Chapter 09: Muscular System
Herlihy: The Human Body in Health and Illness, 6th Edition
MULTIPLE CHOICE
1. Which of the following muscles is described as striated and involuntary?
a. Aponeurosis
b. Smooth
c. Skeletal
d. Cardiac
ANS: D
2. The orbicularis oris muscle
a. surrounds the mouth.
b. flexes the head.
c. is the smiling muscle.
d. closes the eye.
ANS: A
3. Which of the following is not a facial muscle?
a. Orbicularis oculi
b. Zygomaticus
c. Sternocleidomastoid
d. Frontalis
ANS: C
,4. Actin is
a. located within the neuromuscular junction.
b. a contractile protein that is part of the thin filament.
c. called the thick filament.
d. stored within the sarcoplasmic reticulum.
ANS: B
5. Which of the following forms cross-bridges with actin?
a. Sarcoplasmic reticulum
b. T tubules
c. Myosin
d. Sarcolemma
ANS: C
, 6. “Pumping iron” is most likely to cause
a. atrophy.
b. contracture formation.
c. hypertrophy.
d. muscular dystrophy.
ANS: C
7. Which muscle is located on the posterior area of the body?
a. Latissimus dorsi
b. Pectoralis major
c. Quadriceps femoris
d. Sternocleidomastoid
ANS: A
8. Which group of muscles is located on the posterior thigh?
a. Rotator cuff muscles
b. Quadriceps femoris
c. Hamstrings
d. Muscles of mastication
ANS: C
9. The biceps femoris, semitendinosus, and semimembranosus
a. flex the foot.
b. attach to the patella.
c. are the hamstrings.
d. are located on the anterior thigh.
ANS: C
10. The rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius
a. insert on the calcaneus.
b. flex the leg at the knee.
N riRceSpI
c. are antagonistic to the quadU s fN
G B
emoTris..
d. are the muscles of the quadriceps femoris.
ANS: D
11. The quadriceps femoris group and the hamstrings
a. lie along the anterior part of the leg.
b. flex the foot.
c. lie along the thigh.
d. shrug the shoulders.
ANS: C
12. Which flat muscle covers the forehead and raises the eyebrows (for a “surprised” look)?
a. Frontalis
b. Zygomaticus
c. Masseter
d. Buccinator
ANS: A
Herlihy: The Human Body in Health and Illness, 6th Edition
MULTIPLE CHOICE
1. Which of the following muscles is described as striated and involuntary?
a. Aponeurosis
b. Smooth
c. Skeletal
d. Cardiac
ANS: D
2. The orbicularis oris muscle
a. surrounds the mouth.
b. flexes the head.
c. is the smiling muscle.
d. closes the eye.
ANS: A
3. Which of the following is not a facial muscle?
a. Orbicularis oculi
b. Zygomaticus
c. Sternocleidomastoid
d. Frontalis
ANS: C
,4. Actin is
a. located within the neuromuscular junction.
b. a contractile protein that is part of the thin filament.
c. called the thick filament.
d. stored within the sarcoplasmic reticulum.
ANS: B
5. Which of the following forms cross-bridges with actin?
a. Sarcoplasmic reticulum
b. T tubules
c. Myosin
d. Sarcolemma
ANS: C
, 6. “Pumping iron” is most likely to cause
a. atrophy.
b. contracture formation.
c. hypertrophy.
d. muscular dystrophy.
ANS: C
7. Which muscle is located on the posterior area of the body?
a. Latissimus dorsi
b. Pectoralis major
c. Quadriceps femoris
d. Sternocleidomastoid
ANS: A
8. Which group of muscles is located on the posterior thigh?
a. Rotator cuff muscles
b. Quadriceps femoris
c. Hamstrings
d. Muscles of mastication
ANS: C
9. The biceps femoris, semitendinosus, and semimembranosus
a. flex the foot.
b. attach to the patella.
c. are the hamstrings.
d. are located on the anterior thigh.
ANS: C
10. The rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius
a. insert on the calcaneus.
b. flex the leg at the knee.
N riRceSpI
c. are antagonistic to the quadU s fN
G B
emoTris..
d. are the muscles of the quadriceps femoris.
ANS: D
11. The quadriceps femoris group and the hamstrings
a. lie along the anterior part of the leg.
b. flex the foot.
c. lie along the thigh.
d. shrug the shoulders.
ANS: C
12. Which flat muscle covers the forehead and raises the eyebrows (for a “surprised” look)?
a. Frontalis
b. Zygomaticus
c. Masseter
d. Buccinator
ANS: A
