Three Types of Muscle

Quiz on the Three Types of Muscles

Spread 2.4.8 in the OCR Biology A2 Student Text Book (pages 234 to 235)

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Which two proteins make up the filaments in muscles?
Myosin and Actin
1 of 15
Involuntary Muscle is also known as...
Smooth
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Voluntary Muscle is NOT also known as
Smooth
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What is a sarcomere?
The smallest contractile unit of a muscle
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Which muscle cell is multinucleated?
Skeletal
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What does 'involuntary muscle' mean?
A muscle that is not under concious (voluntary) control.
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When looking at a microscope slide, cardiac muscle looks to be...
Striated, branched, in rows and with dark areas known intercalated discs.
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Muscle cells do NOT contain:
Chloroplasts
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What is peristalis?
Muscle contractions that moves food along digestive tract.
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What is the action of smooth muscle in the iris?
Controlling the intensity of light entering the eye
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What does 'myogenic' mean?
Able to stimulate a contractions without a nerve impulse
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'____________' increases the heart's rate of contraction.
Sympathetic stimulation
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The sinoatrial node is made of '___________'
specialised excitatory and conductive fibres
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What is an 'intercalated disc'?
Cell membranes in cardiac muscle.
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What is the name of the cell surface membrane that surrounds muscle fibres?
Sarcolemma
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Other cards in this set

Card 2

Front

Involuntary Muscle is also known as...

Back

Smooth

Card 3

Front

Voluntary Muscle is NOT also known as

Back

Preview of the front of card 3

Card 4

Front

What is a sarcomere?

Back

Preview of the front of card 4

Card 5

Front

Which muscle cell is multinucleated?

Back

Preview of the front of card 5
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