The air we exhale is warm.
True
False
Always inhale through your mouth.
The doctor uses a stethoscope to listen to our heartbeat.
The air from our nose goes into the blood.
Our ribcage protects the lungs.
Oxygen is needed for burning.
Which of the following gases is inhaled by us?
Nitrogen
Oxygen
Carbon dioxide
Which of the following gases is exhaled by us?
Which of the following is the muscular organ that pumps blood throughout the body?
Lung
Heart
Diaphragm
What is the normal temperature of a human body?
99.7°F
96.7°F
98.6°F
Which of the following is the structure of curved bones that surrounds and protects the chest?
Ribcage
Lungs
oxygen
carbon dioxide
stomach
chest
Water
Blood
body
head
60
72
