Muscles of the Thigh: Anterior Femoral Muscles

Question 1

What is the origin of the sartorius?

Answer 1

anterior superior iliac spine

Question 2

What is the origin of the rectus femoris?

Answer 2

anterior inferior iliac spine

Question 3

What is the origin of the vastus lateralis?

Answer 3

linea aspera, lateral lip

Question 4

What is the origin of the vastus medialis?

Answer 4

linea apsera, medial lip

Question 5

What is the origin of the vastus intermedius?

Answer 5

anterior upper femur

Question 6

What is the insertion of the sartorius?

Answer 6

proximal medial tibia

Question 7

What is the insertion of the rectus femoris?

Answer 7

tibial tuberosity

Question 8

What is the insertion of the vastus lateralis?

Answer 8

tibial tuberosity

Question 9

What is the insertion of the vastus medialis?

Answer 9

tibial tuberosity

Question 10

What is the insertion of the vastus intermedius?

Answer 10

tibial tuberosity

Question 11

What is the action of the sartorius?

Answer 11

flex leg (knee joint), flex and lateral rotation of thigh (hip joint)

Question 12

What is the action of the rectus femoris?

Answer 12

extend leg (knee joint), flex thigh (hip joint)

Question 13

What is the action of vastus lateralis?

Answer 13

extend leg (knee joint)

Question 14

What is the action of the vastus medialis?

Answer 14

extend leg (knee joint)

Question 15

What is the action of the vastus intermedius?

Answer 15

extend leg (knee joint)

Question 16

What nerve innervates the sartorius, rectus femoris, vastus lateralis, vastus medialis, and the vastus intermedius?

Answer 16

femoral nerve