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biology (respiration, energy and exercise )
18 cards·by 23aamo
how can you tell how many times you heart beats in one minute
your pulse
what are the impacts of exercise
causes increase in breathing rate, tidal volume, increases heart rate
what problems can smoking cause on the heart
angina (severe chest pain) heart attack
what is so bad about carbon Monoxide
it is smelliness, colourless and kills in seconds
what is nicotine
an addictive chemical
name one bad thing about smoking in the longterm
smokers cough
what are the three most harmfull things in cigaretts
tar, carbon monoxide, nicotine
what is the first step when inhaling
the intercostal muscles contract and raise the ribs upwards and outwards
what is the second step when inhaling
the diaphragm muscle contracts and fattens
what is the third step when inhaling
the volume of the thorax increases
what is the fourth step when inhaling
pressure in the chest cavity drops below atmospheric pressure
what is the 5th step when inhaling
air moves into the lungs
what happens to the alveoli when you smoke
emphysema,causing the lungs to burst, the lungs have less surface area, so less surface area
for gas exchange
what is the first step when exhaling
intercostal muscles relax and the ribs move downwards and inwards
what is the second step when exhaling
the diaphragm muscle relaxes and becomes dome shaped
what is the third shape when exhaling
the volume of the thorax decreases
what is the fourth step of exhaling
pressure in the lungs rises above atmospheric pressure
what is the fith step when exhaling
air moves out of the lungs