8.6 Around your cells

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Slide 1: Diapositive
BiologieMiddelbare schoolvwoLeerjaar 3

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Slide 1 - Diapositive

Today
Quiz
Learning objectives
Introduction
Instruction (blood pressure, tissue fluid, lymphatic system)
Homework assignments
End of class

Slide 2 - Diapositive

A quiz to test your knowledge!
1 drag and drop question
4 multiple choice questions

Slide 3 - Diapositive

Pulmonary vein
Aorta
Pulmonary artery
Vena cava

Slide 4 - Question de remorquage

Which artery brings blood to the heart?
A
Aorta
B
Coronary arteries
C
Coronary veins
D
Pulmonary artery

Slide 5 - Quiz

The left atrium receives oxygen rich blood from the ...
A
Pulmonary veins
B
Pulmonary arteries
C
Coronary arteries
D
Aorta

Slide 6 - Quiz

This type of blood vessel delivers blood TO the organs and tissues.
A
Arteries
B
Veins

Slide 7 - Quiz

What is the function of white blood cells?
A
Blood clotting
B
Fight pathogens
C
Transport oxygen
D
Transport glucose

Slide 8 - Quiz

8.6 Around your cells
Learning objectives
  • You will learn how substances flow in and out your cells and how tissue fluid ends up in your blood.
  • You will learn what the function is of your lymphatic system.

Slide 9 - Diapositive


Where does the liquid in blisters come from?

Slide 10 - Diapositive

Blood pressure
= force with which blood pushes against the walls of blood vessels

Healthy blood pressure for young people = around 110/70 millimetre of mercury

Systolic pressure = arises when the ventricles contract

Diastolic pressure = during heartbeat pause

Slide 11 - Diapositive

How do substances enter and leave your cells?
Tissue fluid = fluid that flows around your cells; intermediate station between blood and cells

Slide 12 - Diapositive

How does tissue fluid re-enter your blood?
1. Lymphatic vessels = small canals that remove the excess tissue fluid from tissues
  • Lymph = tissue fluid inside a lymphatic vessel

2. Capillaries

Slide 13 - Diapositive

Lymphatic system
Lymphatic vessels:
Valves
Flabby walls
Low pressure

Does this remind you of something?

Slide 14 - Diapositive

Slide 15 - Diapositive

Lymphatic system = ensures that tissue fluid flows back into the bloodstream and that pathogens are fought

Lymph glands or lymph nodes

Slide 16 - Diapositive

Lymph glands/ lymph nodes
in here, a few lymphatic vessels join; they contain a lot of white blood cells

Slide 17 - Diapositive

What?
Read: 8.6 Make 4-14 (p. 92)
How?
In your book. You may whisper if you want to discuss an assignment with your neighbour. 
Help?
Try to answer the question together. Raise your hand if you can't figure it out together. 
Time?
15 minutes
Finished?
Check your answers with the solutions in Teams. 
Proceeds
You have finished your homework! Well done!

Slide 18 - Diapositive

End of class!
Don't pack your bags yet!
 
Stay seated until the bell rings.

Don't forget to push your chair under the table when it does!

Slide 19 - Diapositive