Download Muscle Chart - eCurriculum

MUSCLES OF GLUTEAL REGION
MUSCLE
NERVE
ORIGIN(S)
INSERTION(S)
ACTION(S)
1. Gluteus maximus
Inferior gluteal
Posterolateral ilium,
Iliotibial tract & gluteal Powerful extension &
dorsal sacrum, &
tuberosity of the femur lateral rotation of the
sacrotuberous ligament
hip
2. Gluteus medius
Superior gluteal
Lateral ilium
Greater trochanter of
the femur
Abduction of the hip or
lateral support of the
pelvis (+ other actions)
3. Gluteus minimus
Superior gluteal
Lateral ilium
Greater trochanter of
the femur
Abduction of the hip or
lateral support of the
pelvis (+ other actions)
4. Tensor fascia lata
Superior gluteal
Anterior part of iliac
crest
Iliotibial tract
Weak flexion & medial
rotation of hip; lateral
stabilization of knee
5. Piriformis
Branches from S1 & S2 Pelvic surface of
ventral rami
sacrum internal to
greater sciatic foramen
Medial surface of the
greater trochanter of
the femur
Lateral rotation of hip
6. Obturator internus
Nerve to obturator
internus & superior
gemellus
Internal aspect of
obturator foramen &
membrane
Medial surface of the
greater trochanter of
the femur
Lateral rotation of hip
Not important to learn
Not important to learn
Lateral rotation of hip
Not important to learn
Not important to learn
Lateral rotation of hip
9. Quadratus femoris
Nerve to inferior
gemellus & quadratus
femoris
Not important to learn
Not important to learn
Lateral rotation of hip
10. Obturator externus
Obturator
External aspect of
obturator foramen &
membrane
Trochanteric fossa of
the femur
Lateral rotation of hip
7. Superior gemellus
8. Inferior gemellus
THIGH - POSTERIOR COMPARTMENT MUSCLES
MUSCLE
1. Biceps femoris
a. Long head
NERVE
ORIGIN(S)
INSERTION(S)
ACTION(S)
Tibial portion of sciatic
Ischial tuberosity
Head of fibula
Extension of hip;
flexion of knee; lateral
rotation of the leg*
Common peroneal
portion of sciatic
Linea aspera of femur
Head of fibula
Flexion of knee; lateral
rotation of the leg*
2. Semitendinosus
Tibial portion of sciatic
Ischial tuberosity
Anteromedial aspect of
tibia below knee (joins
the pes anserinus)
Extension of hip;
flexion of knee; medial
rotation of the leg*
3. Semimembranosus
Tibial portion of sciatic
Ischial tuberosity
Posteromedial aspect of Extension of hip;
medial tibial condyle
flexion of knee; medial
rotation of the leg*
b. Short head
*When the knee is flexed