left lower quadrant
The Psoas uscle
The psoas nerve is the nerve that innervates the psoas major muscle. It is formed by fibers of spinal nerves L2-L4.
psoas major muscle
The psoas muscle starts the the letters "ps."
Iliopsoas or Psoas Major
The tenderloin is made up of the psoas major and psoas minor muscles, which start on the cow's lower spine, run through the pelvis and connect to the front of the femur.
psoas
The strongest Flexor of the hip (thigh) is illiopsoas muscle which is the merger of the illiacus and the psoas major muscle. The illiacus is on the medial side of the pelvic bone attaching to the femur and the psoas major muscle attaches from the lumbar vertebrae to the femur.
Left Hypochondriac quadrant
The Iliopsoas
The value of x will be negative in the bottom left quadrant (quadrant 3) and the top left quadrant (quadrant 2).
The psoas is one of the flexors of the hip.