(Involuntary) - These work without concious control. They are smooth as they have no stripes when under a microscope. Found in the digestive system (they aid blood vessels).
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What are the skeletal muscles? (Tendon - Bone)
Used during exercise. Striped under a microscope. Voluntary muscles, used under concious control. They are attatched to our bones by tendons. Over 600 in the body - need to know 11.
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What are the cardiac muscles?
This is the muscle that forms your heart. It works without concious control. It is the tireless worker. Each contraction of the muscle is a heart beat.
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Extension
Increasing the angle at a joint.
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Flexion
Decreasing of the angle at a joint.
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Rotation
A circular movement (swimming).
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Abduction
Taking a limb away from the midpoint of the body.
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Adduction
Moving a limb towards the midpoint of the body.
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Isotonic contractions
With movement - e.g. running
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Isometric contractions
Your muscles contract without movement ( a rugby scrum or a handstand in gymnastics).
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Immediate effect of exercise- Temperature
Rises in your muscles, therefore reduces the risk of injury (warming up) - Muscles require more energy to work therefore your CV and respiratory system adapt. More 02 is required and more C02 is given off.
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Temperature (continued)
If you cannot meee the oxygen demand, your muscles will respire anaerobically and produce lactic acid. This causes them to feel tired - this is muscle fatigue.
Increased tolerance to lactic acid. Muscle fibers get stronger and thicker - muscular hypertrophy. This causes stronger contractions therefore muscle mass increases. Tolerance to lactic acid build up in your muscle also increases.
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Injuries -
A strain (a pull) or tear (muscle rips or tears) - Reversibility would then take place. Rest, overnight your muscles repair, and allows for adaptations to take place. ( Protein allows muscles to repair)
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Other cards in this set
Card 2
Front
(Involuntary) - These work without concious control. They are smooth as they have no stripes when under a microscope. Found in the digestive system (they aid blood vessels).
Back
What are the smooth muscles?
Card 3
Front
Used during exercise. Striped under a microscope. Voluntary muscles, used under concious control. They are attatched to our bones by tendons. Over 600 in the body - need to know 11.
Back
Card 4
Front
This is the muscle that forms your heart. It works without concious control. It is the tireless worker. Each contraction of the muscle is a heart beat.
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