Surface Anatomy Unit II: Hip & Thigh Muscles Flashcards
Gluteus Maximus
A: Extend – Lat/Ext. rotate – abduct (all hip)
O: Coccyx, edge of sacrum, iliac crest, sacrotuberous and sacroiliac ligaments
I: (upper fibers) iliotibial tract – (lower fibers) gluteal tuberosity
Gluteus Medius
A: Abduct – Med/Int rotate (both hip)
O: Gluteal surface of ilium
I: Lateral aspect of greater trochanter
Gluteus Minimus
A: Abduct – Med/Int rotate (both hip)
O: Gluteal surface of ilium
I: Anterior aspect of greater trochanter
Adductor Longus
A: Adduct – Med/Int rotate (both hip)
O: pubic tubercle
I: medial lip of linea aspera
Pectineus
A: Adduct – Med/Int rotate (both hip)
O: superior ramus of pubis
I: pectineal line of femur
Gracilis
A: Adduct – Med/Int rotate (both hip)
O: inferior ramus of pubis
I: proximal, medial shaft of tibia at pes anserinus
Tensor Fasciae Latae
A: Flex – Med/Int rotate – abduct (all hip)
O: iliac crest, posterior to the ASIS
I: iliotibial tract
Sartorius
A: (“cross legged muscle” Flex – Lat/Ext rotate – (both hip)
O: ASIS
I: proximal, medial shaft of the tibia at pes anserinus
Rectus Femoris
A: Extend knee – flex hip
O: Anterior Inferior Iliac Spine
I: Tibial Tuberosity
Vastus Medialis
A: Extend knee
O: Medial Lip of Linea Aspera
I: Tibial Tuberosity
Vastus Lateralis
A: Extend knee
O: Lateral lip of linea aspera – gluteal tuberosity – greater trochanter
I: Tibial Tuberosity
Vastus Intermedius
A: Extend knee
O: Anterior and lateral shaft of femur
I: Tibial Tuberosity
Biceps Femoris
A: Flex knee
O: (Long head) Ischial Tuberosity – (short head) lateral lip of linea aspera
I: Head of fibula
Semitendinosus
A: Flex knee
O: Ischial Tuberosity
I: Medial shaft of tibia at Pes anserinus
Semimembranosus
A: Flex knee
O: Ischial Tuberosity
I: Posterior aspect of medial condyle of tibia
