Intro and stucture Flashcards
What are the THREE main purposes of the respiratory system?
- Bring in and deliver O2 to blood
2.getting rid of CO2 from blood
3.remain the acid-base balance in blood
Air enters nostrils and then passes through the…
Nasopharynx
Air enters through the mouth and than passes through the….
Pharnyx
After air travels through the nasopharnx/pharnx, it then travels to the….
Larynx
What is the larynx also known as?
the voice box
What are the two primary structures of the larynx?
Glottis and Epiglottis
Glottis:
combination of vocal folds/cords and the space inbetween these folds
Epiglottis:
Flap of elastic cartilage that guards the enterance of the glottis to prevent food/drink/objects from entering airway
After air travels down the larynx, it travels through the ______ down to the lungs
trachea
what are the membranous sacs surronded by the pulmonary cavity called?
Alveoli
What do Alveoli do?
Serve as sites for BOTH O2 and CO2 gas exchange with pulmonary circulation