Chapter 33 Flashcards
1
Q
Animals with gills
A
Aquatic animals, amphibians
2
Q
Animals with tracheae
A
Arthropod insects
3
Q
Animals with lungs
A
Amphibians, reptiles, mammals
4
Q
Pharynx
A
Where air enters from mouth or nose
5
Q
Larynx
A
Contains vocal cords
6
Q
Epiglottis
A
Sends food into esophagus, air into trachea
7
Q
Trachea
A
Sends air into lungs through branches
8
Q
Bronchi
A
Branches of trachea that lead into each lung
9
Q
Bronchioles
A
Smallest branches or bronchi in lungs
10
Q
Alveoli
A
Tiny air sacs in lungs where gas exchange occurs
11
Q
Inhalation
A
Chest cavity increased Diaphragm muscle contracts downwards Rib cage expands Lungs expand Air moves into lungs
12
Q
Exhalation
A
Chest cavity decreases Diaphragm muscles relax Rib cage contracts downwards Lungs compress Air moves out of lungs
13
Q
Functions of respiratory system
A
Gas exchange; organism releases carbon dioxide waste and takes in oxygen for cellular respiration
