Anterior Hip and Thigh

Question 1

TFL

Answer 1

Origin: Lateral aspect of crest of ilium between anterior superior iliac spine and tubercle of the crest

Insertion: Iliotibial tract of fascia latae

Innervation: L4-L5-S; Superior gluteal nerve

Function: Assists in flexion, abduction and medial rotation of the hip joint. Assists with knee extension and stabilizes the knee in extension.

Question 2

Rectus Femoris

Answer 2

Origin: Straight head
originates from the anterior inferior iliac spine; reflected tendon originates from the ilium just superior to the acetabulum

Insertion: Quadriceps femoris tendon

Innervation: L2-L3-L4 Femoral nerve

Function: Femoral nerve
Flexes the thigh at the hip joint and extends the leg at the knee joint

Question 3

Vastus Lateralis

Answer 3

Origin: Femur - lateral part of intertrochanteric line, margin of greater tro- chanter, lateral margin of gluteal tuberosity, lateral lip of the linea aspera

Insertion: Quadriceps femoris tendon of femur and lateral margin of patella

Innervation: L2-L3-L4 Femoral nerve

Function: Extends the leg at the knee joint

Question 4

Vastus Intermedius

Answer 4

Origin: Femur - upper 2/3rds of anterior and lateral surfaces

Insertion: Quadriceps femoris tendon

Innervation: L2-L3-L4 Femoral nerve

Function: Extends the leg at the knee joint

Question 5

Vastus Medialis

Answer 5

Origin: Femur- medial part of intertrochanteric line, pectineal line, medial lip of the linea aspera, me- dial supracondylar line

Insertion: Quadricpes femoris tendon and medial border of the patella

Innervation: L2-L3-L4 Femoral nerve

Function: Extends the leg at the knee joint