Muscular System Flashcards

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1
Q

What are the tree type of muscle tissues

A

Skeletal, smooth and cardiac

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2
Q

What are the properties of smooth muscle

A

Involuntary
Functions under the control of the nervous system
Walls of the digestive system
Not Striated
Slow contractions

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3
Q

What are the properties of skeletal Muscles

A

Voluntary
Contract and pull on the bones to create movement
They are striated
Become fatigued

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4
Q

What are the properties of cardiac muscle

A

Involuntary
It contracts to create a heart beat
Striated
Doesn’t fatigue

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5
Q

What is the origin of a muscle

A

The end of the muscle attached to a fixed bone. The end which remains stationary.

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6
Q

What is the insertion of a muscle

A

The end of the muscle attached to the bone which moves. Normally crosses over a joint to allow movement when the muscle shortens

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7
Q

What is the synergist

A

The muscles that work together for the movement to be more efficient

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8
Q

What is the fixator

A

These stop any unnecessary movement by stabilising the joint

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9
Q

What is an isometric contraction

A

Where the muscle is engaged in a static position, this contraction leads to fatigue quickly.

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10
Q

What is an concentric contraction

A

Occurs in the agonist muscle if there is movement, the muscle insertion moves towards the origin

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11
Q

What is an eccentric contraction

A

Occurs in the antagonist muscle if there is movement ONLY if it is acting as a brake to help control the movement of the body, the muscle lengthens under tension

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12
Q

What are the properties of Type I Slow oxidative

A

Contract slowly with less force
Slow to fatigue
Suited to longer-duration aerobic activities
E.g. a marathon, long distance cycling

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13
Q

What are the properties of Type IIa Fast oxidative

A

Fast contracting, able to produce a large force
Resistant to fatigue
Suited to speed, power and strength activities
E.g. fast running events such as 400m

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14
Q
A
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