unit 10 review
UNIT
10
Check Your Recall
1
REVIEW
Label the following terms on Figure 10.13.
Ⅺ
Ⅺ
Ⅺ
Ⅺ
Ⅺ
Epimysium
Fascicle
Muscle fiber
Perimysium
Tendon
Tendon
Fascicle
Epimysium
Perimysium
Muscle fiber
FIGURE
10.13 Basic skeletal muscle structure
Muscle Tissue
R
UNIT
10 S 7
2
Label the following terms on Figure 10.14.
Ⅺ A band
Ⅺ I band
Ⅺ Myofibril
Ⅺ Nucleus
Ⅺ Sarcolemma
Ⅺ Sarcomere
T-tubule
Ⅺ Sarcoplasmic reticulum
Ⅺ T-tubule
Ⅺ Z disk
Sarcoplasmic reticulum
Myofibril
Sarcolemma
Z disk
I band
A band
Sarcomere
Nucleus
FIGURE
3
10.14 Skeletal muscle fiber
The striations in skeletal muscle fibers are attributable to
a. light and dark pigments found in the sarcoplasm.
b. the arrangement of thick and thin filaments in the myofibril.
c. overlapping Z disks.
d. overlapping adjacent skeletal muscle fibers.
4
The sarcoplasmic reticulum
a. stores sodium ions.
b. forms from inward extensions of the sarcolemma.
c. stores calcium ions.
d. is made of contractile proteins.
5
Fill in the blanks: Thick filaments are composed of the protein composed of the proteins
6
actin
,
troponin
myosin
, and
, and thin filaments are
tropomyosin
.
Which of the following is not a part of the neuromuscular junction?
a. Axon terminal
b. Dendritic receptor
c. Synaptic cleft
d. Motor end plate
Muscle Tissue
R
UNIT
10 S 8
7
Excitation-contraction coupling refers to
a. the muscle fiber’s depolarization.
b. the relationship between length of the sarcomere and the tension generated.
c. the sliding of thick and thin filaments past one another.
d. the relationship between excitation at the sarcolemma and release of calcium ions from the sarcoplasmic reticulum. 8
Number the following events of skeletal muscle contraction in the proper order, with number 1 for the first event and number 9 for the last event.
6
____ Actin binds to the
10
Check Your Recall
1
REVIEW
Label the following terms on Figure 10.13.
Ⅺ
Ⅺ
Ⅺ
Ⅺ
Ⅺ
Epimysium
Fascicle
Muscle fiber
Perimysium
Tendon
Tendon
Fascicle
Epimysium
Perimysium
Muscle fiber
FIGURE
10.13 Basic skeletal muscle structure
Muscle Tissue
R
UNIT
10 S 7
2
Label the following terms on Figure 10.14.
Ⅺ A band
Ⅺ I band
Ⅺ Myofibril
Ⅺ Nucleus
Ⅺ Sarcolemma
Ⅺ Sarcomere
T-tubule
Ⅺ Sarcoplasmic reticulum
Ⅺ T-tubule
Ⅺ Z disk
Sarcoplasmic reticulum
Myofibril
Sarcolemma
Z disk
I band
A band
Sarcomere
Nucleus
FIGURE
3
10.14 Skeletal muscle fiber
The striations in skeletal muscle fibers are attributable to
a. light and dark pigments found in the sarcoplasm.
b. the arrangement of thick and thin filaments in the myofibril.
c. overlapping Z disks.
d. overlapping adjacent skeletal muscle fibers.
4
The sarcoplasmic reticulum
a. stores sodium ions.
b. forms from inward extensions of the sarcolemma.
c. stores calcium ions.
d. is made of contractile proteins.
5
Fill in the blanks: Thick filaments are composed of the protein composed of the proteins
6
actin
,
troponin
myosin
, and
, and thin filaments are
tropomyosin
.
Which of the following is not a part of the neuromuscular junction?
a. Axon terminal
b. Dendritic receptor
c. Synaptic cleft
d. Motor end plate
Muscle Tissue
R
UNIT
10 S 8
7
Excitation-contraction coupling refers to
a. the muscle fiber’s depolarization.
b. the relationship between length of the sarcomere and the tension generated.
c. the sliding of thick and thin filaments past one another.
d. the relationship between excitation at the sarcolemma and release of calcium ions from the sarcoplasmic reticulum. 8
Number the following events of skeletal muscle contraction in the proper order, with number 1 for the first event and number 9 for the last event.
6
____ Actin binds to the