WorksheetsMicroscopic Muscle Anat & Phys Quiz
Total questions: 11
Worksheet time: 6mins
Name
Class
Date
1.
1. Name two functions of the muscular system.
4 lines
2.
2. Which of the following are characteristics shared by all muscle tissue? (choose all that apply)
a)
ability to contract
b)
ability to transport oxygen
c)
ability to lengthen or stretch
d)
ability to respond to a stimulus
e)
ability to filter substances
3.
3. Which type of muscle tissue is shown in the image?
a)
smooth
b)
skeletal
c)
cardiac
4.
6. Which membrane surrounds each fascicle?
a)
endomysium
b)
perimysium
c)
epimysium
5.
7. The neurotransmitter that travels through the synaptic cleft of the neuromuscular junction is
a)
Calcium
b)
Na+
c)
K+
d)
Acetylcholine
6.
8. The protein channels in the axon terminal that allow calcium through in response to an impulse are ____________-gated channels, while the acetylcholine channels on the sarcolemma of the muscle fiber are ____________-gated.
a)
chemical, voltage
b)
voltage, neurotransmitter
c)
neurotransmitter, voltage
d)
voltage, chemical
7.
9. Which two molecules move in and out of the muscle fiber, continuing the impulse?
a)
Calcium and Acetylcholine
b)
Na+ and K+
c)
Na+ and Calcium
d)
K+ and Acetylcholine
8.
10. What is the purple filament in the image below?
a)
actin
b)
myosin
c)
acetylcholine
d)
sarcolemma
9.
10. What is the black line in the image below?
a)
Z-line
b)
M-line
c)
cross-bridges
10.
11. Calcium binds to _____________, causing __________ to move away from the active site.
a)
tropomyosin, myosin
b)
tropomyosin, troponin
c)
troponin, tropomyosin
d)
troponin, myosin
11.
12. When myosin pivots, pulling on the actin filament, this is called the ___________ stroke.
a)
return
b)
power
c)
active
d)
bridge
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