Q1 9 SCI (KEY-TERMS L1 RESPIRATORY SYSTEM)

is the only visible part of the respiratory system. 

also known as external nares or the opening in the nose which air enters.

the internal part of the nose.

Nasal Cavity is divided into partition called ?

 5 inch muscular passage for food and air.

Commonly called as throat.

 a region in pharynx which receives the air from nasal cavity.

a region in pharynx which serves as the passageway for food and air 

leads to another respiratory tract.

which are clusters of tissue that protect the body from foreign invaders