Question

2.02 functions of skeletal muscles review guide
directions: match the name of each muscle to the corresponding function by placing the correct letter in each space provided.

1. extends and rotates femur
2. flexes thigh and extends leg
3. points toes and flexes lower leg
4. helps with breathing
5. raises ribs and helps with breathing
6. flexes and rotates thigh and leg
7. extends the lower arm
8. abducts the upper arm
9. abducts and rotates thigh
10. compresses abdomen
11. flexes upper arm and helps abduct it
12. raises corner of mouth
13. flexes and rotates the head
14. moves the shoulder and extends the head
15. flexes lower arm

a. gluteus medius
b. sartorius
c. rectus abdominus
d. deltoid
e. biceps brachii
f. gluteus maximus
g. sternocleidomastoid
h. diaphragm
i. rectus femoris
j. gastrocnemius
k. trapezius
l. intercostals
m. zygomaticus major
n. triceps brachii
o. pectoralis major

Explanation:

1. The gluteus maximus extends and rotates the femur.
2. The rectus femoris flexes the thigh and extends the leg.
3. The gastrocnemius points the toes and flexes the lower leg.
4. The diaphragm helps with breathing.
5. The intercostals raise the ribs and help with breathing.
6. The sartorius flexes and rotates the thigh and leg.
7. The triceps brachii extends the lower arm.
8. The deltoid abducts the upper arm.
9. The gluteus medius abducts and rotates the thigh.
10. The rectus abdominus compresses the abdomen.
11. The pectoralis major flexes the upper arm and helps abduct it.
12. The zygomaticus major raises the corner of the mouth.
13. The sternocleidomastoid flexes and rotates the head.
14. The trapezius moves the shoulder and extends the head.
15. The biceps brachii flexes the lower arm.

Answer:

1. F. Gluteus maximus
2. K. Rectus femoris
3. J. Gastrocnemius
4. I. Diaphragm
5. L. Intercostals
6. B. Sartorius
7. N. Triceps brachii
8. D. Deltoid
9. A. Gluteus medius
10. C. Rectus abdominus
11. O. Pectoralis major
12. M. Zygomaticus major
13. G. Sternocleidomastoid
14. K. Trapezius
15. E. Biceps brachii