Pumping Blood
Respiratory Organs
Blood
Breathing
Random
100

The main organ of the circulatory system that is a powerful muscle that circulates blood throughout the body. 

The heart

100

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

100

Liquid tissue that carries substances throughout the body.

Blood

100

The body system that brings oxygen into the body and exchanges it with carbon dioxide.

Respiratory system

100

Every cell in your body needs continual supply of what...

oxygen and food

200

The continuous flow of blood withing the body.

Circulation

200

The voice box

The Larynx 

200

Blood cells that absorb oxygen in the lungs and carry it throughout the body.

Red Blood Cells

200

The process of inhaling and exhaling. 

Respiration

200

The three main parts of the circulatory system 

blood, heart, blood vessels

300

Blood vessel that returns blood to the heart.

Vein

300

Windpipe

Trachea

300

Blood cells that defend the body by fighting disease and infection. 

White blood cells

300

The main muscle of breathing that moves down to inhale and up to inhale. 

Diaphragm

300

A straw colored part of blood that makes up of 50% of your blood.

Plasma

400

Blood vessel that takes blood away from the heart. 

Artery

400

Throat 

Pharynx

400

Part of the blood that covers open wounds and enables blood to clot.

Platelets 

400

The smallest air tubes in the lungs. 

Bronchioles

400

The air tubes that allow air to enter into the lungs

Bronchi

500

The smallest type of blood vessel that links the other blood vessels together.

Capillary

500

The tiny air sacs in the lungs that has thin walls to allow the exchange of gases between the air and blood. 

Alveoli

500

Special protein that red blood cells use to carry oxygen that contains the mineral iron.

Hemoglobin

500

A doctor that specializes in disorders of the respiratory system.

Pulmonologist

500

If your body does not have enough oxygen, what does your brain tell to start working

Diaphragm 
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