TEST 3 Flashcards
(14 cards)
To continue functioning properly, the cells of the body must continually obtain new molecules of ___ and must continually remove the molecules of ___ they generate as waste?
O2 and Co2
The new O2 brought into the body to be delivered to the cells, and the CO2 that is eliminated from the body after being dumped by cells into the blood, get into and out of the body, respectively, at the _____?
Alveoli of the lungs
Where does oxygen get into and out of the body?
The alveoli
What are the 6 major function of the respiratory system?
- Providing an area for gas exchange between air and circulating blood.
- Moving air to and from exchange surfaces.
- Protecting exchange surfaces from environmental fluctuations.
- Defending against air-borne pathogens.
- Producing sound.
- Facilitating the stimulation of olfactory receptors.
The organs of the respiratory tract can be divided into what groups?
upper respiratory tract and lower respiratory tract
The upper respiratory tract is the _____ of the respiratory system?
conducting system
The upper respiratory tract preps the incoming air by:
- Filtering
- Warming
- Humidifying
Which part of the respiratory tract organs bring the air into the body and direct it towards the trachea, which will lead to the alveoli of the lungs?
upper respiratory tract
What is the conducting system of respiration?
The upper respiratory tract
When the upper respiratory tract preps the incoming air by filtering, warming, humidifying what does it do to the alveoli?
protects it
Where does gas exchange happen?
alveoli
What part of the throat is shared by the digestive and respiratory tracts?
pharynx
What part of the throat is where the digestive and respiratory tracts split into separate pathways?
larynx
What part of the throat is where the path that diverts int the top of the trachea and houses the voice box?
larynx
