The Muscular System
- Created by: oliviagilchrist
- Created on: 17-02-14 12:25
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- The Muscular System
- Functions
- Protection
- Protect and keep our abdominal organs in place.
- Shape
- Give us our individual shape.
- Movement
- Enable us to move our body parts.
- Circulation
- Helps the circulation of blood.
- Warmth
- Generate body heat when they contract.
- Posture
- Maintain a good posture.
- Protection
- Types
- Cardiac
- Only found in the heart.
- Contracts and relaxes continuously.
- Involuntary Muscle. (Without conscious consent)
- Adapts to training to improve cardiovascular fitness.
- Smooth
- Around Organs e.g. Intestines and blood vessels.
- Involuntary Muscles.
- Provide the nutrients + remove waste products.
- Skeletal
- Are attached to the skeleton by tendons.
- Voluntary Muscles (Are under our control).
- Make our bodies move.
- Will adapt with training to improve performance.
- Cardiac
- Movers
- Flexors
- The muscles that BEND a limb.
- Extensors.
- The muscles that STRAIGHTEN a limb.
- Adductors
- The muscles that move a limb TOWARDS the body.
- Abductors
- The muscles that move a limb AWAY from the body.
- Flexors
- Muscle Contractions
- Isotonic
- Force produced with movement.
- Eccentric
- Muscle lengthens. Braking Action, (Arm goes down)
- Concentric
- Muscle shortens. (Arm goes up)
- Eccentric
- Force produced with movement.
- Isometric
- Force produced without movement.
- E.g. Tug of War/Rugby Scrum.
- Force produced without movement.
- Isotonic
- Functions
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