Respiratory system Flashcards
Vital capacity
The maximum amount of air that can be forcibly inspired and expired
Residual volume
The amount of air that remains in a persons lungs after fully exhaling
Inspiratory reserve volume
The maximal amount of additional air that can be drawn into the lungs by determined effort after normal inspiration
Tidal volume
The amount of air inspired and expired with each normal breath
Expiratory reserve volume
The additional amount of air that can be expired from the lungs by determined effort after normal expiration
Respiration
The movement of air from outside the body into the cells within tissues
Diaphragm
A dome shaped muscle that separates the chest from the rest of the body
Trachea
The tube that takes air into the body
Bronchus
Tube along which air passes from the trachea to the lungs
Bronchioles
Smaller branches coming off the bronchi
Alveoli
Tiny sacs at the end of the bronchioles where gas exchange takes lace
Intercostal muscles
Internal muscles that run between the ribs and help the chest to expand and shrink during breathing
What is the oxygen in the alveoli diffused into and where is it transported to
It is diffused into the blood stream and transported to the working muscles
What is the CO2 from the bloodstream diffused into and what does it then do
It is diffused into the alveoli in order to be exhaled by the lungs
What is there a high concentration of in the alveoli after breathing in
Oxygen