Gross Anatomy

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  1. Quadratus Lumborum
    PA: med 1/2 of inf border of 12th rib, lumbar TPs

    DA: iliolumb lig, internal lip of iliac crest

    Ant branch T12, L1-L4

    Ext, lat flex vert colum, fix 12th rib
  2. Iliacus
    PA: sup iliac fossa, sacroiliac ligs

    DA: lesser troch to psoas major tendon

    Femoral n (l2-l4)

    Flex thigh, stabilize hip
  3. Psoas Major
    PA: TPs of lumb, sides of bodies T12-L5

    DA: Strong tendon to lesser troch

    Ant Rami L1, L2, L3

    Flex thigh, lat flex vert column, balance trunk
  4. Levator ani
    PA: body of pubis, ischial spine

    DA: perineal body, coccyx, rectum

    N to levator ani

    Most of pelv diaphragm, support viscera, resist intra-ab pressure
  5. Coccygeus
    PA: ischial spine

    DA: inf end of sacrum & coccyx

    Branches S4, S5

    Small part of pelv diaphragm to support viscera, flex coccyx
  6. Glut Max
    PA: ilium post to post gluteal line, dorsal surface of sacrum & coccyx

    DA: IT band --> Gerdys tubercle

    Inferior gluteal n (L5-S2)

    Ext thigh especially when flexed, ER, steadies thigh
  7. Glut Med
    PA: ext surface of ilium btwn ant & post gluteal lines

    DA: lat surface of g. troch

    Superior gluteal N (L5, S1)

    Abduct, IR, keep pelvis level while ipsilat leg WB
  8. Glut Min
    PA: ext surface of ilium btwn ant & inf gluteal lines

    DA: ant surface of g troch

    Superior Gluteal n (l5, s1)

    Abduct, IR, keep pelvis level
  9. tensor fascia lata
    PA: ASIS, ant iliac crest

    DA: IT band --> gerdys tubercle

    Superior Gluteal N (L5, s1)

    Abduct, IR, keep pelv level
  10. Superior & Inferior Gemellus
    • PA: sup- ischial spine
    • inf- ischial tuberosity

    DA: medial surface of g troch

    • Sup- Nerve to obturator internus (L5-s2)
    • Inf- Nerve to quadratus femoris (L4-S1)

    Laterally rotate extended thigh, ABDUCT flexed thigh
  11. Obturator internus
    PA: pelv surface of obturator membrane

    DA: Med surface of g. troch

    Nerve to obturator internus

    Lat rotate extended thigh, abduct flexed thigh
  12. Obturator externus
    PA: post to pectineus

    DA: trochanteric fossa

    Obturator n (l3,l4)

    Lat rotate, steady head
  13. Quadratus femoris
    PA: lat border of ischial tuberosity

    DA: quadrate tubercle on intertroch crest

    N to quad fem (l4-s1)

    Lat rotate thigh, steady head
  14. Piriformis
    PA: ant surface of sacrum

    DA: sup border of g troch

    Branches ant rami S1,s2

    Lat rotate extended thigh, ABDUCT flexed thigh, steady head
  15. Pectineus
    PA: sup ramus of pubis (pectineal line)

    DA: pectineal line of femur

    Femoral n L2, L3

    Adduct, flex thigh, IR
  16. Sartorius
    PA: ASIS

    DA: sup border of medial surface of tib (pes anserine)

    Femoral N L2, L3

    Flex, Abd, Ext Rot, Flex knee (4 dog shit)
  17. Rectus Femoris
    PA: AIIS

    DA: Quad tendon

    Femoral n L2, L3, L4

    • Extend leg at knee
    • ** also flex thigh
  18. Vastus lateralis
    PA: lat lip of linea aspera

    DA: Quad tendon

    Femoral n L2, L3, L4

    Extend leg at knee
  19. Vastus medialis
    PA: intertroch line, med lip of linea aspera

    DA: Quad tendon

    Femoral n L2, L3, L4

    Extend leg at knee
  20. Vastus Intermedius
    PA: ant & lat surface of femur shaft

    DA: Quad tendon

    Femoral n L2, L3, L4

    Extend leg at knee
  21. Adductor longus
    PA: Body of pubis inferior to pubic crest

    DA: middle linea aspera

    Obturator n (l2, l3, l4)

    Adduct thigh
  22. Adductor Brevis
    PA: body & inf ramus of pubis

    DA: pectineal line & proximal part of linea aspera

    Obturator n L2, l3, l4

    Adducts thigh, helps w/ flexion
  23. Adductor Magnus
    • PA: add-inf ramus of pubis, ramus of ischium
    • hammy- ischial tuberosity

    • DA: add-gluteal tub, linea aspera
    • hammy-add tubercle of femur

    • Add: obturator n- l2, l3, l4
    • Hammy: tibial part of sciatic n (l4)

    • both adduct
    • add- flex thigh
    • hammy- ext thigh
  24. gracilis
    PA: body & inf ramus of pubis

    DA: Sup part of medial surface of tibia (pes anserine)

    Obturator n (l2, l3)

    Adduct thigh, flex leg, helps IR
  25. Semitendinosus
    PA: ischial tub

    DA: pes anserine

    Tibial part of sciatic n (L5, s1, s2)

    Ext thigh, flex leg, also IR when flexed
  26. Semimembranosus
    PA: Ischial tuberosity

    DA: post part of medial condyle of tibia

    Tibial part of sciatic n (L5, s1, s2)

    Ext thigh, flex leg, also IR when flexed (SAME AS SEMITEND)
  27. Biceps Femoris
    • PA: longhead- ischial tub
    • shorthead-linea aspera

    DA: lat side of head of fibula

    • Long-tibial part of sciatic n
    • short-common fib of sciatic

    Flex leg, ER when flexed, extend thigh
  28. Tibialis Anterior
    PA: lat tibial condyle, sup lat tibia, interosseous membrane

    DA: medial surface of med. cuneiform, base 1st MT

    Deep Fibular n (l4,l5)

    Dorsiflex, Inversion
  29. Extensor Digitorum Longus
    PA: lat tibial condyle, superior anterior surface of fibula, IO membrane

    DA: mid & distal phalynx 2-5

    Deep Fibular n (l4,l5)

    • Extends 4 toes (DIP, PIP, MTP)
    • Dorsiflex
  30. Extensor Hallicus Longus
    PA: middle ant surface of fibula, IO membrane

    DA: distal phalynx great toe

    Deep fibular n (l4,l5)

    • Dorsiflex
    • Ext IP, MTP of big toe
  31. Fibularis (peroneus) Tertius - not everyone has
    PA: distal ant surface of fibula

    DA: base to shaft 5th MT

    Deep fibular n (L5,S1)

    Dorsiflex, EVersion
  32. Fibularis (peroneus) Longus
    PA: head & sup lateral fibula

    DA: medial cuneiform & base of 1st MT (same as tib ant but on inside)

    Superficial fibular (l5, s1, s2)

    Plantarflex, Eversion--- antagonist to tib ant
  33. Fibularis (peroneus) Brevis
    PA: lower lateral fibula

    DA: tuberosity of 5th MT

    Superficial fibular (L5,s1)

    Plantarflex, Eversion (same as fib longus)
  34. Gastrocnemius
    • PA: lat head- lat aspect of lat condyle of femur
    • med head- popliteal surface of femur, sup to medial condyle

    DA: post surface of calcaneous via calcaneal tendon

    Tibial n (s1,s2)

    Plantarflex when knee ext, flexes leg @ knee
  35. Soleus
    PA: post aspect of head & sup post surface of fibula ; soleal line & medial border tibia

    • DA:post surface of calcaneous via calcaneal tendon
    • * same as gastroc & plantaris

    tibial n s1,s2

    Plantarflex (independent of knee)
  36. Plantaris
    PA: inf end of lat supracondylar line of femur; oblique popliteal lig

    • DA: post surface of calcaneous via calcaneal tendon
    • *** same as gastroc & soleus

    Tibial n s1, s2

    Weakly assist gastroc
  37. Popliteus
    PA: lat condyle of femur, lat meniscus

    DA: post surface of tibia, above soleal line

    tibial n (l4-s1)

    Weakly flex knee, IR
  38. Tibialis Posterior
    PA: IO membrane, posteromed fibula, posterolat tibia

    DA: tuborosity of navicular, cuboid, cuneiforms, MT 2-4

    Tibial n (l4,l5)

    Plantarflex, INversion

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Gross Anatomy
2012-02-25 00:26:51
gross anatomy

gross quiz
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