1
Waste product of respiration.
2
Small muscles of breathing found in between each rib.
3
Breathing in.
4
Air travels through the nostrils into this chamber to be warmed and humidified.
5
The smallest of respiratory branches.
6
Breathing out.
7
The tube at the back of the throat shared by the respiratory and digestive systems.
8
Clusters of tiny, thin walled air sacs were gaseous exchange occurs.
9
The trachea divides into left and right primary _______.
10
Windpipe. Has "C shaped" cartilage to help keep it open.
11
Each lung is enclosed in a double-walled sac called _________.
12
Dome shaped muscle involved in breathing.
13
This element is the reason we breath.
14
Each lung has separate sections called ______.
