Untitled Deck Flashcards
1
Q
What is the origin of the psoas major muscle?
A
The origin is the transverse processes of L1-L4.
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2
Q
What is the insertion of the psoas major muscle?
A
Its tendon fuses with the iliacus to form the iliopsoas muscle and attaches to the lesser trochanter of the femur.
3
Q
What is the nerve supply of the psoas major muscle?
A
The nerve supply includes direct branches from the L2-L4 ventral rami and the femoral nerve.
4
Q
What is the action of the psoas major muscle?
A
The actions are lateral flexion of the lumbar spine and flexion of the hip joint.
