Y2_T3_LSN_3.2

• Science
• Middelbare school
• havo, vwo
• Leerjaar 2

Get ready

• Your Macbook (join the LessonUp)
• Your notebook.
• Your textbook.
• Pen & highlighter

Topic 3

ORGANIZING THE WORLD

Plan for today

• Homework check
• Explanation T3.2 Organ systems
• Make homework

Homework check:

check your hw answers

use a different colour 

show your work when called

3.2 The Circulatory system

Learning goals

I can....

• describe the general components of a transport system and why they are important.
• describe the different types of blood vessels and their differences.
• list the parts of the heart.
• list the path of the blood flow through the heart.
• list the different components of blood and their functions.

Key words

• Aorta
  
• Valves
• Blood
• Plasma
• Red blood cells
• White blood cells
• Platelets

• Circulatory system
• Diffusion
• Arteries
• Capillaries
• Veins 
• Heart

Circulatory System

Provides your body with the transport of oxygen and nutrients around the body. 

Organs: heart, veins, arteries and capillaries 

The function of the Ciculatory system

The system responsible for transport through the body:

• oxygen
• carbon dioxide
• nutrients
• waste
• water
• hormones

How does this transport takes place?

By means of a pump (the heart).

This pump is connected to a large system of tubes that run all through the body. (bloodvessels).

The heart

The heart has four chambers: 

• 2 atria 
• 2 ventricles

The right side receives oxygen poor blood 

and pushes it to the lungs

The left side receives oxygen rich blood 

and pushes it to the body 

Valves prevent backflow

Circulatory system:

• Looks like a figure 8
• Is connected with respiration and gas exchange

Blood

Blood is made out of the following things:

• Plasma:                           Water, nutrients, hormones, waste products
• Red blood cells:          Hemoglobin for oxygen transport
• White blood cells:      Defense against pathogens
• Platelets:                        Helps to stop bleeding

Homework

• Study the glossary of 3.2
  
• Complete the exercises of 3.2 (p. 114-121)

Pay attention!!

Left is right and right is left!!

Answers

1. pulmonary artery
2. vena cava
3. right atrium
4. tricuspid valve
5. right ventricle
6. pulmonary valve
7. aorta
8. pulmonary vein
9. left atrium
10. aortic valve
11. mitral valve (bicuspid)
12. left ventricle
13. apex
14. septum