Upper Respiratory System

primary passageway of air

• epiglottis

• pharynx

• nose

• larynx

has holes that are called nostrils or nares;

has silia and mucus

• pharynx

• nose

• epiglottis

• larnyx

has hair and mucus;

has three regions the vestibule, respiratory, and

olfactory regions

• nasal cavity

• nose

• larynx

• pharynx

first line of defense against foreign invaders;

lines with mucus; traps microorganisms and other debris in the

inhaled air

• respiratory

• vestibule

• olfactory

warms the inhaled air; moistens the air

to make it suitable for the body

• respiratory

• vestibule

• olfactory

composed of highly sensitive cells that send stimulus

to the brain; aid to determining the smell

• vestibule

• respiratory

• olfactory

It is also called the throat;

It is the common chamber of inhaled air and ingested food;

It has three parts.

• pharynx

• larnyx

• epiglottis

• nasal cavity

part of the pharynx that is located behind the nasal cavity

• nasopharynx

• oropharynx

• laryngopharynx

part of the pharynx that is located behind the oral cavity

• nasopharynx

• laryngopharynx

• oropharynx

part of the pharynx that is located in the larynx

• laryngopharynx

• nasopharynx

• oropharynx