Knee Muscles O/I

Question 1

Rectus Femoris

Answer 1

Origin: straight head - AIIS
reflected head - above acetabulum

Insertion: base of patella

Question 2

Vastus Lateralis

Answer 2

Origin: Upper intertrochanteric line
Lower border of greater trochanter
Lateral side gluteal tuberosity
Upper half of lateral lip of linea aspera
Lateral intermuscular septum

Insertion: Base and Lateral border of patella

Question 3

Vastus Medialis

Answer 3

Origin: Lower part of intertrochanteric line
Spiral line
Medial lip of linea aspera
Upper part of medial supracondylar line
Medial intermuscular septum

Insertion: medial border of patella

Question 4

Vastus Intermedius

Answer 4

Origin: Upper 2/3 Anterior and lateral surface of femur

Insertion: base of patella

Question 5

Biceps Femoris

Answer 5

Origin: lower medial facet on ischial tuberosity

Insertion: head of fibula and lateral tibial condyle

Question 6

Semitendinosus

Answer 6

Origin: lower medial facet on ischial tuberosity

Insertion: medial surface of upper tibia

Question 7

Semimembranosus

Answer 7

Origin: upper lateral facet on ischial tuberosity

Insertion: posteromedial surface of medial tibial condyle

Question 8

Popliteus

Answer 8

Origin: outer surface of lateral condyle of femur

Insertion: posterior surface of tibia above soleal line