Pelvis actions up to TFL/Quiz 1

Question 1

Psoas major action

Answer 1

Flexion at hip (knee to SH)
if thigh fixed flexes trunk

Question 2

Psoas minor

Answer 2

flexion of trunk

Question 3

quadratus lumborum

Answer 3

lateral flexion of vertebral column, Stabilizes 12th rib during inspiration, depresses 12th rib during forced expiration and elevates coxal bone

Question 4

iliacus

Answer 4

flexion at hip joint

Question 5

gluteus maximus

Answer 5

extends hip against resistance, assists in external rotation, helps stabilizes knee joint in extension via the iliotibial tract and extends trunk when hip is flexed

Question 6

gluteus medius

Answer 6

abduction of the hip anterior;
internal rotation
external rotation
may assist with flexion at the hip
posterior
may assist with extension at the hip

Question 7

gluteus minimums

Answer 7

internal rotation and assists abduction at hip joint

Question 8

tensor fasciae latae

Answer 8

assists flexion, abduction, medial rotation at hip joint, assists in stabilizing in knee extension