Respiratory System Flashcards
1
Q
What is the nasal cavities job of the respiratory system?
A
- warms or cools air that passes through
- supplies moisture to incoming air
- air is filtered by hairs and mucus
2
Q
What is the Pharynx?
A
- Connects the nasal cavity to the larynx and esophagus
- common passageway for both digestive and respiratory tract
3
Q
What is the larynx?
A
Aids in talking
4
Q
What is the trachea?
A
- Outer layer is made up of c shaped rings
- traps foreign particles by hair and mucus
5
Q
What are the bronchi?
A
- Tubes that branch from the trachea
- have cartilage to prevent them from collapsing
- provides moisture to the air
6
Q
What are the bronchioles?
A
Branches that lead from the bronchi to the alveoli
- composed of muscle
- can dilate and constrict
7
Q
Alveolar sacs
A
necessary for gas and fluid exchange
- gases must dissolve in water before they are able to diffuse
8
Q
lungs
A
Composed of spongy material
- R lung has 3 lobes, L lung has 2
- covered by the visceral pleura
9
Q
Mechanics of exhalation
A
Intercostal muscles move down and inwards and diaphragm relaxes and moves up to normal position
10
Q
Mechanics of inhalation
A
Intercostal muscles move up and outwards and diaphragm contracts to pull downwards
