Lower Limb Anatomy

Front 1

sartorius origin

Back 1

ant sup iliac spine

Front 2

insertion sartorius

Back 2

upper medial surface tibia (sgs)

Front 3

action sartorius

Back 3

cross leg position

Front 4

nerve supply sartorius

Back 4

femoral nerve

Front 5

origin rectus femorus

Back 5

-reflected head: groove above acetabulum
-straight head: upper 1/2 ant inf iliac spine

Front 6

origin vastus lateralis

Back 6

- inter trochanteric line
- greater trochanter
- lat lip of linea aspra
- lat intermuscular line

Front 7

origin vastus intermedius

Back 7

upper 2/3 femur (shaft)

Front 8

origin vastus medialis

Back 8

-inertrochanteric line
-med lip of linea aspra
-tendon of adductor magnus

Front 9

insertion of quadriceps

Back 9

through patellar ligament into the tibia

Front 10

action

Back 10

-flexion hip
-extension knee

Front 11

adductor longus origin

Back 11

body of pubis

Front 12

adductor longus insertion

Back 12

middle of 1/3 linea aspra

Front 13

adductor longus action

Back 13

-adduction thigh
-medial rotation and flexion knee
-

Front 14

adductor brevis origin

Back 14

body of inf ramus of pubic bone

Front 15

adductor brevis insertion

Back 15

upper part of linea aspra

Front 16

adductor brevis action

Back 16

-adduction
- flexion and medial rotation

Front 17

adductor magnus origin

Back 17

-lat part of lower area of ischial tuberosity
-ischiopubic ramus

Front 18

adductor magnus insertion

Back 18

-adductor tubercle
-medial supracondylar line
-linea aspra (till gluteal tuberosity)

Front 19

adductor magnus action

Back 19

-adduction & lat. rotation (thigh)
-extension (hip joint)

Front 20

garciles origin

Back 20

-body of pubis
-pubic arch

Front 21

garciles insertion

Back 21

med surface tibia (sgs)

Front 22

garciles action

Back 22

-on thigh: adduction
-on knee: flexion and lat rotation
-steadies pelvis

Front 23

pectineus origin

Back 23

pectineal line pubis

Front 24

insertion pectineus

Back 24

vertical line below lesser trochanter

Front 25

action pectineus

Back 25

flexion and adduction of thigh

Front 26

medial compartment nerve supply

Back 26

obturator nerve

Front 27

biceps femorus origin

Back 27

-long head: upper medial part of ischeal tuberosity
-short head: whole length of linea aspra and supracondylar ridge of femur

Front 28

biceps femorus insertion

Back 28

head of fibula

Front 29

biceps femorus action

Back 29

-ON KNEE
-flexion
-lat rotation (in semiflexed position)

-ON HIP:
-extension

Front 30

Semimemb. origin

Back 30

upper lat ischeal tuberosity

Front 31

semimemb insertion

Back 31

medial condyl tibia

Front 32

semimemb action

Back 32

-flexion and med rotation(knee)
-extension (hip)

Front 33

semitendinosus origin

Back 33

lower medial ischeal tuberosity

Front 34

semitendinosus insertion

Back 34

upper medial surface of tibia

Front 35

gluteus maximus origin

Back 35

-gluteal surface ilium
-lat mass of sacrum
-lumbar fascia
-sacrotuberous ligament

Front 36

gluteus maximus insertion

Back 36

1/4= ilio-tibial tract
3/4= gluteal tuberosity

Front 37

gluteus maximus action

Back 37

-lat rotation, extension hip joint
-support extension of the leg
-antigravity muscle