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Gluteus Maximus
Origin:
posterior gluteal line of the ilium, posterior lower sacrum, coccyx
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Gluteus Maximus
Insertion:
into iliotibial tract and gluteal tuberosity of the femur
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Gluteus Maximus
Action:
extension and lateral rotation of femur at hip; upper fibers abduct femur; lower fibers adduct femur at hip
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Gluteus Maximus
Innervation:
inferior gluteal
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Gluteus Medius
Origin:
entire external surface of ilium between anterior and inferior gluteal lines at iliac crest
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Gluteus Medius
Insertion:
greater trochanter of femur
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Gluteus Medius
Anterior fibers Action:
flextion, abduction and internal rotation of femur of hip joint
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Gluteus Medius
Middle fibers Action:
abduction of hip joint
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Gluteus Medius
Posterior fibers Action:
extension, abduction and external rotation of hip joint
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Gluteus Medius
Innervation:
superior gluteal
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Gluteus minimus
Origin:
external surface of ilium between anterior and inferior gluteal lines at iliac crest
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Gluteus minimus
Insertion:
greater trochanter of femur
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Gluteus minimus
Action:
flexion, abduction and internal rotation of femur of hip joint
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Gluteus minimus
Innervation:
superior gluteal
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Tensor Fascia Latae
Origin:
ASIS
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Tensor Fascia Latae
Insertion:
iliotibial tract which inserts into patella, tibial condyle and head of fibula
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Tensor Fascia Latae
Action:
flexion, abduction and internal rotation of femur; adds lateral stability to knee joint
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Tensor Fascia Latae
Innervation:
superior gluteal
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Sartorius
Insertion:
proximal medial tibia near anterior border
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Sartorius
Action:
flexes, abducts and externally rotates femur at hip; flexes and internally rotates knee joint
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Sartorius
Innervation:
femoral
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Hip Adductors:
- pectineus
- adductor magnus
- gracilis
- adductor brevis
- adductor longus
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Hip Adductors
Origin:
all along pubic ramus and symphysis pubis
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Hip Adductors
Insertion:
pectineal line, linea aspera, adductor tubercle, and medial condyle
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Hip Adductors
Action:
adductions of femur at hip; internal rotator; in flexion, extend to neutral; in extension, flex to neutral
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Hip Adductors
Innervation:
obturator
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Pectineus
Origin:
all along pubic ramus and symphysis pubis
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Pectineus
Insertion:
pectineal line, linea aspera, adductor tubercle, and medial condyle
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Pectineus
Action:
adduction of femur at hip; internal rotators; in flexion, extend to neutral; in extension, flex to neutral
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Pectineus
Innervation:
femoral and obturator
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Adductor Magnus
Origin:
all along pubic ramus and symphysis pubis
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Adductor Magnus
Insertion:
pectineal line, linea aspera, adductor tubercle, and medial condyle
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Adductor Magnus
Action:
adduction of femur at hip; internal rotators; in flexion, extend to neutral; in extension, flex to neutral
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Adductor Magnus
Innervation:
obturator and sciatic
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Gracilis
Origin:
all along pubic ramus and symphysis pubis
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Gracilis
Insertion:
medial surface of tibia and proximal to semitendinous and lateral to sartorius
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Gracilis
Action:
- adduction of femur at hip joint; internal rotators; in flexion, extend to neutral; in extension, flex to neutral
- flex and medially rotate knee
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Gracilis
Innervation:
obturator
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Adductor brevis
Origin:
all along pubic ramus and symphysis pubis
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Adductor brevis
Insertion:
pectineal line, linea aspera, adductor tubercle, and medial condyle
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Adductor brevis
Action:
adduction of femur at hip joint; internal rotators; in flexion, extend to neutral; in extension, flex to neutral
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Adductor brevis
Innervation:
obturator
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Adductor longus
Origin:
all along pubic ramus and symphysis pubis
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Adductor longus
Insertion:
pectineal line, linea aspera, adductor tubercle, and medial condyle
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Adductor longus
Action:
adduction of femur at hip; internal rotators; in flexion, extend to neutral; in extension, flex to neutral
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Adductor longus
Innervation:
obturator
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Small short hip lateral rotators:
- piriformis
- quadratus femoris
- obturator internus
- obturator externus
- gemellus superior
- gemellus inferior
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Small short hip lateral rotators
Origin:
ischium and sacrum, ischial tuberosity, rami of pubis
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Small short hip lateral rotators
Insertion:
femur, around greater trochanter, quadrate line and trochanteric fossa
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Small short hip lateral rotators
Action:
primarily external rotation of femur at hip
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Small short hip lateral rotators
Innervation:
sacral plexus (obturator externus=obturator)
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Piriformis
Origin:
ischium and sacrum, ischial tuberosity, rami of pubis
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Piriformis
Insertion:
femur, around greater trochanter, quadrate line, and trochanteric fossa
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Piriformis
Action:
external rotation of femur
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Piriformis
Innervation:
sacral plexus
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Quadratus femoris
Origin:
ischium and sacrum, ischial tuberosity, rami of pubis
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Quadratus femoris
Insertion:
femur, around greater trochanter, quadrate line, and trochanteris fossa
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Quadratus femoris
Action:
external rotation of femur at hip
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Quadratus femoris
Innervation:
sacral plexus
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Obturator internus
Origin:
ischium and sacrum, ischial tuberosity, rami of pubis
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Obturator internus
Insertion:
femur, around greater trochanter, quadrate line, and trochanteric fossa
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Obturator internus
Action:
external rotation of femur at hip
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Obturator internus
Innervation:
sacral plexus
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Obturator externus
Origin:
ischium and sacrum, ischial tuberosity, rami of pubis
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Obturator externus
Insertion:
femur, around greater trochanter, quadrate line, and trochanteric fossa
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Obturator externus
Action:
external rotation of femur at hip
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Obturator externus
Innervation:
obturator
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Gemellus Superior and Inferior
Origin;
ischium and sacrum, ischial tuberosity, rami of pubis
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Gemellus Superior and Inferior
Insertion:
femur, around greater trochanter, quadrate line, and trochanteric fossa
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Gemellus Superior and Inferior
Action:
external rotation of femur at hip
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Gemellus Superior and Inferior
Innervation:
sacral plexus
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Psoas minor
Origin:
sides of bodies of T12 and L1
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Psoas minor
Insertion:
ilium and iliac fossa
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Psoas minor
Action:
brings pelvis toward lumbar spine (lumbar flexion)
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Psoas minor
Innervation:
lumbar plexus
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Psoas major
Origin:
transverse processes of all lumbar vertebrae
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Psoas major
Insertion:
lesser trochanter of femur
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Psoas major
Action:
w/ iliacus, provide majority of hip flexion when leg is free; when leg is stabilized, flexes spine toward leg; unilaterally: lateral trunk flexor
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Psoas major
Innervation:
lumbar plexus
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Iliacus
Origin:
superior 2/3 of iliac fossa, internal lip of iliac crest
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Iliacus
Insertion:
lateral side of tendon of psoas major just distal to lesser trochanter
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Iliacus
Action:
w/ psoas major, provide majority of hip flexion when leg is free; when leg is stabilized, flexes spine toward leg; unilaterally: lateral trunk flexor
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Iliacus
Innervation:
femoral
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