Muscles of the Anterior (Extensor) Compartment

Question 1

Extensor muscles of the leg are also _______ of the thigh

Answer 1

extensor muscles of the leg are also FLEXORS of the thigh

Question 2

what two muscles are included in the anterior extensor compartment?

Answer 2

quadriceps femoris, sartorius

Question 3

The common tendon of the quads inserts where?

Answer 3

patella

Question 4

Under the patella the tendon of the Quadriceps femoris continues as _________

Answer 4

patellar ligament

Question 5

What is the longest muscle of the body

Answer 5

sartorius

Question 6

What is the fibre direction of the sartorius

Answer 6

runs diagonally across the thigh

Question 7

What are the four heads of the quadriceps femoris?

Answer 7

rectus femoris, vastus lateralis, vastus medialis, vastus intermedius

Question 8

True or false: the four heads of quadriceps femoris have all different insertions

Answer 8

False: the four heads have a common insertion

Question 9

True or false: The Quads and sartouris muscle both extend the leg

Answer 9

false: ONLY the quads extend the leg

Question 10

What is the origin of the rectus femoris?

Answer 10

anterior inferior iliac spine

Question 11

What is the second function of the rectus femoris

Answer 11

flexes the thigh

Question 12

What is the origin of the vastus lateralis

Answer 12

greater trochanter, linea aspera

Question 13

What is the origin of the vastus medialis

Answer 13

linea aspera

Question 14

What is the origin of the vastus intermedius

Answer 14

anterolateral surface of shaft of femur

Question 15

What is the origin of the sartuorius

Answer 15

anterior superior iliac spine

Question 16

What is the insertion of the sartorius

Answer 16

medial superior surface of tibia

Question 17

What are the actions of the sartorius

Answer 17

flexion of thigh and leg, abduction and lateral rotation of thigh

Question 18

What muscle is the ‘crossed leg sitting’ muscle

Answer 18

sartorius