respiratory system
A system of organs functioning in respiration and in humans.
what is the respiratory system?
the system that circulates blood and lymph through the body.
what is the respiratory system?
The part projecting above the mouth on the face of a person.
What is the nose?
a hollow muscular organ that pumps the blood
what is the heart?
a colorless odorless gas produced by burning carbon and organic.
what is carbon dioxide?
the red liquid that circulates in the arteries and veins.
what is blood?
a large membranous tube reinforced by rings.
daily double
What is the trachea?
a tubular structure carrying blood through the tissues.
what is blood vessels?
a colorless reasive gas the chemical of atomic.
what is oxygen?
any of the muscular walled tubes forming port of the circulation system.
what is arteries?