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19 Cards in this Set
- Front
- Back
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What are the three types of muscles? |
Smooth, cardiac and skeletal |
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Describe what smooth muscles are |
Involuntary muscles e.g. our eyes. They’re long and thin and attached to the bone |
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Describe a cardiac muscle |
Involuntary- muscle of the heart |
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Describe what a skeletal muscle is |
All muscles in the body that contract to help us move |
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Define concentric |
Muscle fibres shorten producing force enabling us to move |
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Define eccentric |
Muscle lengthens under tension e.g. bottom of a bicep curl |
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Define isometric |
Very little muscle length change if at all e.g. prone hold |
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Define isotonic |
Blanket term for concentric and eccentric muscle contractions |
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What is a fusiform muscle? |
It’s fibres are arranged one on top of each other running longitudinally along the muscle belly. Could also be parallel. Great range of motion, higher contraction and greater speed of movement |
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Pennate muscles |
Muscle fibres that are arranged diagonally. Forceful contractions but slow. E.g. deltoid and quads |
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Pennate muscles |
Muscle fibres that are arranged diagonally. Forceful contractions but slow. E.g. deltoid and quads |
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What are the 3 x muscle fibre types? What twitches are they? |
Type 1 (slow) 2a (fast) and 2b (fast) |
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Pennate muscles |
Muscle fibres that are arranged diagonally. Forceful contractions but slow. E.g. deltoid and quads |
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What are the 3 x muscle fibre types? What twitches are they? |
Type 1 (slow) 2a (fast) and 2b (fast) |
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Describe the 3 x muscle fibre types |
Type 1: slow muscle fibre - good for endurance events e.g. marathon Type 2a: Good oxidative capacity, good sustained powerful movements - good for sports
2b: Good glycolic capacity, good for short bursts e.g. clean and jerk |
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Pennate muscles |
Muscle fibres that are arranged diagonally. Forceful contractions but slow. E.g. deltoid and quads |
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What are the 3 x muscle fibre types? What twitches are they? |
Type 1 (slow) 2a (fast) and 2b (fast) |
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Describe the 3 x muscle fibre types |
Type 1: slow muscle fibre - good for endurance events e.g. marathon Type 2a: Good oxidative capacity, good sustained powerful movements - good for sports
2b: Good glycolic capacity, good for short bursts e.g. clean and jerk |
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What is the sliding filament theory? |
What happens in the sacromere when our muscles contract. Actin and myosin filaments slide past each other. The myosin heads grab the actin and pull them closer together to get the muscle to contract |
