Muscular System

Muscular System

University

16 Qs

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Muscular System

Muscular System

Assessment

Quiz

Science

University

Practice Problem

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Created by

Amy Gaines

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16 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following correctly describes skeletal muscle?

It is known as voluntary muscle.
It consists of short, branching fibers that fit together at intercalated discs.
It is found in the digestive tract, blood vessels, and airways.
It is called nonstriated because it does not appear striped when examined under a microscope.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are fascicles?

Muscle cells
Groups of muscle fibers
Types of tendons
Neurons that innervate muscles

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the name of the connective tissue that surrounds the muscle as a whole?

Endomysium
Epimysium
Perimysium
Periosteum

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are myofibrils?

Long protein bundles that fill the sarcoplasm and store glycogen
The membrane surrounding each muscle fiber
Tubules that allow electrical impulses to travel into the muscle cell
Another name for muscle cells

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the chief function of T tubules?

They store glycogen and oxygen
They store the calcium ions necessary for muscle contraction.
They contain myofilaments necessary for muscle contraction.
They allow electrical impulses to travel deep into the cell.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Muscle contraction requires both calcium and __________

Potassium

Sodium

ATP

Magnesium

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which factor influences the strength with which a muscle fiber contracts?

The amount of acetylcholine released into the synaptic cleft
The amount of calcium released
The length of the muscle fiber before the contraction begins
The size of the muscle fiber

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