hip/thigh muscles Flashcards
(20 cards)
Psoas Major (Flexors)
O: lumbar transverse processes, intervertebral discs and bodies from T12-L5
I: lesser trochanter of femur
N: anterior rami (L1,L2,L3)
F: hip flexion
Iliacus (Flexors)
O: iliac fossa
I: lesser trochanter of femur
N: femoral nerve (L2, L3)
F: hip flexion
Pectineus (ADDuctors)
O: Pectineal line of pelvis
I: lesser trochanter of femur
N: femoral nerve (L2,L3)
F: hip ADD and flexion
Adductor Longus (ADDuctors)
O: body of pubis
I: linea aspera of femur
N: Obturator nerve (L2-4)
F: hip ADD and int. rot.
Adductor Brevis (ADDuctors)
O: body of pubis and inferior pubic ramus
I: linea aspera of femur
N: Obturator nerve (L2,L3)
F: hip ADD and int. rot.
Adductor Magnus (ADDuctors)
Adductor Part: O: ischiopubic ramus I: Post. surface of proximal femur, linea aspera, medial supracondylar line N: Obturator nerve (L2-4) F: hip ADD and int rot
Hamstring Part:
O: ischial tuberosity
I: adductor tubercle & supracondylar line
N: Sciatic nerve (tibial division) (L2-4)
F: assists in hip extension & ADD
Gracilis (ADDuctors)
O: body of pubis, inferior pubic ramus, ramus of ischium
I: Pes Anserine of the tibia
N: Obturator nerve (L2,L3)
F: hip ADD, knee flexion
Sartorius (Flexors)
O: Ant. Sup. iliac spine
I: Pes Anserine of the tibia
N: Femoral nerve (L2, L3)
F: hip flexion & ext rot, knee flexion
Gluteus Maximus (ABDuctors)
O: Fascia of gluteus medius and erector spinae, dorsal surface of sacrum/ coccyx/ sacrotuberous ligament
I: IT band (Iliotibial tract) and gluteal tuberosity of femur
N: Inferior gluteal nerve (L5, S1, S2)
F: Extends, abducts, and ER hips; lateral stabilizer of hip and knee joint
Gluteus Medius (ABDuctors)
O: External surface of Ilium I: Greater Trochanter of femur N: Superior gluteal Nerve (L4, L5, S1) F: ABD hip, stabilizes pelvis over stance - Ant. fibers: IR of hip - Post. fibers: ER of hip
Gluteus Minimus (ABDuctors)
O: External surface of Ilium
I: Greater trochanter of femur
N: Superior gluteal nerve (L4, L5, S1)
F: ABD and IR of hip; stabilizes pelvis over stance
TFL (Tensor Fascia Latae) (ABDuctors)
O: Crest of Ilium
I: IT band (Iliotibial tract) of fascia latae
N: Superior Gluteal Nerve (L4, L5, S1)
F: hip flexion/ ABD/ IR; stabilizes knee in extension
Piriformis (short rotators)
O: Anterior surface of sacrum
I: greater trochanter of femur
N: branches from S1 & S2
F: hip ER with femur extended; hip ABD with flexed femur
Obturator Internus (short rotators)
O: Obturator Membrane
I: greater trochanter of femur
N: Nerve to obturator internus (L5, S1)
F: hip ER with extended femur; hip ABD with flexed femur
Pneumonic for remembering the order of ADDuctors from Superior to Inferior
Peanut (Pectinius) Butter (Adductor Brevis) Leaves (Adductor Longus) Me (Adductor Magnus) Greasy (Gracilis)
Pneumonic for remembering the order of short rotators from Superior to Inferior
PGOGOQ (Piriformis, Gemellus Superior, Obturator Internus, Gemellus Inferior, Obturator Externus, Quadratus Femoris)
Obturator Externus (short rotators)
O: Obturator membrane
I: Trochanteric Fossa of the femur
N: Obturator Nerve (L3, L4)
F: Hip ER with extended femur (hip ABD with flexed femur)
Superior Gemilli (short rotators)
O: External surface of ischial spine
I: greater trochanter of femur
N: Nerve to Obturator Internus (L5, S1)
F: hip ER with extended femur; hip ABD with flexed femur
Inferior Gemilli (short rotators)
O: ischial tuberosity
I: greater trochanter of femur
N: Nerve to quadratus femoris (L5, S1)
F: hip ER with extended femur; hip ABD with flexed femur
Quadratus Femoris (short rotators)
O: lateral aspect of the ischium
I: intertrochanteric crest of femur
N: Nerve to quadratus femoris (L5, S1)
F: hip ER
