Inspiration: breathing in
20% oxygen + 0.4% carbon dioxide
Exhalation: breathing out
16% oxygen + 4% carbon dioxide
What makes up the respiratory system
Lungs, Nose, Mouth, throat, voice box, windpipe, lungs and blood vessels
Why do we need our respiratory system
To get oxygen into the working muscles.
To remove carbon dioxide from the body.
What are the short term effects on the respiratory system
You start breathing deeper
And gasping for air
Vital capacity
The greatest amount of air that can be passed into and put of the lungs by the most forceful inspiration and expiration
Tidal volume
Is the amount of air inspired and expired with each breath
Nose/mouth
Air enters the body
Larynx
Air passes through voice box
Trachea
The windpipe that carries air into chest
Bronchi
Two main tubes, one leading to each lung
Bronchioles
Smaller branching tubes inside lungs
Alveoli
Tiny air sacs where gas exchange happens
Capillaries
Surround the aveoli
Transported blood
Oxygen is carried to blood
What happens at gas exchange in the lungs
Haemoglobin inside red blood cells binds to oxygen, which diffuses into the blood so it can be transported around the body to be deposited in the living cells. A series of chemical reactions take place which combines glucose with oxygen to release energy along with carbon dioxide.
Oxygen debt
The amount of oxygen needed at the end of a physical activity to break down any lactic acid.
VO2 max
The volume of oxygen an athlete can consume while excercising at maximum capacity.
