Muscles
- Created by: Charlotteeliseharrison
- Created on: 29-04-17 16:32
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- Muscles
- Muscle Contractions
- Sliding filament theory
- Types of Muscles
- Skeletal
- Voluntary control
- Via motor neurone
- Somatic nervous system
- Via motor neurone
- Voluntary control
- Cardiac
- Not voluntary
- Smooth
- Inside most organs
- The gut
- The arties
- The uterus
- form rings so are able to contract without the skeleton
- Not Voluntary
- Autonomic nervous system
- Hormones
- Inside most organs
- Skeletal
- Structure
- Each muscle fibre is a single cell
- Lots of mitochondria
- ATP
- Sarcosplasm
- Lots of mitochondria
- Actin
- Myosin
- Thicker and longer
- Each muscle fibre is a single cell
- Types of Muscle Fibres
- Fast Twitch
- Contract fast
- Intense
- Anaerobic respiration
- White
- Don't store oxygen
- Phosphocreatine
- Rapidly generate ATP from ADP
- Slow Twitch
- Contrast slow
- Endurance
- Aerobic respiration
- Red
- Rich in myoglobin
- Fast Twitch
- Speed of Impulses
- the diameter of the axon
- Greater the diameter the faster the conduction
- The myelin sheath
- Impulse jumps from node to node
- Saltatory conduction
- Faster in the myelinated one
- Impulse jumps from node to node
- temperature
- Affects the rate of diffision
- Affects respiration rate
- ATP
- Strength and speed of muscle contractions
- All or Nothing principle
- Any stimulus above the threshold value will create an action potential
- Refectory period
- Time when no action potential can be created
- the diameter of the axon
- Energy supply
- Movement of myosin heads
- Reabsorption of calcium ions by active transport
- Phosphocreatine
- aerobic and anaerobic respiration
- Muscle Contractions
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