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Muscular System Quiz

Total questions: 21

Worksheet time: 11mins

Name
Class
Date
1.

What is one of the functions of the muscular system?

a)

Producing heat

b)

Digesting food

c)

Regulating body temperature

d)

Filtering blood

2.

Which type of muscle is voluntarily controlled?

a)

Skeletal muscle

b)

Cardiac muscle

c)

Smooth muscle

d)

All of the above

3.

What is the characteristic of muscle tissue that allows it to respond to a stimulus?

a)

Contractility

b)

Elasticity

c)

Excitability

d)

Extensibility

4.

Which type of muscle is found in the walls of internal organs?

a)

None of the above

b)

Smooth muscle

c)

Cardiac muscle

d)

Skeletal muscle

5.

What is the role of ATP in muscle contractions?

a)

Regulates body temperature

b)

Transmits nerve impulses to muscle fibers

c)

Allows muscles to slide and prevent bursting

d)

Provides energy for muscle contractions

6.

What happens when muscles don't get enough ATP?

a)

They generate heat

b)

They become fatigued

c)

They become stronger

d)

They contract slowly

7.

How are muscles attached to bones?

a)

By cartilage

b)

By joints

c)

By tendons

d)

By ligaments

8.

What is the attachment of a muscle to a relatively fixed structure called?

a)

Tendon

b)

Insertion

c)

Origin

d)

Belly

9.

Which muscle is responsible for contracting during an action?

a)

All of the above

b)

Prime Mover

c)

Synergist

d)

Antagonist

10.

How many skeletal muscles are there in the body?

a)

Over 300

b)

Over 500

c)

Over 100

d)

Over 650

11.

Which of the following is NOT a major task of the muscular system?

a)

movement for the body

b)

heat production for the body

c)

maintaining posture

d)

making red blood cells

12.

Which of the following words means "the ability to recoil or bounce back to the original shape"?

a)

elasticity

b)

extensibility

c)

excitability

d)

contractibility

13.

Which type of muscle is involuntary and makes up many of your internal organs?

a)

skeletal

b)

smooth

c)

cardiac

d)

gastrointestinal

14.

Which membrane covers an individual muscle fiber?

a)

perimysium

b)

ectomysium

c)

endomysium

d)

epimysium

15.

What attaches muscle to bone?

a)

tendon

b)

ligament

c)

sliding filaments

d)

sarcomeres

16.

The _________ separate one sarcomere from another?

a)

synapses

b)

m-lines

c)

z-lines (z-discs)

d)

active sites

17.

Which type or types of muscle fibers is/are non-striated?

a)

skeletal

b)

cardiac

c)

smooth

d)

fasicular

18.

When myosin heads make a cross bridge and bend pulling the actin myofilament toward the center of the sarcomere, it is called the _____________.

a)

power stroke

b)

neuromuscular junction

c)

return stroke

d)

ATP contraction

19.

How much ATP is used in each myosin/actin cross-bridge cycle?

a)

4

b)

2

c)

3

d)

1

20.

What causes shortness of breath and muscle burning during a workout?

a)

lack of Ca+

b)

lack of 02

c)

lack of H20

d)

lack of acetylcholine

21.

Which muscle group is primarily responsible for the flexion of the forearm?

a)

The deltoids

b)

The biceps brachii

c)

The triceps brachii

d)

The quadriceps