1.the nose is the outer part of the upper respiratory tract and has two opening called______.
2.Larynx is also called________because it functions for the production of sound.
3. ______is connected to the bottom part of the larynx.
4.The_________and the_______filter out dust and dirt from the air that enters the nose.
5.Lungs lie in the chest cavity and are protected by the sorrounding _______.
6.When we inhale,the diaphrapgm _______and pulls downward.when exhale,it________to force air out of the lungs.
7.The hollow tube that connects the larynx to the brochi is called.
8.The__________are the grape like structures at the end of the bronchiles



voice box
nostrils
rib cage
trachea
alveoli
pleura
mucus
expands
contracts
trachea
pharynx
celia​