood supply
Femoral artery
Vastus intermedius origin
Anterior and lateral femoral shaft
Vastus intermedius insertion
Patella and tibial tuberosity via patellar ligament
Vastus intermedius actions
Extension of knee
Vastus intermedius nerve supply
Femoral nerve
Vastus intermedius blood supply
Femoral artery
Adductor longus origin
Anterior surface of body of pubis
Adductor longus insertion
Linea aspera
Adductor longus actions
Adduction and flexion of hip
Adductor longus nerve supply
Obturator nerve
Adductor longus blood supply
Femoral profunda artery
Adductor Magnus anterior head origin
Inferior ramus of pubis
Adductor Magnus anterior head insertion
Linea aspera of femur
Adductor Magnus anterior head actions
Adduction and flexion of hip
Adductor Magnus anterior head nerve supply
Obturator nerve
Adductor Magnus anterior head blood supply
Femoral profunda artery
Adductor Magnus posterior head origin
Ramus of ischium and ischial tuberosity
Adductor Magnus posterior head insertion
Adductor tubercle of femur
Adductor Magnus posterior head actions
Adduction and extension of hip
Adductor Magnus posterior head nerve supply
Tibial division of sciatic nerve
Adductor Magnus posterior head blood supply
Femoral profunda artery
Adductor brevis origin
Body and inferior ramus of pubis
Adductor brevis insertion
Linea aspera
Adductor brevis actions
Adduction and flexion of hip
Adductor brevis nerve supply
Obturator nerve
Adductor brevis blood supply
Femoral profunda artery
Pectineus origin
Superior ramus of pubis
Pectineus insertion
Between lesser trochanter and linea aspera
Pectineus actions
Adduction and flexion of hip
Pectineus nerve supply
Femoral nerve
Pectineus blood supply
Femoral profunda artery
Gracilis origin
Body and inferior ramus of pubis
Gracilis insertion
Pes anserinus
Gracilis actions
- Adduction of hip
- Flexion of knee
- Internal rotation of flexed knee
Gracilis nerve supply
Obturator nerve
Gracilis blood supply
Femoral profunda artery