Mechanical Principles Test 3- Muscles Flashcards
Action of tensor fasciae latae muscle
abduction of hip, hip flexion, anterior pelvic rotation
Insertion of tensor fasciae latae
1/4 of the way down the thigh into the iliotibial tract, which in turn inserts onto Gerdy’s tubercle of the anterolateral tibial condyle
Origin of tensor fasciae latae
anterier iliac crest, surface of the ilium just below the crest
Action of Gluteus maximus muscle
Extension of hip, external rotation of hip, upper fibers assist in abduction, lower fibers assist in adduction, posterior pelvic rotation
Insertion of gluteus maximus
oblique-ridge on lateral surgace of the greater trochanter and iliotibial band of the fascia latae
Origin of gluteus maximus
posterior 1/4 of the crest of ilium, posterior surface of the sacrum and coccyx near the ilium, and fascia of the lumbar area
Action Semitendonosus muscle
flexion of knee, extension of hip, internal rotation of hip, internal rotation of flexed knee, posterior pelvic rotation
Insertion of semitendonosus
upper anterior medial surface of tibia
Origin of semitendonosus
ischial tuberosity
Action of semimembranosus
flexion of knee, extension of hip
internal rotation of hip
internal rotation of flexed knee
posterior pelvic rotation
Insertion of semimembranosus
posteromedial surface of the medial tibial condyle
Origin of semimembranosus
ischial tuberosity
Action of biceps femoris
flexion of knee extension of hip external rotation of hip external rotation of flexed knee posterior pelvic rotation
Insertion of biceps femoris
lateral condyle of tibia, head of fibula
Origin of biceps femoris
lower half of linea aspera
lateral condyloid ridge
ischial tuberosity
Action of adductor magnus muscle
adduction of hip
external rotation as hip adducts
extension of hip
Insertion of adductor magnus
whole length of linea aspera
inner condyloid ridge
adductor tubercle
origin of adductor magnus
edge of entire ramus of the pubis
ischium and iscial tuberosity
Action of rectus femoris
flexion of hip
extension of knee
anterior pelvic rotation
Insertion of rectus femoris
superior aspect of the patella
patellar tendon to the tibial tuberosity
Origin of rectus femoris
anterior inferior iliac spine
groove (posterior) above the acetabulum
Action of vastus lateralis
extension of knee
Insertion of vastus lateralis
lateral border of patella
patellar tendon to tibial tuberosity
Origin of vastus lateralis
intertrochanteric line
anterior and inferior borders of the greater trochanter
upper half of the linea aspera
entire lateral intermuscular septum
Action of vastus intermedius
extension of knee
Insertion of vastus intermedius
upper border of patella
patellar tendon to tibial tuberosity
Origin of vastus intermedius
upper 2/3s of anterior surface of femur
Action of vastus medialis
extension of knee
Insertion of vastus medialis
medial half of the uper border of the patella and patellar tendon to the tibial tuberosity
Origin of vastus medialis
whole length of the linea aspera
Medial condyloid ridge
Action of gastrocnemius
plantar flexion of ankle
flexion of knee
Insertion of gastrocnemius
posterior surface of calcaneus
Origin of gastrocnemius
posterior surfaces of two condyles of femur
Action of soleus
plantar flexion of ankle
Insertion of soleus
posterior surface of calcaneus
Origin of soleus
proximal 2/3s of posterior surfaces of tibia and fibula
