PosteriorThigh Flashcards
biceps femoris origin
ischial tuberosity, distal femur
short head: lateral lip of linea aspera
biceps femoris insertion
lateral head of fibula
biceps femoris innervation
tibial division of sciatic
short head: common fibular division of the sciatic nerve
biceps femoris action
thigh extension, knee flexion, leg lateral rotation
semitendinosis insertion
pes anserine of medial tibia
semitendinosis innervation
sciatic
semitendinosis action
thigh extension, knee flexion, medial rotation
semimembranosis origin
ischial tuberosity
semimembranosis insertion
medial tibia
semimembranosis innervation
sciatic
semimembranosis action
thigh extension, knee flexion, medial rotation
semimembranosis action
thigh extension, knee flexion, medial rotation
gluteus maximus origin
ilium posterior to posterior gluteal line, dorsal surface of sacrum and coccyx, and sacrotuberous ligament
gluteus maximus insertion
iliotibial tract, some fibers insert on gluteal tuberosity
gluteus maximus innervation
inferior gluteal nerve
trochanteric bursa
separates gluteus maximus from greater trochanter
gluteofemoral bursa
separates the iliotibial tract from superior part of proximal attachment of vastus lateralis
ischial bursa
separates inferior part of gluteus maximus from ischial tuberosity; often absent
gluteus medius origin
External surface of ilium between anterior and posterior gluteal lines
gluteus medius insertion
lateral surface of greater trochanter of femur
gluteus medius innervation
superior gluteal
gluteus medius action
Abduct and medially rotate the thigh, keeps pelvis level when opposite leg is raised
gluteus minimus origin
external surface of ilium between anterior and inferior gluteal lines
gluteus minimus insertion
anterior surface of greater trochanter of femur
gluteus minimus innervation
superior gluteal
gluteus minimus action
Abduct and medially rotate the thigh, keeps pelvis level when opposite leg is raised
piriformis action
laterally rotates extend thigh; abducts flexed thigh; steadies femoral head in acetabulum
piriformis origin
anterior surface of sacrum and sacrotuberus ligament
piriformis insertion
superior border of greater trochanter of femur