Vocab
The actual scientific name for the heart and blood vessels in the body...
Circulatory System
These things are located in the heart and make sure the blood doesn't flow backwards...
Heart Valves
These are small, thin passageways inside the lungs.
Bronchial Tubes
The muscle underneath the lungs that helps us to breathe is called...
Diaphragm
The smallest living thing in the body is called...
Cells
The air pipe that connects the mouth to the lungs...
Trachea
How much oxygen does the blood have when it first enters the heart?
Very little oxygen (De-oxygenated)
Why is mucus important for the nose and lungs?
It traps pollen, mold, and other things that Irritate the lungs.
These look like grape like sacks and are found at the end of the Bronchial tubes in the lungs...
Aveoli
Which tubes lead blood INTO the heart?
Veins
The smallest blood vessels in the human body are called...
The aveoli exchange TWO things between the lungs and the heart...What are they?
1. Carbon Dioxide
2. Oxygen
Which Tubes lead blood AWAY from the heart
Arteries