Respiratory System Flashcards
Where does the exchange of gas occur?
alveoli
What reduces friction between surfaces when breathing?
pleural cavity
ventilation
combination of muscle action and negative pressure
in ventilation, what does the diaphragm and intercostal muscle do?
increase volume of lungs and thoracic
decrease in pressure
tidal volume
amount of air breathed in and out of lungs
residual capacity
small amount of stale air after max capacity
What controls respiratory?
medulla oblongata
Total lung capacity
vital capacity and residual volume
vital capacity
amount of gas exhale after max inspiration
bronchiole
small passages that connect bronchi to alveoli
larynx
voice box
diaphragm
dome-shaped sheet of muscle and tendon that serves as the main muscle of respiration and plays a vital role in the breathing process
pleura
membrane around lungs, inside chest activity
surfactant
- a fluid secreted by alveoli
- reduces surface tension-prevent lung collapse
