Muscles Flashcards

1
Q

Muscle

A

Protect the body, give it shape, and allow for movement

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2
Q

Voluntary muscle (skeletal muscle)

A

Muscle that can be consciously controlled, form major muscle mass of the body, responsible for movement

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3
Q

Involuntary muscle (smooth muscle)

A

Muscle that responds automatically to brain signals but cannot be consciously controlled, found in the gastrointestinal system, lungs, blood vessels, and urinary system and controls the flow of materials through these structures. They respond to stimuli

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4
Q

Cardiac muscle

A

Specialized involuntary muscle found only in the heart. Extremely sensitive to decreased oxygen supply and can tolerate an interruption of its blood supply for only very short periods. Own blood supply through the coronary artery system

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5
Q

Automaticity

A

The ability of the heart to generate and conduct electrical impulses on its own. The heartbeat (contraction) is controlled by these electrical impulses

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