O&I lower extremity Flashcards
Anterior fascial compartment of thigh mm
Sartorius
quadriceps femoris:
Rec Fem
Vastus lateralis
V medialis
V intermedius
Pectineus
Posterior fascial compartment of thigh mm
Hamstring mm:
Biceps femoris (Long/short head)
Semitendinosus
Semimembranosus
Medial fascial compartment of thigh mm
Gracilis
Adductor magnus
Add. longus
Add. brevis
Obturator externus (deep 6)
Sartorius
ASIS
Pes asnerine
Femoral n.
Rectus femoris
(only quad that crosses the hip joint)
Straight head: AIIS
Reflected head: ilium above acetabulum (deep to straight head)
Quadriceps tendon to tib tube.
Femoral n.
Vastus lateralis
Intertrochanteric line, inf greater trochanter
Lateral patella to tib tube
Femoral n.
Vastus medialis
intertrochanteric line, medial lip of linea aspera
Medial patella to tib tube
femoral n.
Vastus intermedius
Anterior and lateral surfaces of shaft of femur
Tibial tuberosity
Femoral n.
Articularis genu (no action)
Pulls articular capsule up in knee ext. to avoid pinching under patella
inf. 1/4 ant surface of femur
superior part of joint capsule of knee
femoral n.
Pectineus
pectineal line, sup. ramus of pubis
pectineal line of femur (inf to lesser trochanter, deep to ADD wad)
Dual innervation: Femoral/obturator n.
Biceps Femoris
Long HD: Ischial tuberosity
Short HD: lateral lip of linea aspera and proximal 2/3 of lat. supracondylar ridge
(deep to L.HD)
The 2 heads unite above knee and common tendon inserts on lateral fibular head.
semimembranosus
ischial tuberosity lateral
medial condyle of tibia- posteriomedial surface
Sciatic n- tibial portion
Biceps femoris nerve innervation
Long head: sciatic nerve- tibial portion
Short head: sciatic nerve- common peroneal portion (fibular)
semitendinosus
Ischial tuberosity
pes asnerine
Sciatic n. - tibial portion
Gracilis (only ADD that crosses the knee)
inferior ramus of pubis
Pes asnerine
Adductor magnus (deep: sandwiched between Adductors and hamstrings)
inferior ramus of pubis/ischium and medial isch tube
Ins: Adductor: linea aspera and medial supracondylar ridge
Hamstring portion: Adductor tubercle
Adductor magnus Nerve innervation
Adductor portion: obturator n.
Hamstring portion: Sciatic n.
Adductor longus
body of pubis (inf to tubercle)
middle third of medial lip of linea aspera
–///–
obturator n
Adductor brevis
Body of pubis, and inf ramus of pubis
Superior 1/2 of medial lip of linea aspera
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obturator n.
