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TFL origin
anterior iliac crest
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-
TFL action
flex thigh, ABD thigh, medially rotate thigh, stab knee
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TFL nerve
- superior gluteal nerve
- (L4-S1)
-
TFL BS
superior gluteal artery
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Gluteus Max origin
- coccyx
- posterior iliac crest
- lateral and posterior border of sacrum
- deep- sacrotuberous and sacrospinous ligaments
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Gluteus Max insertion
- IT band
- gluteal tuberosity
- intermuscular septum of thigh between vastus lateralis and biceps femoris
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Gluteus Max action
- extends the thigh
- hyperextends the trunk
- maintains erect posture
- lateral rotation of thigh
- ABD thigh
- Stab knee
-
Gluteus Max nerve
- Inferior gluteal nerve
- L5-S2
-
Gluteus Max BS
inferior gluteal artery and superior gluteal artery
-
Gluteus Med origin
between the anterior and superior gluteal lines
-
Gluteus Med insertion
lateral facet of the greater trochanter
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Gluteus Med action
ABD thigh and medially rotates thigh
-
Gluteus Med nerve
- superior gluteal nerve
- L4-S1
-
Gluteus Med BS
superior gluteal artery
-
Gluteus Min origin
between the anterior and inferior gluteal lines
-
Gluteus Min insertion
greater trochanter
-
Gluteus Min action
ABD thigh and medially rotate thigh
-
Gluteus Min nerve
- Superior gluteal nerve
- L4-S1
-
Gluteus Min BS
Superior gluteal artery
-
Piriformis origin
1-4 of the sacral foramina
-
Piriformis insertion
medial side of the greater trochanter
-
Piriformis action
laterally rotates extended femur, ABD femur
-
-
Piriformis BS
inferior gluteal artery
-
Obturator internus origin
circumference of obturator foramen
-
Obturator internus insertion
medial greater trochanter
-
Obturator internus action
laterally rotates extended femur; ABD thigh
-
Obturator internus nerve
- nerve to obturator internus
- L5-S1
-
Obturator internus BS
inferior gluteal artery
-
Superior Gem origin
ischial spine
-
Superior Gem insertion
- medial part of greater trochanter
- tendon of obturator internus to greater trochanter
-
Superior Gem action
laterally rotates extended femur; ABD femur
-
Superior Gem nerve
- nerve to obturator internus
- L5- S1
-
Superior Gem BS
inferior gluteal artery
-
Inferior Gem origin
ischial tuberosity
-
Inferior Gem insertion
- medial part of the greater trochanter
- tendon of obturator internus to greater trochanter
-
Inferior Gem action
laterally rotates extended femur; ABD femur
-
Inferior Gem nerve
- nerve to quadratus femoris
- L5-S1
-
Inferior Gem BS
inferior gluteal artery
-
Quad femoris origin
ischial tuberosity
-
Quad femoris insertion
intertrochanteric crest
-
Quad femoris action
only laterally rotates thigh
-
Quad femoris nerve
- nerve to quadratus femoris
- L5-S1
-
Quad femoris BS
inferior gluteal artery
-
Psoas major origin
posterior abdominal wall from the lateral processes of T12-L5
-
Psoas major insertion
lesser trochanter
-
Psoas major action
flexes the thigh
-
Psoas major nerve
anterior rami of L1, L2, L3
-
Psoas major BS
lumbar branch of the iliolumbar artery
-
Iliacus origin
iliac fossa of the ilium
-
Iliacus insertion
lesser trochanter
-
Iliacus action
flexes the thigh
-
Iliacus nerve
Femoral nerve L2, L3
-
Iliacus BS
iliac branch of the iliolumbar artery
-
-
Sartorius insertion
medial part of the tibia just below the tibial tuberosity
-
Sartorius action
- dance muscle
- flexes thigh and leg; ABD thigh; laterally rotates leg
-
-
Sartorius BS
femoral artery
-
Vastus medialis origin
- medial part of the intertrochanteric crest
- pectineal line
- medial supracondylar line
- medial margin of the linea aspera
-
Vastus medialis insertion
Quad tendon and medial patella
-
Vastus medialis action
extend the leg and stabilizes the patella
-
-
Vastus medialis BS
femoral artery
-
Vastus lateralis origin
- lateral part of the intertrochanteric crest
- lateral part of the gluteal tuberosity
- lateral lip of the linea aspera
- margin of greater trochanter
-
Vastus lateralis insertion
quad tendon and lateral patella
-
Vastus lateralis action
extends the leg and stabilizes the patella
-
-
Vastus lateralis BS
lateral circumflex artery
-
Vastus intermedius origin
upper 2/3 of the anterior and lateral surfaces of the femur
-
Vastus intermedius insertion
quad tendon and lateral patella
-
Vastus intermedius action
extends the leg and stab patella
-
-
Vastus intermedius BS
femoral artery
-
Rectus femoris straight head origin
AIIS
-
Rectus femoris reflected head origin
just superior to the acetabulum
-
Rectus femoris insertion
- quad tendon
- patella and tibial tuberosity via the patellar ligament
-
Rectus femoris action
flexes the thigh; extends the leg; stab patella
-
-
Rectus femoris BS
lateral circumflex artery
-
Biceps femoris long head origin
- inferior ischial tuberosity
- shares tendon with semi-tendinosus
-
Biceps femoris long head insertion
head of fibula
-
Biceps femoris long head action
flex leg, laterally rotate leg; and extend the thigh
-
Biceps femoris long head nerve
-
Biceps femoris long head BS
inferior gluteal artery, perforating arteries, and popliteal artery
-
Biceps femoris short head origin
lateral lip of linea aspera
-
Biceps femoris short head insertion
head of fibula
-
Biceps femoris short head action
flex leg, laterally rotate leg
-
Biceps femoris short head nerve
- common fibular nerve
- L5, S1, S2
-
Biceps femoris short head BS
inferior gluteal artery, perforating arteries, popliteal artery
-
Semitendinosus origin
inferior ischial tuberosity via common tendon of biceps femoris
-
Semitendinosus insertion
- goose foot
- medial portion of proximal tibia
-
Semitendinosus action
extend the thigh, flex the leg, medially rotate the thigh and leg
-
-
Semitendinosus BS
inferior gluteal artery and perforating arteries
-
Semimembranosus origin
superolateral impression on the ischial tuberosity
-
Semimembranosus insertion
medial and posterior surface of medial tibial condyle
-
Semimembranosus action
extend thigh, flex leg, and medially rotate thigh and leg
-
-
Semimembranosus BS
inferior gluteal artery and perforating arteries
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