Soc17-Respiratory System Flashcards
How much Inhaled air do we breathe in?
You breathe 20% oxygen and 0.4% co2
How much Exhaled air do we breathe out?
You breathe out 16% oxygen and 4% C02
How many times (on average) do we respire while resting?
Breathe 21 times a minute taking in about half a litre of air with each breath
What is Vital Capacity?
The greatest amount of air that can be passed into the lung through forceful inhalation and exhalation
What is Tidal volume?
Amount of air inhaled and exhaled with each normal breath at rest or during exercise
What is Respiration?
Movement of air from outside the body into the body
What is the Diaphragm?
A dome-shaped muscle used in the process of exhalation & inhalation which contracts and relaxes
What is the Trachea?
A tube which takes air into the chest and out
What are the Bronchioles?
Smaller branches coming off the bronchi
What is the function of the Alveoli?
Tiny sacs at the end of the bronchioles where gas exchange takes place
What is the function of Haemoglobin?
Type of protein found in every red blood cell which attracts oxygen
What is Gaseous exchange?
The delivery of oxygen from the lungs to the bloodstream and the removal of C02 from the tissues
What is Oxygen Debt?
Amount of oxygen needed at the end of a physical activity to breakdown any lactic acids
What is Vo2 max?
The volume of oxygen an athlete can consume while exercising at maximum capacity
