2TTO u3 b2: circulation

• Biologie
• Middelbare school
• vwo
• Leerjaar 2

u3 b2: circulation

Goals:

-I can name all the solid parts of blood.

-I can describe the reason for 2 distinct types of circulation in the human body.

-I can state the function of the two types of circulation in the human body.

Discuss homework b1

-ex 1, 3, 5, 6

b2: circulation

-Systemic circulation:

-brings oxygen and nutrients to body cells.

-Takes away waste products from body cells.

-Oxygen-rich blood is bright red, flows through left side.

b2: circulation

-Pulmonary circulation:

-Takes in oxygen from the lungs.

-Releases CO2 to lungs to breathe out.

-Oxygen-poor blood is dark red, flows through the right side of the heart.

b2: circulation

Humans have a double circulatory system: blood flows through heart 2 per lap/circuit.

Which colour is blood in images of the heart.

1. left is dark, right is light
2. left is light, right is dark
3. Left is red, right is blue
4. Right is red, left is blue

Show me an example of an animal with a single circulatory system.

What is the main difference between a single and a double circulatory system?

A double circulatory system is more efficient for taking in oxygen. Explain why only birds and mammals have this system.

Homework

unit 3, basics 2: 

Do ex. 8+9