1. Anterior extensors that act on the knee
Knee_2.mpg

2. The four heads of the quadriceps femoris muscle include all of the following except the _____________.
a. vastus medialis
b. vastus lateralis
c. vastus intermedius
d. rectus femoris
e. sartorius
Answer: E

3. All four heads of the quadriceps femoris muscle form a single insertion at three locations of the tibia: _____________.
a. tibial tuberosity, tibial crest, linea aspera
b. patella, superior margin, lateral condyles
c. patella, the tibial tuberosity, medial condyles
d. patella, linea aspera, tibial tuberosity
Answer: C

4. The longest muscle in the body is the _____________.
a. sartorius
b. quadriceps femoris
c. adductor magnus
d. rectus femoris
Answer: A