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BIO120 Ch 10 lecture 1

Total questions: 56

Worksheet time: 54mins

Name
Class
Date
1.
This muscle is only found in your heart.
a)
Skeletal
b)
Smooth
c)
Rough
d)
Cardiac
2.
These are the muscles attached to your bones.
a)
Skeletal
b)
Smooth
c)
Rough
d)
Cardiac
3.
These are the muscles found in your organs.
a)
Skeletal
b)
Smooth
c)
Rough
d)
Cardiac
4.
Muscle only found in the heart that is resistant to fatigue is known as?
a)
Cardiac
b)
Smooth
c)
Skeletal
d)
Rough
5.
The three types of muscles are:
a)
smooth, cardiac, and skeletal
b)
smooth, medium, and hard
c)
skeletal, circulatory, and respiratory
d)
soft, rough, and fluffy
6.
Muscle is attached to bone by a connective tissue called a ___________.
a)
tendon
b)
ligament
c)
joint
d)
cartilage
7.

Skeletal muscle tissue is

a)

Striated and involuntary

b)

Striated and voluntary

c)

Non- striated and involuntary

d)

Non-striated and voluntary

8.

Cardiac muscle tissue is

a)

Striated and involuntary

b)

Striated and voluntary

c)

Non- striated and voluntary

d)

Non- striated and involuntary

9.

Smooth muscle tissue is

a)

Striated and involuntary

b)

Striated and voluntary

c)

Non- striated and involuntary

d)

Non- striated and voluntary

10.

Skeletal tissue is

a)

Multinucleated

b)

Uninucleated

11.

This is an involuntary muscle tissue found in the blood vessels and stomach

a)

Skeletal

b)

Smooth

c)

Cardiac

12.

This is the only voluntary muscle type

a)

Skeletal

b)

Smooth

c)

Cardiac

13.

The ability of a muscle to respond to stimulus is

a)

Contractability

b)

Elasticity

c)

Excitability

d)

Extensibility

14.

The ability of a muscle to get shorter and thicker is

a)

Contractability

b)

Elasticity

c)

Excitability

d)

Extensibility

15.

The ability of a muscle to be stretched beyond its original length

a)

Contractability

b)

Elasticity

c)

Excitability

d)

Extensibility

16.

The ability of a muscle to return to its original length

a)

Contractability

b)

Elasticity

c)

Excitability

d)

Extensibility

17.

The connective tissue wrapper around an entire muscle

a)

Endomysium

b)

Epimysium

c)

Perimysium

d)

Exomysium

18.

The connective tissue wrapper around a single muscle fiber

a)

Endomysium

b)

Epimysium

c)

Perimysium

d)

Exomysium

19.

The plasma membrane of a muscle cell is called the

a)

Epimysium

b)

Endomysium

c)

Sarcolemma

d)

Sarcoplasm

20.

The cylindrical thread like organelle that run the length of the muscle cell

a)

Myofibers

b)

Myofilaments

c)

Myofibrils

d)

Fasicles

21.

Organelle that store calcium ions in a muscle cell

a)

Sarcolemma

b)

Sarcoplasm

c)

Sarcoplasmic Reticulum

d)

Sarcoma

22.

Extensions of sarcolemma that carry the muscle impulse deep into the core of a muscle cell

a)

Transverse Tubule

b)

Sarcoplasmic Reticulum

c)

Fasicles

d)

Myofibrils

23.

Which of the following wraps around a fasicle?

a)

Sarcolemma

b)

Sarcolplasmic Reticulum

c)

Tendon

d)

Permysium

24.

Which is arranged smallest to largest?

a)

Myofilament-Myofibril-Fiber-Muscle

b)

Fiber-Myofilament-Myofibril-Muscle

c)

Myofibril-Fiber-Myofilament-Muscle

d)

Myofilament-Fiber-Myofibril-Muscle

25.

The functional unit of a muscle

a)

Fascicle

b)

Myofiber

c)

Myofibril

d)

Sarcomere

26.

Thick myofilaments are made of which protein?

a)

Actin

b)

Myosin

c)

Troponin

d)

Tropomyosin

27.

What attaches directly to the z-line in the sarcomere?

a)

Endomysium

b)

Tendon

c)

Thin myofilament

d)

Sarcoplasmic Reticulum

28.

The region of a sarcomere where only thick myofilaments is found

a)

A-band

b)

I-band

c)

H-zone

d)

Z-line

29.

The region in a sarcomere where both thin and thick myofilaments are found

a)

A-band

b)

I-band

c)

H-zone

d)

Z-line

30.
What is the name of the thin filaments in the muscle cell?
a)
Actin
b)
Myosin
c)
Myoglobin
d)
Titan
31.
Involuntary
a)
skeletal
b)
cardiac
c)
smooth
d)
smooth and cardiac
32.
The A-band is represented by the number
a)
2
b)
5
c)
6
d)
7
33.
The I band is represented by the number
a)
4
b)
5
c)
6
d)
7
34.
The Z disc is represented by the number
a)
1
b)
2
c)
3
d)
4
35.
The H-Zone is represented by the number
a)
1
b)
2
c)
3
d)
4
36.

Which of the following are functions of the muscular system?

a)

Produce body movement

b)

Stabilize body position

c)

Store and move substances in the body

d)

Thermoregulation

37.
Connective tissue that surrounds each skeletal muscle (outside of the epimysium):
a)
Endomysium
b)
Perimysium
c)
Epimysium
d)
Fascia
38.
A bundle of muscle fibers is called _____.
a)
actin
b)
myosin
c)
fascicle
d)
sarcomere
39.
What are the two regulatory proteins involved in muscle contraction?
a)
troponin and actin
b)
troponin and tropomyosin
c)
tropomyosin and myosin
d)
troponin and myosin
40.
The name of the theory that describes muscle contraction is
a)
Sliding Filament
b)
Sliding Glass Doors
c)
Contraction Coupling
d)
Neuromuscular Junction
41.
During crossbridge formation
a)
myosin attaches to actin
b)
myosin attaches to troponin
c)
actin attaches to troponin
d)
actin attaches to tropomyosin
42.
The striations found on skeletal muscle fibers are created by zones of the sarcomere.  Which zone creates the dark bands of a muscle fiber?
a)
A zone
b)
H Zone
c)
Both A and H Zone
d)
I zone
43.
The striations found on skeletal muscle fibers are created by zones of the sarcomere.  Which zone creates the light bands of a muscle fiber?
a)
A zone
b)
H Zone
c)
Both A and H Zone
d)
I zone
44.

What happens to the I zones during a sarcomere contraction?

a)

It shortens

b)

It stays the same

c)

It lengthens

d)

None of these

45.
What happens to the Z lines during a sarcomere contraction?
a)
It disappears
b)
gets closer together
c)
It gets bigger
d)
None of these
46.
What happens to the H zone during a sarcomere contraction?
a)
It disappears
b)
It gets closer together
c)
It gets bigger
d)
None of these
47.
What state is the sarcomere in #3
a)
Relaxed
b)
Contracting
c)
Fully Contracted
d)
None of the above
48.
What state is the sarcomere in #3
a)
Relaxed
b)
Contracting
c)
Fully Contracted
d)
None of the above
49.
What state is the sarcomere in #1
a)
Relaxed
b)
Contracting
c)
Fully Contracted
d)
None of the above
50.

What structure is the start and stopping point for what separates sarcomeres?

a)

Z-disc

b)

M-line

c)

H-line

d)

Titin filaments

51.

In the sliding filament theory, what change occurs when muscles contract?

a)

Myosin becomes shorter

b)

Actin becomes shorter

c)

Myosin and actin become shorter

d)

Neither; neither protein shortens

52.
A mitochondria's role 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
53.
Which protein is responsible for helping the muscle 'relax' back to its neutral position?
a)
Actin
b)
Myosin
c)
Titin
d)
Tropomyosin
54.

Oxygen is stored in the muscle by...

a)

hemoglobin

b)

myoglobin

55.
The pigment in the muscle fibers that stores oxygen is
a)
hemoglobin
b)
myoglobin
c)
melanin
d)
glycogen
56.

A broad, flat tendon that connects two muscles together is known as a

a)

Fascicle

b)

Perimysium

c)

Aponeurosis

d)

Myofibril

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