Blood and circulatory system.

P.46

1. Blood and circulatory system

 The composition of blood

1. What is blood?What types of blood cells are there?

2. What is plasma?

3. What percentage of the blood does it represent?

Blood vessels

4. Copy the drawing of the structure of blood vessels.

5. Which blood vessels take blood from the organs to the heart? And from the heart to the organs?

Blood groups

Dive into the history of the life-saving procedure of blood transfusions and how it has evolved since the 17th century:

6. What is the difference between A and B blood types?

   And  positive Rh  and  negative Rh?

   Explain the reasons why the  AB+ type  is called as universal recipient. 

   Can you say which blood type is considered as universal donor?

The heart and blood circulation

7. What is the heart?

8. How many chambers does the heart have?

9. How are they connected?

10. What is systole? and diastole?

11. Why is the left ventricle wall thicker than the right ventricle wall?

12. What is pulmonary circulation?

13. What is systemic circulation?

14. So, as blood flows through two different yet connected circuits, known as........   ...............