CIRCULATORY SYSTEM

CIRCULATORY SYSTEM

START

Almudena Rivera GonzálezAriana Alconchel GilDiana García AlgarradaAgatha Outeiro Costa

INDEX :

1. The blood

1.1 Components (4)

1.2 Functions (5)

2. The heart

2.1 Structure (7)

2.2 Cardiac cycle (8)

3. Blood vessels and blood circuits (10)

4. Questions (12)

5. Video (17)

THE BLOOD

1.1 Blood components

1.1 Blood components

water

ions

proteins

nutrients

wastes

gases

plasm

white blood cells + platelets

red blood cells

Artery

Red blood cell

White blood cell

Platelet

1.2 Blood functions

nutrients

rest of the body

• Transport function

It transport O and nutrients to all the parts of the body.

• Defense function

It protect the body from infections with white blood cells.

• Regulation of the body temperature

It distribute the heat of the body from the hot zones to the cold ones.

THE Heart

2.1 Structure

2.2 Cardiac cycle

Blood vessels and blood circuits

3.1 Blood vessels

3.2 Blood circuits

Double: blood must pass throughtthe heart twice to complete it's journey. Complete: at no time does the oxygenated blood from the lungs mix with the deoxgynated blood from the rest of the body. Closed: neither the blood as a whole nor the cells that form it leaves the blood vessels.

4. Questions

1. What are the three functions of the blood?

Video

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