circulatory system unit two

CirculationCirculation

and the and the

circulatory circulatory

systemsystem

VOCABULARY

Blood RED BLOOD CELLS

WHITE BLOOD CELLS PLATELETS

VOCABULARY

ARTERYVEINS

VOCABULARY

CAPILLARIESHEART

VOCABULARY

CIRCULATION AND THE CIRCULATORY SYSTEM

THE CIRCULATORY

SYSTEM IS MADE UP OF BLOOD,

BLOOD VESSELS

AND THE HEART.

BLOOD

CIRCULATES

THROUGH

THESE TUBES

(VEINS AND ARTERIES)

What can we find inside

the arteries?We can find

white blood cells

We can find red blood cells

We can findplatelets

Capillariesconnectarteries

and veins.

What do capillaries do?

ARTERIESTAKE THE

BLOOD FROM

THE HEARTTO THE REST

OF THE BODY.ARTERIES

What do arteries do?

VEINS

VEINSTAKE

THE BLOODFROM

THE RESTOF THE BODYTO THE HEART

What do veins do?

Funtions of the circulatory systemFuntions of the circulatory system

The circulatory system transports two types of substances:

Nutrients Oxygen

The circulatory system takes the nutrients from the process ofdigestion to all the parts in your body.

The circularoty system picks up carbon dioxide and transports it to the lungs where they expel it from the body.

The circularoty system also picks up waste substances that the excretory system needs to eliminate.

Kidney

http://www.youtube.com/watch?v=Ukro0hZZTEg

The heart

Your heart is the size of your fist and it is between your tow lungs.

LungsHeart

When your heart relaxes, it fills with the blood coming from your veins.

When your heart contracts , it pushes the boodthourgh your arteries to all the parts of your body.

http://www.youtube.com/watch?v=D3ZDJgFDdk0

The sound of the rhythm of your heart relaxing and contractingis your heartbeat.

heartbeat