CH 13: Muscles of Thigh and Butt

Question 1

Need to know ID, Origin, Insertion, and Action: Iliopsoas

Answer 1

Origin: iliacus - iliac fossa, iliac crest and lateral sacrum

psoas major - lumbar vertebrae

Insertion: lesser trochanter

Action: trunk flexion and thigh flexion

Question 2

Need to know ID, Origin, Insertion, and Action: Sartorius

Answer 2

Origin: ASIS

Insertion: proximal tibia

Action: thigh flexion, abduction, and lateral rotation

Question 3

Need to know ID, Origin, Insertion, and Action: Tensor Fascia Latae

Answer 3

Origin: ASIS

Insertion: iliotibial tract

Action: stabilize pelvis

Question 4

Need to know ID, Origin, Insertion, and Action: Gluteus Maximus

Answer 4

Origin: dorsal ilium, sacrum and coccyx

Insertion: gluteal tuberosity

Action: thigh extension

Question 5

Need to know ID, Origin, Insertion, and Action: Gluteus Medius

Answer 5

Origin: lateral iliac surface

Insertion: greater trochanter

Action: thigh abduction and medial rotation