Transport
Protein that carries oxygen
What is hemoglobin?
Process gases use to move across membranes
What is diffusion?
Air moves from ____ pressure to ____ pressure
What is high to low?
Number of alveoli in each lung
What is about 150 million?
Disease that causes inflamed bronchi and excess mucus
What is bronchitis?
Oxygen + hemoglobin
What is oxyhemoglobin?
Direction oxygen moves
Direction oxygen moves
What happens to chest cavity pressure during inhalation
What is it decreases?
Substance that prevents alveoli from collapsing
What is surfactant?
Disease where alveoli are damaged and lose surface area
What is emphysema?
% of CO₂ carried as bicarbonate
% of CO₂ carried as bicarbonate
Direction carbon dioxide moves
What is blood → alveoli?
What happens to chest cavity pressure during exhalation
What is it increases?
Thickness of alveoli walls
What is one cell thick
Condition where lungs fill with fluid and infection
What is pneumonia?
Where oxygen binds in blood
What are red blood cells?
3 things needed for efficient gas exchange
What are thin walls, moist surface, large surface area?
What happens to diaphragm during inhalation
What is it contracts and flattens?
Why alveoli have a large surface area
What is to increase gas exchange?
Genetic disorder causing thick sticky mucus
What is cystic fibrosis?
What CO does to hemoglobin
What is it binds stronger than oxygen and blocks it?
Structure that surrounds alveoli
what are capillaries?
Why air is forced out of lungs
What is lung pressure is higher than atmospheric pressure?
What surrounds alveoli to help gas exchange
What are capillaries?
Effect of smoking on cilia
What is they become damaged and less effective?