Download The Muscular System

Mrs. Keadle JH Science
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The Muscular System
Match the following vocabulary words to their definition. Please write a
capital letter in the blank.
1.
muscle
A. voluntary muscle that is
attached to bones and helps
you move.
B. involuntary muscle that
makes up the heart.
2.
3.
tendon
contract
C. involuntary muscle found in
internal organs and blood
vessels.
D. the tissue that contracts and
relaxes, making movement
possible.
4.
5.
relax
smooth muscle
E. muscles under conscious
control
F. muscles not under conscious
control. They work
automatically.
6.
cardiac muscle
G. tough strand of tissue that
connects muscle to bone.
7.
skeletal muscle
H. when a muscle fiber shortens
8.
9.
involuntary muscle
voluntary muscle
I. when a muscle fiber
lengthens
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The Muscular System
Mrs. Keadle JH Science
Part of Muscular
System
Description
smooth muscle
Found in digestive tract and walls of blood vessels.
Acts involuntarily.
cardiac muscle
Specialized muscle found only in the heart. Acts
involuntarily.
skeletal muscle
Attached to bones to aid movement. Acts voluntarily
and involuntarily.
tendons
Strands of tough connective tissue that connect
skeletal muscles to bones.
10
As part of an extended field investigation, Steve made the table above to
summarize facts about the muscular system. Based on the
information in the table, it can be concluded that A
there are three types of muscle
B
tendons act voluntarily
C
only skeletal muscle can act involuntarily
D
not here
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The Muscular System
Mrs. Keadle JH Science
11
How do pairs of skeletal muscles
work together?
12 Why is the biceps classified as a
skeletal muscle?
F
Both muscles contract at the
same time.
A
It is attached to bones and is
used to move them.
G
Both muscles extend at the
same time.
B
It reacts and tires slowly.
C
It is involuntary
H
While one muscle in the pair
contracts, the other returns to
its original length.
D
It is found in internal organs
J
One muscle in the pair pulls
on the bone, while the second
muscle pulls on the first
muscle.
13
The main function of the muscular
system is F
support of the body
G
break down of food
H
movement of the body
J
removal of waste
14
Tendons play an important role in
the body. What is the function of
tendons?
A
They produce blood cells.
B
They produce testosterone.
C
They connect bones at a joint.
D
They connect skeletal muscle
to bone.
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The Muscular System
Mrs. Keadle JH Science
15
16
Mindy has been training to run in a marathon. She often takes her dog
Rusty with her when she goes running. Finally, race day arrives. Mindy
began the marathon at the sound of the buzzer. How do Mindy’s skeletal
and muscular systems work together to help her run?
F
The muscles provide support for the bones and the bones transport
oxygen.
G
The muscles help transport nutrients to the bones and joints.
H
The bones transport energy to the muscles to help her run faster.
J
The skeleton provides support and the muscles move the bones.
Warm blooded animals have the ability to shiver when they are cold. The
muscles begin to move very quickly. During this process, heat is given off.
What is the energy transfer that is occurring when an animal shivers?
A
thermal energy to chemical energy
B
chemical energy to thermal energy
C
mechanical energy to thermal energy
D
thermal energy to mechanical energy
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The Muscular System
Mrs. Keadle JH Science
Sharon is working on a report on
smooth muscles. Smooth muscles
control involuntary body
movements. Sharon drew this
image to show a magnified view of a
smooth muscle.
17
18
Which of the following body
structures is made up of smooth
muscle?
F
lips
G
foot
H upper arm
J
19
blood vessels
Skeletal muscles are attached to
bones to allow movement. Skeletal
muscles have a striped appearance.
This image shows a magnified view
of skeletal muscle.
Which of the following is true of
skeletal muscles?
A
Skeletal muscles are an example
of cardiac muscle.
B
Skeletal muscles are an example
of smooth muscle.
C
Skeletal muscles are an example
of voluntary muscle.
D
Skeletal muscles are an example
of involuntary muscle.
The muscular system is made up of muscle tissue and accounts for almost
half of a person’s body. What is muscle tissue?
F
tissue that is part of the skeletal system
G
tissue that is made up mainly of cartilage
H
tissue that is produced in the spongy part of the bones
J
tissue that contracts and relaxes to produce movement.
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The Muscular System
Mrs. Keadle JH Science
20. How do the bicep and tricep change as you bend and straighten your
arm?
21. How do the skeletal muscles cause bones to move?
22. When you take a walk, several of your body systems are working
together to help you move. Name TWO systems that work together to
help people move and explain the role of each system?
Muscle tissues can be classified into three main type; skeletal, cardiac
and smooth.
23. Which type of muscle tissue is found in the blood vessels, intestines and
stomach?
24. Which of the three muscle tissues is found in the voluntary muscles of
the body?
25. Why is it important that cardiac muscle does not get tired?
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The Muscular System