Lesson 4

• Biologie
• Middelbare school
• havo
• Leerjaar 2

Have ready

CLASSROOM

NOTES

KERBOODLE PAGE 78

TODAY

1. VEINS, ARTERIES & CAPILARIES
2. PARTS OF THE HEART
3. STEPS OF THE HEARTBEAT

How many chambers does the heart have?

2. 4
3. 6
4. 8

What is the name given to the smallest bloodvessels in the body?

BLOODVESSELS

• ARTERIES
• VEINS
• CAPILLARIES

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

DA-DUM-.......

• The left and right atria contract
• The left and right ventricles relax
• The tricuspid and mitral valves open
• The blood flowes into the left and right ventricles
  
• The pulmonary and aortic valves close (the sound DA)