Lesson 4: Blood vessels

Learning Outcomes

1. State the names of the three blood vessels and their function
2. Describe the structure of each type of blood vessel and describe how they are adapted for their function.

Lesson 4 Blood Vesssels

Key Words

•Heart 心
•Vein 静脉
•Artery 动脉
•Capillary 毛细血管

18/03/2024

Open Ended

Sarah says arteries carry oxygenated blood and veins carry deoxygenated blood explain why she is wrong .

Circulatory system Poster

Design and make a poster to show information about the circulatory system.
Begin by deciding which what you will try to show include no more than one or two of the following:

• A plan of the circulatory system

• The heart and how it works

• Blood- what it contains and what it does

• The different kinds of blood vessels.
  
  Find out extra information about the topics that you choose for example
  1. What makes the blood flow upwards in the veins from your feet to the heart?
  2. How is the heart muscle supplied with oxygen and sugar?

The circulatory system?
什么是循环系统？

What is the total length of blood vessels in an
adult human?

That’s more than twice the
distance around the Earth!

Blood is transported around the body by
three main types of blood vessel:

Arteries transport blood away

from the heart

Veins transport blood back to the

heart

Capillaries carry blood to and

from the body’s cells.

Open Ended

State the three types of blood vessels that make up the circulatory system

Multiple Choice

State what type of blood vessel carries blood from the rest of the body to the heart.

• Arteries
• Capillaries
• Lymphatic vessels
• Veins

Multiple Choice

State what type of blood vessel supply blood through a network of small tubes.

• Capillaries
• Veins
• Arteries
• Lymphatic vessels

Multiple Choice

State which type of blood vessel have valves to stop blood flowing backwards.

• Arteries
• Capillaries
• Lymphatic vessels
• Veins

Multiple Choice

State which blood vessel carries blood away from the heart to the rest of the body

• coronary artery
• pulmonary artery
• aorta
• vein

Multiple Choice

State what type of blood vessel carries blood away from the heart to the rest of the body.

• Lymphatic vessels
• Capillaries
• Veins
• Arteries

The Circulatory System

Oxygen O2 is

picked up by red

blood cells.

The blood is now

oxygenated

Oxygenated blood

is pumped to
respiring cells
The cells use the O2

The blood is now
deoxygenated

The cells produce

waste carbon
dioxide (CO2)

The carbon dioxide
(CO2) is removed
from the blood

blood to the

heart

blood from
the heart

carries blood
away from
the heart

artery

carries blood

back into
the heart

Use the posters to complete the worksheet

vein

Multiple Choice

Explain why arteries have the thick elastic walls.

• pulmonary artery
• capillary
• vein
• aorta

Multiple Choice

What is the function of the
valve in veins ?

• Regulate blood pressure
• Increase blood flow
• Prevent backflow of blood
• Control oxygen levels

Multiple Choice

Where do veins carry blood from?

• from the body back to the heart
• from the brain to the body
• from the heart to the brain
• from the heart to the lungs

Open Ended

What was the most interesting thing that you discovered about the heart and blood vessels.

https://www.youtube.com/watch?v=9I-XcW0XXzg

The Heart dissection