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Questions and Answers
What characteristic distinguishes voluntary muscles from involuntary muscles?
Which of the following muscles is classified as involuntary?
What is a common cause of muscle strain?
Which type of muscle is primarily responsible for pumping blood throughout the body?
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Which injury results from the muscle contracting involuntarily and painfully?
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Study Notes
Muscle Types
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Voluntary muscles:
- Can be controlled by conscious effort.
- Examples: muscles in arms, legs, back, chest, and face.
-
Involuntary muscles:
- Cannot be controlled consciously.
- Examples: smooth muscles in internal organs like the stomach and intestines, and cardiac muscles in the heart.
-
Three Types of Muscles:
-
Skeletal Muscles:
- Voluntary
- Attached to bones.
-
Smooth Muscles:
- Involuntary
- Found in the walls of internal organs.
- Involved in continuous movement not controlled consciously.
-
Cardiac Muscles:
- Involuntary.
- Found primarily in the heart walls.
- Responsible for pumping blood throughout the body.
-
Skeletal Muscles:
Muscle Disorders and Injuries
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Strain:
- Occurs when a muscle is stretched excessively, causing tears.
- Also known as a pulled muscle.
- Painful injury caused by accidents, overuse, or improper muscle use.
-
Muscle cramp:
- Involuntary and painful muscle contraction that doesn't relax.
-
Muscle bruise:
- Results from a muscle impact with a hard object.
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Description
This quiz covers the types of muscles, including voluntary and involuntary muscles, along with the classification of skeletal, smooth, and cardiac muscles. Additionally, it examines common muscle disorders and injuries such as strains and their causes. Test your knowledge on muscle anatomy and related conditions!
