sport science- respiratory system
- Created by: fernspencerr
- Created on: 10-12-15 12:15
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- sport science- respiratory system
- breath goes in through the mouth. this then goes through the pharynx then the larynx through the trachea to the bronchi to the bronchioles to the alveoli
- inspiration- rest
- contraction of external intercostal muscles and diaphragm
- inspiration- exercise
- contraction of external intercostal muscles, diaphragm, sternocleidomastoid, scaleness and pectorals minor
- expiration- rest
- relaxation of intercostal muscles and diaphragm
- expiration- exercise
- contraction of internal intercostal muscles and abdominals
- things that aid diffusion:
- blood cells come in slowly and single file at low pressure
- increases surface area, compressed against wall of capillaries
- small diffusion path way, more efficient
- millions of alveoli in the body
- high capillary density
- moist, film of moisture, transports easier when liquid not gas
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