Respiratory System Flashcards
Function of Respiratory System
- Regulation of blood pH
- Voice production
- Olfaction
- Innate immunity
divided into upper and lower respiratory tract
Respiratory System
it includes the external nose, nasal cavity, pharynx and associated structure
Upper Respiratory tract
includes the larynx, trachea, bronchi, and lungs
Lower respiratory tract
consists of the external nose and the nasal cavity
nose
visible structure that forms a prominent structure of the face.
external nose
external openings of the nose
nares or nostrils
openings into the pharynx
choanae
extends from the nares to the choanae
nasal cavity
partition dividing the nasal cavity into right & left parts
nasal septum
occurs when the septum bulges to one side
deviated nasal septum
forms the floor of the nasal cavity, separating the nasal cavity from the oral cavity
hard palate
3 prominent bony ridges, are present on the lateral walls on each side of the nasal cavity
conchae
air-filled spaces within bone, open into the nasal cavity and are lined with a mucous membrane
paranasal sinuses
carry tears from the eyes, also open into the nasal cavity
nasolacrimal ducts
dislodges foreign substances from the nasal cavity
sneeze reflex
stimulated by exposure to bright light
photic sneeze reflex
common passageway for both the respiratory and the digestive systems
pharynx
superior part of the pharynx
nasopharynx
which is an incomplete muscle and connective tissue partition separating the nasopharynx from the oropharynx, forms the floor of the nasopharynx
soft palate