Subject |
Date Published |
Contributer |
Language |
Total Questions |
File Name |
Muscles |
14th February 2009 |
Nethwa Bas |
USA |
43 |
wbe75.zip |
Right click and select "Save File as" |
|
Nemo James - Singer Songwriter
Action of adductor brevis |
1. adducts thigh 2. flexes thigh (assist) |
Action of adductor longus |
1. adducts thigh |
Action of adductor magnus |
1. adducts thigh 2. flexes thigh (adductor part) 3. extends thigh (hamstrings part) |
Action of articularis genu |
1. pulls synovial capsule superiorly during knee extension to prevent interposition of synovial folds between patella and femur |
Action of biceps femoris |
1. flexes leg (short head) 2. rotates leg medially when knee is flexed 3. extends thigh (long head) |
Action of gluteus maximus |
1. primary thigh extensor (esp. from flexed position) 2. lateral rotation (assist) 3. steadies thigh 4. rising from sitting position (assist) |
Action of gluteus medius |
1. abducts thigh 2. medially rotates thigh 3. gait: keep pelvis level when ipsilateral limb is weight bearing and advance opposite side during its swing phase |
Action of gluteus minimus |
1. abducts thigh 2. medially rotates thigh 3. gait: keep pelvis level when ipsilateral limb is weight bearing and advance opposite side during its swing phase |
Action of gracilis |
1. adducts thigh 2. flexes leg 3. medially rotates leg (assist) |
Action of iliacus |
1. flexes thigh 2. flex vertebral column (from below) – bilateral against resistance as in sitting from a recumbent position 3. stabilizes joint to help maintain erect posture 4. lateral vertebral flexion (unilateral) |
Action of inferior gemellus |
1. laterally rotates extended thigh 2. abducts thigh when flexed 3. steadies femoral head in acetabulum |
Action of obturator externus |
1. laterally rotates thigh 2. steadies femoral head in acetabulum |
Action of obturator internus |
1. laterally rotates extended thigh 2. abducts thigh when flexed 3. steadies femoral head in acetabulum |
Action of pectineus |
1. adducts thigh 2. flexes thigh 3. medial rotation of thigh (assist) |
Action of piriformis |
1. laterally rotates extended thigh 2. abducts thigh when flexed 3. steadies femoral head in acetabulum |
Action of psoas major |
1. flexes thigh on pelvis 2. stabilizes thigh to help maintain an erect posture 3. bends trunk and pelvis forward against resistance (as in sitting from recumbent position) |