Hip & Pelvis Muscles Flashcards
Iliacus origin
Iliac fossa
Iliacus insertion
Lesser trochanter
Iliacus action
Flex the hip
Iliacus blood supply
Iliolumbar artery
Iliacus innervation
Femoral nerve
Psoas major origin
Bodies & transverse processes of all lumbar vertebrae
Psoas major action
Flex the hip
Psoas major blood supply
Iliolumbar artery
Psoas major innervation
Lumbar nerves 2-4
Psoas major insertion
Lesser trochanter
Sartorius origin
Anterior superior iliac spine (ASIS)
Sartorius insertion
Pes anserine (medial surface of proximal tibia)
Sartorius action
Flex the hip, flex the knee, laterally rotate hip, hip abduction
Sartorius blood supply
5-11 BV
Sartorius innervation
Femoral nerve
Gluteus Maximus (origin)
Lateral surface of ilium Behind posterior gluteal line
Gluteus Maximus insertion
IT band (iliotibial tract) & gluteal tuberosity of femur
Gluteus Maximus action
Extends hip, abducts hip, lateral rotates hip
Gluteus Maximus innervation
Inferior gluteal nerve
Gluteus Maximus blood supply
Inferior & superior gluteal arteries
Adductor magnus origin
Inferior ramus of pubis, ramus of ischium, Ischial tuberosity
Adductor magnus insertion
Adductor tubercle & linea aspera
Adductor magnus action
Hip adduction, hip extension
Adductor Magnus blood supply
Deep femoral artery
Adductor Magnus innervation
Obturator & sciatic nerves
Gluteus medius origin
Lateral surface of ilium Between posterior and anterior gluteal lines
Gluteus medius insertion
Greater trochanter
Gluteus medius action
Hip abduction!
Anterior fibers - medially rotate & flex
Posterior fibers - laterally rotate & extend
Gluteus medius blood supply
Superior gluteal artery
Gluteus medius innervation
Superior gluteal nerve
Gluteus minimus origin
Lateral surface of ilium between anterior and inferior gluteal lines
Gluteus minimus insertion
Greater trochanter
Gluteus minimus action
Abduct hip
Medial rotation and flexion of hip
Gluteus minimus blood supply
Superior gluteal artery
Gluteus minimus innervation
Superior gluteal nerve
Tensor fasciae latae origin
Iliac crest
Tensor fasciae latae insertion
IT band (head of fibula)
Tensor fasciae latae action
Medial rotation of hip, hip flexion, hip abduction
Tensor fasciae latae blood supply
Deep branch of superior gluteal artery
Tensor fasciae latae innervation
Superior gluteal nerve
Pectineus origin
Superior ramus of pubis
Pectineus insertion
Femur, distal to lesser trochanter
Pectineus action
Hip adduction, hip flexion
Pectineus blood supply
Anterior division of Obturator artery
Pectineus innervation
Femoral nerve
Adductor longus origin
Pubic tubercle
Adductor longus insertion
Medial lip of linea aspera
Adductor longus action
Adducts hip, hip flexion
Adductor longus blood supply
Anterior division of Obturator artery
Adductor longus innervation
Obturator nerve
Adductor brevis origin
Body and inferior ramus of pubis
Adductor brevis insertion
Pectineal line
Adductor brevis action
Adducts and flex hip
Adductor brevis blood supply
Anterior division of Obturator artery
Adductor brevis innervation
Obturator nerve
Quadratus femoris origin
Ischial tuberosity
Quadratus femoris insertion
Posterior femur between trochanters
Quadratus femoris action
Hip adduction, lateral rotation of hip
Quadratus femoris innervation
Nerve to Quadratus femoris
Quadratus femoris blood supply
Inferior gluteal artery
Piriformis origin
Sacrum anterior surface
Piriformis insertion
Greater trochanter
Piriformis action
Thigh abduction when knee flexed, lateral rotation of hip
Piriformis innervation
Sacral nerves 1-2
Piriformis blood supply
Inferior branch of lateral sacral artery
Obturator internus origin
Obturator membrane (bone around Obturator foramen)
Obturator internus insertion
Medial surface of greater trochanter
Obturator internus action
Laterally rotate hip, thigh abduction when knee flexed
Obturator internus blood supply
Obturator artery
Obturator internus innervation
Nerve to Obturator internus
Obturator externus origin
Obturator membrane (bone around Obturator foramen) - external side
Obturator externus insertion
Intertrochanteric fossa (between trochanters)
Obturator externus action
Lateral rotation of hip
Obturator externus innervation
Obturator nerve
Obturator externus blood supply
Obturator artery
Superior gemellus origin
Ischial spine
Superior gemellus insertion
Superior border of Obturator internus tendon
Superior gemellus action
Lateral rotation of hip, thigh abduction when hip flexed
Superior gemellus innervation
Nerve to Obturator internus
Superior gemellus blood supply
Internal pudendal artery
Inferior gemellus origin
Ischial tuberosity
Inferior gemellus insertion
Inferior border of Obturator internus tendon
Inferior gemellus action
Lateral rotation of hip, thigh abduction when hip flexed
Inferior gemellus innervation
Nerve to Quadratus femoris
Inferior gemellus blood supply
Medial circumflex femoral artery
Levator ani origin
Pubis, Ischial spine, fascia between the two
Levator ani insertion
Coccyx, midline around pelvic organs
Levator ani action
Support pelvic viscera, pulls anal canal upward
Levator ani blood supply
Inferior gluteal artery
Pudendal artery
Levator ani innervation
Sacral nerves 3-4
Ischio-coccygeus origin
Ischial spine
Ischio-coccygeus insertion
Lower sacrum, upper coccyx
Ischio-coccygeus action
Pulls coccyx anteriorly
Support pelvic viscera
Ischio -coccygeus blood supply
Internal pudendal artery
Inferior gluteal artery,
Inferior vesical artery
Ischio-coccygeus innervation
Sacral nerves 4-5