A&P muscles #4

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Author:
rachelv
ID:
114577
Filename:
A&P muscles #4
Updated:
2011-11-05 00:48:35
Tags:
blevins
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Description:
muscles of the lower extremity
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  1. Gluteus Maximus (O&I)
    • A- Extends thigh at hip and laterally rotates thigh
    • O- Iliac crest, sacrum, coccyx, and aponeurosis of sacrospinalis
    • I- iliotibial tract of fascia lata and lateral part of linea aspera under greater trochanter (gluteal tuberosity) of femur.
  2. Gluteus medius and Gluteus minimus (O&I)
    • A- Abducts and medially rotates hip
    • O- Ilium
    • I- greater trochanter of femur.
  3. Tensor fasciae latae (O&I)
    • A- Flexes and abducts thigh at hip joint
    • O- Iliac crest
    • I- Tibia by way of the iliotibial tract
  4. Piriformis
    • Llaterally rotates and abducts thigh at hip joint
  5. Pectineus (O&I)
    • A- Flexes, adducts and medially rotates hip.
    • O- Superior ramus of pubis
    • I- Pectineal line inferior to lesser trochanter of femur.
  6. Adductor brevis (O&I)
    • A- Adducts, flexes, and medially rotates hip.
    • O- Inferior ramus of pubis
    • I- Superior half of linea aspera of femur
  7. Adductor longus (O&I)
    • A- Adducts, flexes, and medially rotates hip.
    • O-Pubic crest and pubic symphysis.
    • I- Linea aspera of femur.
  8. Adductor magnus (O&I)
    • A- Adducts, flexes, and medially rotates hip. Posterior portion extends thigh at hip joint.
    • O- Inferior ramus of pubis and ishium to ischial tuberosity
    • I- Linea aspera of femur
  9. Gracilis (O&I)
    • A- Adducts and medially rotates hip; and flexes knee
    • O- inferior ramus of pubis
    • I- Medial proximal tibia
  10. Iliacus
    • flexion at hip
    • (associated with the Psoas major muscle together known as the iliopsoas muscle)
  11. Psoas major
    • Flexion at hip
    • (associated with the Psoas major muscle together known as the iliopsoas muscle)
  12. Rectus femoris (quads) (O&I)
    • A- Extension at knee. flexion at hip.
    • O- Anterior inferior iliac spine.
    • I- Patella via quadriceps tendon and then tibial tuberosity via patellar ligament.
  13. Vastus medialis (O&I) (quads)
    • A- Extension at knee
    • O- Linea aspera of femur
    • I- Patella via quadriceps tendon and then tibial tuberosity via patellar ligament
  14. Vastus lateralis (O&I) (quads)
    • A- Extension at knee
    • O- Greater trochanter and linea aspera of femur.
    • I- Patella via quadriceps tendon and then tibial tuberosity via patellar ligament.
  15. Vastus intermedius (O&I) (quads)
    • A- Extension at knee
    • O- Anterior and lateral shaft of femur
    • I- Patella via quadriceps tendon and then tibial tuberosity via patellar ligament.
  16. Sartorius (O&I)
    • A- Flexes knee. Flexes, abducts and laterally rotates hip
    • O- Anterior superioriliac spine.
    • I- Upper medial surface of body of tibia
  17. Biceps femoris (O&I) (Hamstrings)
    • A- Flexes knee. Extends and laterally rotates hip.
    • O- Ischial tuberosity and linea aspera of femur
    • I- Head of fibula and lateral condyle of tibia
  18. Semitendinosus (O&I) (Hamstrings)
    • A- Flexes knee. Extends and medially rotates hip.
    • O- Ischial tuberosity
    • I- Proximal part of medial surface of shaft of tibia
  19. Semembranosus (O&I) (hamstrings)
    • A- Flexes knee. Extends and medially rotates hip.
    • O- Ischial tuberosity
    • I- Medial condyle of tibia
  20. Gastrocnemius (O&I)
    • A- Plantar flexes ankle. Flexes knee and inverts foot
    • O- Lateral & medial epicondyles of femur.
    • I- Calcaneus by way of calcaneal (achilles) tendon
  21. Soleus (O&I)
    • A- Plantar flexes ankle
    • O- Head of fibula and medial border of tibia
    • I- Calcaneus by way of calcaneal (achilles) tendon
  22. Peroneus longus (fibularis longus) (O&I)
    • A- Plantar flexes ankle. Everts foot.
    • O- Lateral shaft of fibula (upper2/3)
    • I- First metatarsal and first cuneiform
  23. Tibialis anterior (O&I)
    • A- Dorsiflexes ankle. Inverts foot.
    • O- Lateral condyle and proximal shaft of tibia.
    • I- First metatarsal and first (medial) cuneiform.
  24. Tibialis posterior (O&I)
    • A- Plantar flexes ankle. Adducts and inverts foot
    • O- Posterior tibia, fibula, and interosseous membrane
    • I- 2nd, 3rd, and 4th metatarsals; navicular; all 3 cuneiforms; and cuboid.

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