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Muscular System

Total questions: 20

Worksheet time: 9mins

Name
Class
Date
1.

How many types of muscles are there?

a)

2

b)

4

c)

3

d)

1

2.

What are the characteristics of the cardiac muscle?

a)

Involunatary

b)

Found in the heart

c)

Banded Appearance

d)

Dense connective tissue packaging

3.

Smooth Muscle is found in the?

a)

Heart

b)

Facial

c)

Organs

d)

Legs

4.

The connective tissue sheath that surrounds a muscle fasciculus is the

a)

epimysium

b)

endomysium

c)

perimysium

5.

given the following events:

1.acetycholine broken down

2.acetylcholine moves across the synaptic cleft

3.action potential reaches the terminal branch (presynaptic terminal)

4.acetylcholine combines with a receptor molecule on a skeletal muscle (postsynaptic membrane)

5.action potential produced in skeletal muscle cell


Choose the arrangement that lists the events in the order the occur at a neuromuscular injunction

a)

2,3,4,1,5

b)

3,2,4,5,1

c)

3,4,2,1,3

d)

4,5,2,1,3

6.

Muscles that oppose one another are

a)

synergist

b)

hateful

c)

prime movers

d)

antagonists

7.
Muscles are composed of which of the following?
a)
Lipids
b)
Protiens
c)
Carbohydrates
d)
Fats
8.
Which of the following is defined as the ability of an object to quickly return to the original shape and size?
a)
Elasticity
b)
Excitibility
c)
Flexibility
d)
Extensibility
9.
Which of the following is defined as the ability to change or be changed according to circumstances?
a)
Elasticity
b)
Excitability
c)
Flexibility
d)
Extensibility
10.
Which of the following is NOT a type of muscle?
a)
Rough
b)
Smooth
c)
Cardiac
d)
Skeletal
11.
Skeletal muscles are responsible for which of the following?
a)
Movement of the body
b)
Movement of the heart
c)
Movement of the ligaments 
d)
Movement of the extremities
12.
Which of the following describes the sarcomere? 
a)
The basic unit of muscle’s cross-striated myofibril
b)
. A protein band which defines the boundary between one sarcomere 
c)
 Various muscle proteins 
d)
Contains the protein, actin
13.
Which of the following describes muscle bundles? 
a)
Long, multi-nucleated, thread-like cells
b)
Set of muscle fibers grouped together 
c)
Considered to the cell of the muscle 
d)
Organelles which are unique to muscle tissue
14.
Skeletal muscles are attached to which of the following? 
a)
Bones and ligaments 
b)
Ligaments and tendons
c)
Tendons and bones
d)
Bones and fat 
15.

Muscles are needed for what?

a)

movement

b)

decoration

c)

pump blood

d)

no one knows

16.

Smooth muscle is located where?

a)

heart

b)

bones

c)

toes

d)

internal organs

17.

The nerve releases a chemical called a

a)

neurotransmitter

b)

neuron

c)

myofibril

d)

cell

18.
What are the two classifications of muscles in your body?
a)
Voluntary and Controllable
b)
Flabby and Strong
c)
Involuntary and Voluntary
d)
Hard and soft
19.
How do pairs of skeletal muscles work together?
a)
while one contracts, the other returns to original length
b)
both muscles contract at the same time
c)
both muscles relax at the same time
d)
1 muscle pulls on the bone and the other pulls on the first muscle
20.
Which 2 systems work together to help a person stand erect?
a)
skeletal / muscular
b)
skeletal / digetive
c)
skeletal / respiratory
d)
skeletal / cardiovascular