Chapter 12 - Respiratory System - Respiratory Structures - Which Conduct air Flashcards
Air enters the body through the ______, through two openings called the ______ or _______.
Nose
nostrils or nares
Nasal cavities and paranasal sinuses – lined with a mucous membrane and fine hairs called ______.
Cilia
Cilia help…
filter out foreign bodies as well as to warm and moisten the air
Paranasal sinuses are…
hollow air-containing spaces within the skull.
What does the Paranasal sinuses produce?
They also produce mucus and the sinuses lighten the bones of the skull and help produce sound.
After passing through the nasal cavities the air reaches the…
pharynx
What is Pharynx?
Throat
How many divisions are there in the Pharynx?
What are they?
There are 3 divisions.
Nasopharynx, Oropharynx and Laryngopharynx
What is Nasopharynx?
contains the pharyngeal tonsils or adenoids, which are lymphatic tissue.
What is Oropharynx?
the palatine tonsils, two rounded masses of lymphatic tissue
What is Laryngopharynx?
which serves as the common passageway for food from the mouth and air form the nose. It then divides into the larynx and the esophagus.
What is the Larynx?
(voice box) contains the vocal cords
What is the Trachea?
(windpipe) where air passes through from the larynx
What is the Mediastinum?
What does this region do?
is the space in the center of the chest.
In this region the trachea branches off into two, the left and right bronchial tubes or bronchi (singular: bronchus) the bronchi branches into bronchioles
