Question

sartorius
compared with other thigh muscles described here, the thin, straplike sartorius (sar - tore - us) muscle is not too important. however, it is the most superficial muscle of the (1. ) and so is rather hard to miss (figure 6.20c). it runs obliquely across the thigh from the anterior iliac crest to the medial side of the tibia. it is a weak thigh flexor. the sartorius is commonly referred to as the \tailors\ muscle because it acts as a (2. ) to help tailors sit with both legs crossed in front of them.
quadriceps group
the quadriceps (kwodri - seps) group consists of four muscles—the rectus femoris and three vastus muscles—that flesh out the (3. ) thigh. (only two vastus muscles are visible in figure 6.20c. the third, the vastus intermedius, is obscured by the rectus femoris muscle, which lies over it.) the vastus muscles originate from the femur; the rectus femoris originates on the pelvis. all four muscles insert into the tibial tuberosity via the (4. ) ligament. the group as a whole acts to extend the knee powerfully, as when kicking a soccer ball. because the rectus femoris crosses two joints, the hip and knee, it can also help to flex the hip. the vastus lateralis and rectus femoris are sometimes used as intramuscular injection sites (figure 6.20d), particularly in infants, who have poorly developed (5. ) muscles.

○ 1. patellar 2. gluteus 3. thigh 4. synergist 5. anterior
○ 1. anterior 2. patellar 3. gluteus 4. thigh 5. synergist
○ 1. synergist 2. anterior 3. patellar 4. gluteus 5. thigh
○ 1. thigh 2. synergist 3. anterior 4. patellar 5. gluteus
○ 1. gluteus 2. thigh 3. synergist 4. anterior 5. patellar

Explanation:

The sartorius is the most superficial muscle of the thigh. It acts as a synergist to help tailors sit cross - legged. The quadriceps flesh out the anterior thigh and insert into the tibial tuberosity via the patellar ligament. Infants have poorly developed gluteus muscles, so vastus lateralis and rectus femoris are sometimes used for intramuscular injections.

Answer:

1. thigh 2. synergist 3. anterior 4. patellar 5. gluteus