the heart, blood vessel and circulation.pptx

about circulatory system and circulation of the blood.

1. Circulatory System The Body’s Transport System

2. Blood vessels Why are there different types of blood vessels? artery vein

3. The ARTERY thick muscle and elastic fibres Arteries carry blood away from the heart. It is a type of blood vessels that carry blood away from the heart. Arterioles are microscopic arteries.

4. The VEIN Veins carry blood towards from the heart. thin muscle and elastic fibres It carries blood towards the heart. Venules are the smallest veins.

5. The CAPILLARY Capillaries link Arteries with Veins the wall of a capillary is only one cell thick The exchange of materials between the blood and the body can only occur through capillaries.

6. Two Types of Circulation

7. Pulmonary Circulation Transport oxygen-depleted blood from the heart to the lungs. Its main function is to oxygenate the blood.

8. Systematic Circulation It carries oxygenated blood from the heart to the organs and tissues.

9. Parts of the Circulatory System Heart : your heart pumps blood through two major pathways. Blood Vessels Blood Pulmonary Circulation : the flow blood from the heart to the lungs and back to the heart. Systemic Circulation : is the flow of blood to all the body tissues except the lungs.

10. Critical Thinking Compare and contrast. What are systemic circulation and pulmonary circulation ? Which one carries newly oxygenated blood?

11. How important is blood flow in the human body?

12. INSTRUCTIONS: 1. Use arrows to direct the path of the blood flow from the heart to the other parts of the body. 2. Use the colors red and blue to indicate the deoxygenated and oxygenated blood.