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Anatomy Chapter 07.1-07.5: Muscle Tissue

Total questions: 60

Worksheet time: 30mins

Name
Class
Date
1.

The entire muscle is encased by a connective tissue called what?

a)

Sacromere

b)

Sarcoplasm

c)

Myosin

d)

Epimysium

2.

The _______________ covers bundles of cells (fascicles) within the muscle.

a)

endomysium

b)

perimysium

c)

sarcoplasm

d)

tendon

3.

The cord-like connective tissue that attaches a muscle to a bone is called:

a)

a tendon

b)

a ligament

c)

a sarcomere

d)

a fascicle

4.

The functional contractile unit within a muscle fiber is called what?

a)

Sarcomere

b)

Fascia

c)

Sarcoplasm

d)

Tendon

5.

The cytoplasm of a muscle cell is called the:

a)

Myosin

b)

Actin

c)

Fascia

d)

Sarcoplasm

6.

Structure B is known as the thin filaments of the sarcomere. What is another name for the thin filaments?

a)

myosin

b)

actin

c)

fascia

d)

myofibril

7.

Structure C is known as the thick filament of the sarcomere, it is also known as:

a)

myosin

b)

actin

c)

fascia

d)

myofibrils

8.

Structure A is located on either side of the sarcomere. What is it called?

a)

A band

b)

I band

c)

Z disc

d)

fascia

9.

The unit between A and A is called?

a)

a sarcomere

b)

The I band

c)

the Z disc

d)

fascia

10.

This type of muscle tissue is found only in the heart.

a)

Skeletal

b)

Cardiac

c)

Smooth

11.

This type of muscle tissue is found in the walls of hollow organs such as the stomach.

a)

Skeletal

b)

Cardiac

c)

Smooth

12.

This type of muscle tissue is attached to bones and helps control voluntary movement.

a)

Skeletal

b)

Cardiac

c)

Smooth

13.

Which of the following is a type of muscle tissue?

a)

Skeletal

b)

Cardiac

c)

Smooth

d)

All of the above

14.

What is the function of muscle tissue?

a)

It is a tissue that functions in lining, covering, and glandular tissue

b)

It is a tissue involved in protecting, supporting, and binding together other body tissues

c)

It is a tissue that contracts and shortens to produce movement

d)

It is a tissue that receives and conducts electrochemical impulses from one part of the body to another

15.

Which types of muscle tissue are voluntary?

a)

Cardiac Muscle

b)

Smooth Muscle

c)

Skeletal Muscle

d)

Skeletal Muscle and Smooth Muscle

16.

Which type(s) of muscle tissue have visible striations?

a)

Only Cardiac Muscle

b)

Only Skeletal Muscle

c)

Only Smooth Muscle

d)

Skeletal and Cardiac Muscle

17.

What is another name for #1?

a)

Skeletal muscle

b)

Cardiac muscle

c)

Smooth muscle

d)

Myofiber

18.

What is another name for #2? (Hint: It is a muscle layer)

a)

Skeletal muscle

b)

Epimysium

c)

Perimysium

d)

Endomysium

19.

What is another name for #5? (Hint: It is a muscle layer)

a)

Skeletal muscle

b)

Epimysium

c)

Perimysium

d)

Endomysium

20.

What is another name for #6? (Hint: It is a muscle layer)

a)

Skeletal muscle

b)

Epimysium

c)

Perimysium

d)

Endomysium

21.

What is the name of #3?

a)

Skeletal muscle

b)

Myofibril

c)

Myofiber

d)

Tendon

22.

Which number represents a fascicle?

a)

#6

b)

#5l

c)

#4

d)

#10

23.

What is another name for #9 (cell membrane)?

a)

Sarcomere

b)

Sarcolemma

c)

Myofibril

d)

Myofiber

24.

What is another name for #10?

a)

Sarcomere

b)

Sarcolemma

c)

Myofibril

d)

Myofiber

25.

What is another name for a muscle cell?

a)

Sarcomere

b)

Sarcolemma

c)

Myofibril

d)

Myofiber

26.

The skeletal system does all of the following EXCEPT:

a)

Produces red blood cells

b)

Stores calcium and minerals

c)

Protects organs

d)

Excretes waste

27.

Which thin filament protein binds to Ca+ during muscle contraction?

a)

Actin

b)

Myosin

c)

Troponin

d)

Tropomyosin

28.

What is the name of the plasma membrane surrounding each muscle fiber?

a)

T Tubule

b)

Sarcolemma

c)

Sarcoplasm

d)

Nucleus

29.

What protein makes up the thick filaments?

a)

Troponin

b)

Tropomyosin

c)

Myosin

d)

Actin

30.

The enzyme that functions to degrade ACh during excitation-contraction coupling is...

a)

Tropomyosin

b)

Acetylcholinesterase

c)

Troponin

d)

Creatine Kinase

31.

What is the initial process of the contraction cycle?

a)

The head of myosin binds to actin

b)

The head of myosin releases phosphate

c)

A power stroke occurs

d)

Splitting ATP into ADP and phosphate

e)

The head of myosin binds to ATP

32.

The period that occurs between the application of the stimulus (zero time on the graph) and the start of the contraction is called...

a)

Latent period

b)

Relaxation

c)

Contraction

d)

Action potential

e)

Rest period

33.

___ are thin filaments.

a)

Troponin

b)

Tropomyosin

c)

Actin

d)

Myosin

34.

___ are thick filaments.

a)

Actin

b)

Myosin

c)

Troponin

d)

Tropomyosin

35.

___ are regulatory proteins that cover the myosin binding site on the actin.

a)

Troponin-tropomyosin

b)

Sarcomere

c)

Sarcolemma

d)

Sarcoplasmic reticulum

36.

Calcium binds to the ___ in the troponin-tropomyosin complex.

a)

troponin

b)

tropomyosin

c)

actin

d)

myosin

37.

Calcium is stored in the ___.

a)

sarcoplasm

b)

sarcolemma

c)

sarcoplasmic reticulum

d)

transverse tubules

38.

A ___ extends from one Z disc to another Z disc.

a)

Sarcolemma

b)

Neuromuscular junction

c)

Sarcomere

d)

Motor end plate

39.

___ gets shorter during contraction.

a)

Actin

b)

Myosin

c)

Troponin-Tropomyosin

d)

None of these

40.

___ forms a cross-bridge with actin.

a)

Actin

b)

Myosin

c)

Calcium

d)

ATP

41.

___ provides energy for muscle contraction and relaxation.

a)

cAMP

b)

ADP

c)

ATP

d)

M line

42.

Which ion below is NOT critical to muscle contraction?

a)

Sodium Ion

b)

Calcium Ion

c)

Potassium Ion

d)

Phosphorus Ion

43.

The role of mitochondria in muscle contraction is the production of...

a)

Synthesis of ATP

b)

Metabolism of ATP

c)

Synthesis of Proteins

d)

Metabolism of Worn out Proteins

44.

Which is more likely to cause muscle contraction?

a)

Actin pulls on the myosin

b)

Myosin pulls on the titin

c)

Myosin pulls on actin

d)

Actin pulls on titin

45.

Which two ions are pumped in/out of the sarcolemma as part of muscle contraction?

a)

Sodium / Calcium

b)

Calcium / Potassium

c)

Sodium / Potassium

46.
What opens the Calcium Ion Transport Channel embedded in the pre-synaptic terminal?
a)
Binding of Acetylcholine
b)
Binding of Calcium Ion
c)
An Action Potential
d)
Binding of Sodium Ion
47.
Calcium that will eventually enter the muscle cell to bind with troponin is stored in the...
a)
T-Tubule of the Muscle Cell
b)
Sarcoplasmic Reticulum of the Muscle Cell
c)
The Sarcolemma of the Muscle Cell
d)
The interstitial space outside the muscle cell near the pre-synaptic terminal.
48.
Which of the following occurs first in muscle contraction?
a)
Myosin globular head 'uncoils' releasing stored energy.
b)
Cross Bridges are formed between actin and myosin
c)
Tropomyosin changes shape (conformation) to expose myosin binding sites.
d)
Calcium Binds with Troponin
49.
A build up of charge in the sarcolemma reaches _____ to begin the propagation of an action potential down the length of the sarcolemma.
a)
Capacity
b)
Threshold
c)
Ionization
d)
Critical
50.
During muscle contraction the 'Z' Lines will...
a)
Disappear
b)
Get Farther apart
c)
Get Closer Together
d)
Appear Thicker
51.
During full muscle contraction the H Zone will...
a)
Disappear
b)
Get wider
52.
During full muscle contraction the A Band will...
a)
Disappear
b)
Get wider
c)
Stay the same
d)
Get narrower
53.
Axon terminal is represented by
a)
1
b)
2
c)
3
d)
4
54.
Number 3 represents which of the following events
a)
action potential reaches the axon terminal
b)
sodium rushes into the muscle fiber
c)
potassium leaving the muscle fiber
d)
ACh crossing the synaptic cleft
55.
Z represents
a)
Dendrite
b)
Axon Terminal
c)
Neurotransmitters
d)
Synapse
56.
The axon terminal is represented by
a)
7
b)
8
c)
9
d)
10
57.
What state is the sarcomere in #1
a)
Relaxed
b)
Contracting
c)
Fully Contracted
d)
None of the above
58.
What state is the sarcomere in #2
a)
Relaxed
b)
Contracting
c)
Fully Contracted
d)
None of the above
59.
What is a crossbridge?
a)
Where myosin binds to actin
b)
Where the calcium crosses into the cytoplasm
c)
Where calcium binds with troponin
d)
None of the answers are correct.
60.

What is the part of the muscle cell labeled C?

a)

mitochondria

b)

thin filament (actin)

c)

thick filament (myosin)

d)

myofibril

e)

Sarcolemma

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