Chapter 11 - Quiz #1 Flashcards
(22 cards)
Contains vocal cords.
Larynx
Contains millions of alveoli.
Lungs
Space where air is warmed, moistened, and filtered.
Nasal cavity
Large muscular sheet that contracts to increase thoracic pressure.
Diaphragm
Air first enters the body through here.
Nostrils
Cross-roads leading to esophagus or trachea.
Pharynx
Smaller, numerous branches leading to alveoli.
Bronchioles
Tube with cartilaginous rings that allow air to pass to the bronchus.
Trachea
A slit within the vocal cords.
Glottis
A branch off the trachea leading to the bronchioles.
Bronchus
Prevents food from entering the trachea.
Epiglottis
Nose provides for the entrance of air.
Passage
Special cells/structures present in nasal cavity that allow for air to be moistened, warmed, and filtered. (5)
Bony Ridges (increase surface area during inhalation, trap water droplets during exhalation), hair, cilia, mucus-producing cells, and rich supply of blood.
A person will breathe with their mouth. (3)
Oxygen supply is depleted, breathing rate increases, or nasal cavity is blocked (cold, congestion).
Air in trachea with “mouth breathing”. (3)
Air contains pollution and particles (as it has not been filtered in the nasal cavities by hair/cilia), is lower in temperature, and less moist.
Advantages of breathing via the nose. (2)
Increased filtration, greater chance to warm and moisten air (which improves diffusion rate).
Disadvantages of breathing via the nose.
Smaller intake of air.
Advantages of breathing via the mouth. (2)
Alternate pathway when nose breathing isn’t possible, and larger intakes of airwhen necessary.
Disadvantages of breathing via the mouth. (2)
Air will contain unwanted pollutions and particles, air will be cold and not moistened.
It is not possible to swallow and breathe simultaneously as:
The epiglottis closes over the trachea when you swallow.
Reflex triggered when there is an irritant that provides a means to remove the irritant.
Coughing
Air rushes out at a fast speed, quickly removing dust/debris that was slowly gathered by cilia and mucus.
Sneeze