The main organ of the circulatory system that is a powerful muscle that circulates blood throughout the body.
The heart
The main organs of the respiratory system that absorb oxygen from the air into the blood and release carbon dioxide from the blood into the air.
The lungs
Liquid tissue that carries substances throughout the body.
Blood
The body system that brings oxygen into the body and exchanges it with carbon dioxide.
Respiratory system
Every cell in your body needs continual supply of what...
oxygen and food
The continuous flow of blood withing the body.
Circulation
The voice box
The Larynx
Blood cells that absorb oxygen in the lungs and carry it throughout the body.
Red Blood Cells
The process of inhaling and exhaling.
Respiration
The three main parts of the circulatory system
blood, heart, blood vessels
Blood vessel that returns blood to the heart.
Vein
Windpipe
Trachea
Blood cells that defend the body by fighting disease and infection.
White blood cells
The main muscle of breathing that moves down to inhale and up to inhale.
Diaphragm
A straw colored part of blood that makes up of 50% of your blood.
Plasma
Blood vessel that takes blood away from the heart.
Artery
Throat
Pharynx
Part of the blood that covers open wounds and enables blood to clot.
Platelets
The smallest air tubes in the lungs.
Bronchioles
The air tubes that allow air to enter into the lungs
Bronchi
The smallest type of blood vessel that links the other blood vessels together.
Capillary
The tiny air sacs in the lungs that has thin walls to allow the exchange of gases between the air and blood.
Alveoli
Special protein that red blood cells use to carry oxygen that contains the mineral iron.
Hemoglobin
A doctor that specializes in disorders of the respiratory system.
Pulmonologist
If your body does not have enough oxygen, what does your brain tell to start working