 | Term | Definition |
| |
origin of iliopsoas |
psoas major: T12-L5 vertebra and intervertebral discs; iliacus: iliac fossa |
| |
insertion of iliopsoas |
lesser trochanter of femur |
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function of iliopsoas |
hip flexion |
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innervation of iliopsoas and sartorius |
femoral nerve (L2-3) |
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origin of tensor fascia latae (TFL) |
ASIS and anterior iliac crest |
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insertion of TFL |
IT band |
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function of TFL |
hip flexion, abduction, and internal rotation |
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innervation of TFL |
superior gluteal nerve (L4-5) |
| |
origin of sartorius |
ASIS |
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insertion of sartorius |
superior medial tibia |
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function of sartorius |
hip flexion, abduction, external rotation, and knee flexion |
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origin of pectinius |
superior ramus of pubis |
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insertion of pectinius |
pectineal line of femur |
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function of pectinius |
hip flexion and adduction |
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innervation of pectinius |
femoral nerve (L2-4) |
| |
origin of adductor longus |
body of pubis |
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insertion of adductor longus |
linea aspera of femur |
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function of adductor longus |
hip adduction |
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innervation of adductor longus, adductor brevis, and 1/2 of adductor magnus |
obturator nerve (L2-4) |
| |
origin of adductor brevis |
body and inferior ramus of pubis |
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insertion of adductor brevis |
pectineal line and proximal linea aspera of femur |
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function of adductor brevis |
hip adduction |
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origin of adductor magnus |
ischial tuberosity and inferior ramus of pubis |
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insertion of adductor magnus |
linea aspera and adductor tubercle of femur |
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function of adductor magnus |
hip adduction |
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innervation of 1/2 of adductor magnus |
sciatic nerve (L2-4) |
| |
origin of gracilis |
body and inferior ramus of pubis |
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insertion of gracilis |
superior medial tibia |
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function of gracilis |
hip adduction and knee flexion |
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innervation of gracilis |
obturator nerve (L2-3) |
| |
origin of gluteus maximus |
posterior sacrum and ilium |
| |
insertion of gluteus maximus |
IT band and gluteal tuberosity of femur |
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function of gluteus maximus |
hip extension and external rotation |
| |
innervation of gluteus maximus |
inferior gluteal nerve (L5, S1-2) |
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origin of gluteus medius |
lateral surface of ilium |
| |
insertion of gluteus medius |
lateral greater trochanter |
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function of gluteus medius |
hip abduction |
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innervation of gluteus medius |
superior gluteal nerve (L5, S1) |
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origin of gluteus minimus |
lateral surface of ilium |
| |
insertion of gluteus minimus |
anterior greater trochanter |
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function of gluteus minimus |
hip abduction and internal rotation |
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innervation of gluteus minimus |
superior gluteal nerve (L4-S1) |
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origin of piriformis |
anterior sacrum |
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insertion of piriformis |
greater trochanter |
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function of piriformis |
external rotation of an extended hip, adduction of a flexed hip, and joint stabilization |
| |
innervation of piriformis |
anterior rami of S1-2 |
| |
origin of obturator externus |
membrane of obturator foramen |
| |
insertion of obturator externus |
trochanteric fossa of femur |
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function of obturator externus |
external rotation of hip and joint stabilization |
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innervation of obturator externus |
obturator nerve (L3-4) |
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origin of obturator internus |
membrane of obturator foramen |
| |
insertion of obturator internus |
medial greater trochanter of femur |
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function of obturator internus |
external rotation of an extended hip, adduction of a flexed hip, and joint stabilization |
| |
innervation of obturator internus |
nerve to obturator internus (L5, S1) |
| |
origin of superior and inferior gemelli |
superior= ischial spine; inferior= ischial tuberosity |
| |
insertion of superior and inferior gemelli |
medial greater trochanter of femur |
| |
function of superior and inferior gemelli |
external rotation of an extended hip, adduction of a flexed hip, and joint stabilization |
| |
innervation of superior and inferior gemelli |
superior= nerve to obturator internus (L5, S1); inferior= nerve to quadratus femoris (L5, S1) |
| |
origin of quadratus femoris |
lateral ischial tuberosity |
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insertion of quadratus femoris |
intertrochanteric crest of femur |
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function of quadratus femoris |
external rotation of hip and joint stabilization |
| |
innervation of quadratus femoris |
nerve to quadratus femoris (L5, S1) |
