The Respiratory system Flashcards
alveolus
A tiny air sac in a lung where gas exchange occurs
breathing
The process used by animals to exchange gases with the atmosphere
bronchiole
A tube that carries air through a lung
Tenticley things in lungs
cellular
respiration
The process used by all living cells to release energy
diaphragm
A large sheet of muscle that contracts to draw gas into the lungs
diffusion
The movement of molecules from an area of high to low concentration
gas exchange
The movement of oxygen into the blood and carbon dioxide out of it
intercostal muscle
A thin band of muscle between two ribs that helps with breathing
larynx
The upper part of the trachea, containing the vocal cords
lung
An organ where gas exchange occurs between air and blood
pharynx
The common pathway for air and food
respiratory system
takes up oxygen from the air we breathe and expels the unwanted carbon dioxide
trachea
The main airway between the throat and the lungs
