Hip/Hip&Knee Muscles Flashcards
Psoas major
O: Anerterior T12-L5 vertebrae
I: Lesser trochanter of femur
A: Flex hip
Iliacus
O: Lliac fossa
I: Lesser trochanter of femur
A: Flex hip
Gluteus maximus
O: Llium, sacrum & coccyx
I: Proximal posterior femur & iliotibial tract
A: Extend & laterally rotate hip
Gluteus medius
O: Lateral surface of ilium
I: Greater trochanter of femur
A: Abduct & medially rotate hip
Gluteus minimus
O: Lateral surface of ilium
I: Greater trochanter of femur
A: Abduct & medially rotate hip
Tensor fasciae latae
O: Iliac crest
I: Iliotibial tract
A: Flex, abduct & medially rotate hip (supports lateral knee)
Piriformis
O: Anterolateral sacrum
I: Greater trochanter of femur
A: Abduct & laterally rotate hip (hip stability)
Obturator internus
O: Obturator foramen
I: Greater trochanter of femur
A: Laterally rotate hip (hip stability)
Adductor longus
O: Inferior ramus of pubis
I: Middle of linea aspera of femur
A: Adduct & medially rotate hip
Adductor magnus
O: Inferior ramus of pubis & ischial tuberosity
I: Linea aspera of femur
A: Adduct & laterally rotate hip
Pectineus
O: Superior ramus of pubis
I: Proximal medial surface of femur
A: Flex, adduct & medially rotate hip
Gracilis
O: Inferior ramus of pubis
I: Proximal medial surface of tibia
A: Adduct, medially rotate hip & flex knee
Sartorius
O: Anterior superior iliac spine
I: Proximal medial surface of tibia
A: Flex, laterally rotate, abduct hip and flex knee
Rectus femoris
O: Anterior superior iliac spine
I: Tibial tuberosity
A: Flex hip & extend knee
Semitendinosus
O: Ischial tuberosity
I: Proximal medial surface of tibia
A: Extend, medially rotate hip & flex knee
Semimembranosus
O: Ischial tuberosity
I: Proximal medial surface of tibia
A: Extend, medially rotate hip & flex knee
Biceps femoris long head
O: Ischial tuberosity
I: Head of fibula & lateral condyle of tibia
A: Extend, laterally rotate hip & flex knee
Biceps femoris short head
O: Linea aspera of femur
I: Head of fibula & lateral condyle of tibia
A: Flex knee
Vastus lateralis
O: Greater trochanter & linea aspera of femur
I: Tibial tuberosity
A: Extend knee
Vastus medialis
O: Linea aspera of femur
I: Tibial tuberosity
A: Extend knee
Vastus intermedius
O: Anterior surface of femur
I: Tibial tuberosity
A: Extend knee
Popliteus
O: Lateral condyle of femur
I: Posterior proximal tibia
A: Flex & medially rotate knee
Gastrocnemius
O: Medial & lateral condyles of femur
I: Calcaneus
A: Flex knee & plantar flex foot
