Lesson 3: Types of blood vessels

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

Get ready! 

Summary with questions.

Write down your answers!

Ch2. Blood and Circulation 

Qu1. Name the 3 types
of blood vessels!

Qu1. The 3 types of blood vessels are:

- Arteries

- Veins

- Capillaries

Qu2. Blood vessel types

• a. Arteries - carry blood away from / to the heart.
• b. Veins - Carry blood away from / to the heart.
• c. Capillaries - go to every ............ in the body (for exchange of O2 and CO2).

Qu2. Blood vessel types

• Arteries - carry blood away from the heart.
• Veins - Carry blood back to the heart.
• Capillaries - go to every ............ in the body (for exchange of O2 and CO2).

How does blood move through your body?

Next: 3 slides to help you answer this.

Arteries

• Elastic rigid walls.
• They contract and bounce back to force the blood along ('Pulse').

Veins

• Are wider than arteries.
• Thinner walls.
• Pressure is much lower.
• Blood is sqeezed along by   your muscles.
• Flow is helped by valves.

Capillaries

• Smallest blood vessels.
• Very thin walls (only 1 cell thick)..
• Large surface area.
  
  
• Easy for gas exchange.

Qu3. Place the blood vessels in the correct order
from thin walled to thick walled.

Qu3. The blood vessels in the correct order
from thin walled to thick walled.

Capillaries -->  Veins --> Arteries

oxygen rich from the lungs

oxygen rich to the body

oxygen poor to the lungs

oxygen poor from the body

Qu4. Oxygen-rich vs. Oxygen-poor

A - 4
B - 3

C - 2

D - 1

Pulmonary vein

Aorta

Pulmonary artery

Vena cava

QU5. Pulmonary vein vs. Aorta

A - 4
B - 3

C - 2

D - 1

Tricuspid valve

Aortic valve

Pulmonary valve

Mitral valve

Qu6. Semilunar vs. bi-/tricuspid valves

A - 1
B - 3

C - 2

D - 4

Blood flow through the heart

Kah-

-Dum

.....

Qu 7. When are bi- and tricuspid valves open?

Qu 7. When are bi- and tricuspid valves open?

Qu 7. When are the bi- and tricuspid valves open?

These valves (between atria and ventricles) are open during atrial systole, i.e. when the atrial walls contract.