Pelvis and Thigh Anatomy

Flashcards for key terms and concepts related to the anatomy of the pelvis and thigh.

Rectus Femoris

Origin: Anterior Inferior Iliac Spine; Insertion: Tibial Tuberosity; Function: Flexes the hip and extends the knee.

Vastus Medialis

Origin: Medial Lip of Linea Aspera; Insertion: Tibial Tuberosity; Function: Extends the knee.

Biceps Femoris

Origin: Ischial Tuberosity (long head), Lateral Lip of Linea Aspera (short head); Insertion: Head of Fibula; Function: Flexes the knee and laterally rotates the thigh.

Semitendinosus

Origin: Ischial Tuberosity; Insertion: Proximal, Medial Shaft of the Tibia; Function: Flexes the knee and extends the hip.

Semimembranosus

Origin: Ischial Tuberosity; Insertion: Posterior Aspect of Medial Condyle of Tibia; Function: Flexes the knee and extends the hip.

Gluteus Maximus

Origin: Coccyx, Edge of Sacrum, Posterior Iliac Crest; Insertion: Iliotibial Tract and Gluteal Tuberosity; Function: Extends and laterally rotates the hip.

Gluteus Medius

Origin: Gluteal surface of ilium; Insertion: Lateral aspect of greater trochanter; Function: Abducts and medially rotates the hip.

Gluteus Minimus

Origin: Gluteal surface of ilium; Insertion: Anterior aspect of the greater trochanter; Function: Abducts and medially rotates the hip.

Adductor Group

Includes Adductor Magnus, Adductor Longus, Adductor Brevis, Gracilis, and Pectineus; Function: Adduct and medially rotate the hip.

Piriformis

Origin: Anterior surface of the sacrum; Insertion: Greater Trochanter; Function: Laterally rotates the hip.

Iliacus

Origin: Iliac Fossa; Insertion: Lesser trochanter of femur; Function: Flexes the hip.

Psoas Major

Origin: Bodies and transverse processes of lumbar vertebrae; Insertion: Lesser trochanter; Function: Flexes the hip and lumbar spine.

Tensor Fasciae Latae

Origin: Iliac Crest; Insertion: Iliotibial Tract; Function: Flexes, abducts, and medially rotates the hip.

Rectus Femoris

Origin: __; Insertion: Tibial Tuberosity; Function: Flexes the hip and extends the knee.

Vastus Medialis

Origin: __; Insertion: Tibial Tuberosity; Function: Extends the knee.

Biceps Femoris

Origin: Ischial Tuberosity (long head), __; Insertion: Head of Fibula; Function: Flexes the knee and laterally rotates the thigh.

Adductor Group

Includes __, Adductor Longus, Adductor Brevis, Gracilis, and Pectineus; Function: Adduct and medially rotate the hip.

Piriformis

Origin: Anterior surface of the sacrum; Insertion: __; Function: Laterally rotates the hip.