Hip And Pelvis Flashcards
Iliac Crest
“Side hip bone”, one at each side of body
ASIS
Anterior Superior Iliac Spine. Most prominent anterior “hip bone”. Origin of Sartorius and Inguinal Ligament.
PSIS
Posterior Superior Iliac Spine. Prominent around the mid-lower back.
AIIS
Anterior Inferior Iliac Spine. Origin of the Rectus Femoris
Greater Trochanter of the Femur
Bony prominence at the lateral side of the upper thigh. Origin of the Vastus Lateralis.
Ischial Tuberosity
“Butt bone”. Origin of Semitendinosus and Semimembranosus.
Sartorius
Originates at the ASIS and crosses the thigh medially to insert at medial aspect of tibia (pes anserine).
Actions: flexes and medially rotates leg at knee, flexes, abducts, and laterally rotated thigh
Adductor Longus
Originates at the anterior surface of the pubis bone and inserts at the linea aspera (middle of femur).
Actions: thigh adduction
Adductor Magnus
Originates at inferior pubic ramus and ischial tuberosity, inserts at multiple spots around the thigh and makes a sort of fan shape. Inserts at gluteal tuberosity, linea aspera, and adductor tubercle.
Actions: adducts, flexes, and extends hip
Pectineus
Originates at superior pubic ramus and inserts at pectineal line of femur.
Actions: thigh adduction and flexion
Gracilis
Originates at inferior pubic ramus and inserts at medial aspect of tibia (pes anserine).
Actions: knee flexion and rotation, thigh adduction
Gluteus Maximus
Originates along the posterior aspects of sacrum, coccyx, and ilium. Inserts at tubercle of IT tract on femur.
Actions: thigh extension, lateral rotation, abduction
Gluteus Medius
Originates along the ilium and inserts at greater trochanter.
Actions: thigh abduction and internal rotation
Piriformis
Originates at sacrum, inserts at superior border of greater trochanter.
Actions: thigh external rotation and abduction
Rectus Femoris
One of the primary quadriceps. Originates at the AIIS and inserts at tibial tuberosity via patellar ligament.
Actions: knee extension, hip flexion
