MUSCLES OF THE GLUTEAL REGION
Gluteus maximus
From the posterior gluteal line of the hip bone, the dorsal surface of the lower part of the sacrum and the side of the coccyx, the sacrotuberous ligament, and the fascia over gluteus medius
To the iliotibial tract, with the deep fibres of the lower part attaching to the gluteal tuberosity of the femur
Inferior gluteal nerve , L5, S1, 2
Extension and lateral rotation of the hip joint
Gluteus medius
From the outer surface of the ilium between the posterior and anterior oblique lines
To the lateral surface of the greater trochanter of the femur
Superior gluteal nerve , L4, 5, S1
Abduction and medial rotation of the hip joint, and prevention of adduction
Gluteus minimus
From the outer surface of the ilium between the anterior and inferior gluteal lines
To the anterior part of the lateral surface of the greater trochanter of the femur
Superior gluteal nerve , L4, 5, S1
Abduction and medial rotation of the hip joint, and prevention of adduction
Piriformis
From the middle three pieces of the sacrum
To the upper border of the greater trochanter of the femur
Branches from L5, S1, 2
Abduction, lateral rotation and stabilization of the hip joint
Quadratus femoris
From the upper part of the outer border of the ischial tuberosity
To the quadrate tubercle of the intertrochanteric crest of the femur
Nerve to quadratus femoris, L4, 5, S1
Lateral rotation and stabilization of the hip joint
Obturator internus
From the inner surface of the obturator membrane and the adjacent anterolateral pelvic wall
To the greater trochanter of the femur, above and in front of the trochanteric fossa
Nerve to obturator internus, L5, S1, 2
Lateral rotation and stabilization of the hip joint
Gemellus superior and inferior
Superior from the dorsal surface of the ischial spine, inferior from the upper part of the ischial tuberosity
To the superior and inferior borders respectively of obturator internus
Nerves to obturator internus (superior) and quadratus femoris (inferior)
Assists obturator internus
Obturator externus
From the outer surface of the obturator membrane and the ischiopubic ramus
To the trochanteric fossa of the femur
Obturator nerve, L3, 4
Lateral rotator of the thigh
MUSCLES OF THE FRONT OF THE THIGH
Iliacus
From the upper two-thirds of the iliac fossa in the lower abdomen
To the psoas tendon and the femur below and in front of the lesser trochanter
Femoral nerve, L2, 3
Flexor of the hip, assisting psoas major
Psoas major
From the sides of the lumbar vertebrae and intervertebral discs
To the lesser trochanter of the femur
Branches from L1, 2, 3
Flexor of the hip
Tensor fasciae latae
From the anterior 5 cm of the outer lip of the iliac crest
To the iliotibial tract
Superior gluteal nerve, L4, 5, S1
Extensor of the knee and lateral rotator of the leg
Sartorius
From the anterior superior iliac spine
To the upper part of the medial surface of the shaft of the tibia in front of gracilis and semitendinosus
Femoral nerve, L2, 3
Flexor, adductor and lateral rotator of the hip
Rectus femoris
From the anterior inferior iliac spine (straight head) and the ilium above the rim of the acetabulum (reflected head)
To the base of the patella
Femoral nerve, L3, 4
Flexor of the hip and extensor of the knee
Vastus lateralis
From the upper part of the intertrochanteric line of the femur, anterior and inferior borders of the greater trochanter, lateral lip of the gluteal tuberosity and the upper part of the linea aspera
To the lateral border of the patella and the quadriceps tendon
Femoral nerve, L2, 3, 4
Extensor of the knee
Vastus medialis
From the lower part of the intertrochanteric line of the femur, the spiral line, the linea aspera, the upper part of the medial supracondylar line and the tendon of adductor magnus
To the medial border of the patella and the quadriceps tendon
Femoral nerve, L2, 3, 4
Extensor of the knee
Vastus intermedius
From the anterior and lateral surfaces of the upper two-thirds of the shaft of the femur
To the deep part of the quadriceps tendon
Femoral nerve, L2, 3, 4
Extensor of the knee
Articularis genus
From the anterior surface of the femur below vastus intermedius
To the apex of the suprapatellar bursa
Femoral nerve, L3, 4
Retraction of the bursa as the knee extends
MUSCLES OF THE MEDIAL SIDE OF THE THIGH
Pectineus
From the pectineal line of the pubis and bone in front of the line
To the femur on a line from the lesser trochanter to the linea aspera
Femoral nerve, L2, 3
Flexor, adductor and lateral rotator of the hip
Gracilis
From the body of the pubis and ischiopubic ramus
To the upper part of the medial surface of the shaft of the tibia, between sartorius and semitendinosus
Obturator nerve, L2, 3
Flexor, adductor and medial rotator of the thigh
Adductor brevis
From the body and inferior ramus of the pubis
To the shaft of the femur on a line from the lesser trochanter to the linea aspera, and to the upper part of the linea
Obturator nerve, L2, 3, 4
Adductor of the thigh
Adductor longus
From the front of the pubis
To the middle part of the linea aspera
Obturator nerve, L2, 3, 4
Adductor of the thigh
Adductor magnus
From the lower lateral part of the ischial tuberosity and the ischiopubic ramus
To the shaft of the femur from the gluteal tuberosity along the linea aspera to the medial supracondylar line, and to the adductor tubercle
Obturator nerve, L2, 3, 4 and sciatic nerve, L4, 5, S1
Adductor and lateral rotator of the thigh