Advertisements

2.3 Blood and Circulation

Blood Vessels, Circulation and the Heart

  • Can you explain why simple, unicellular organisms rely on diffusion for movement of substances into and out of the cell?
  • Why do multicellular organisms need a transport system?
  • What are the differences in structure between arteries, veins and capillaries?
  • What are the roles of arteries, veins and capillaries?
  • Can you recall the general plan of the human circulatory system including blood vessels to and from the heart, the lungs, the liver and the kidneys?
  • Can you label a diagram of the human heart and explain how it functions?
  • How does heart rate change during exercise and under the influence of adrenaline?

This slideshow requires JavaScript.

Download my PowerPoint presentation on this topic for only £0.99:  bow now

Watch this video to learn about the function of capillaries.

Click here to see how the circulatory system can be split into two parts, the pulmonary (to the lungs) and the systemic (to the body).

Screen Shot 2015-04-01 at 13.45.27

Click here to learn more about the three types of blood vessels, arteries, veins and capillaries.

Screen Shot 2015-04-01 at 13.46.26

Click here to see how the valves in veins prevent the back flow of blood.

Screen Shot 2015-04-01 at 13.47.16

Test your knowledge with Quizlet: IGCSE Biology – Blood Vessels and Circulation

quizlet_logo_large

Learn how to identify the major structures of the heart by watching Mr Exham’s lamb’s heart dissection on YouTube.

Click here to practice labelling a diagram of the heart.

Screen Shot 2015-04-01 at 13.49.01

Click here for a worksheet on the heart.

Screen Shot 2015-04-01 at 13.49.48

Click here to see an animation of how blood floes through the heart.

Screen Shot 2015-04-01 at 13.50.32

Click here to see how the heart rate responds during exercise.

Screen Shot 2015-04-01 at 13.51.34

Test your knowledge with Quizlet: IGCSE Biology – The Heart

quizlet_logo_large

……………………………………………………………………………………………………………………………………………………………………

Blood

  • Can you recall the composition of blood?
  • What is the role of plasma in the transport of carbon dioxide, digested food, urea, hormones and heat energy?
  • How are red blood cells adapted for transporting oxygen?
  • How does the immune system respond to disease (pathogens) using phagocytes and lymphocytes?
  • Can you explain how vaccinations work?
  • How are platelets involved in blood clotting?

This slideshow requires JavaScript.

Download my PowerPoint presentation on this topic for only £0.99:  bow now

Watch this video to help you understand the function and composition of the blood.

This video looks at which cells in our body fight disease and how they do this.

Click here to read information about the blood and take some notes from BBC Bitesize.

Screen Shot 2015-04-01 at 13.53.34

Click here to learn about how platelets are involved with blood clotting.

Screen Shot 2015-04-01 at 13.56.21

Click here to investigate the components of the blood and test your knowledge.

Screen Shot 2015-04-01 at 14.06.58

Click here to learn about antigens and antibodies.

Screen Shot 2015-04-01 at 14.07.59

Click here to see how lymphocytes work to fight pathogens.

Screen Shot 2015-04-01 at 14.08.50

Click here to see how phagocytes engulf pathogens.

Screen Shot 2015-04-01 at 14.09.34

Click here to see a good summary of the immune system with Tim and Moby.

Screen Shot 2015-04-01 at 14.10.44

Click here to learn what a vaccination is.

Screen Shot 2015-04-01 at 14.11.22

Test your knowledge with Quizlet: IGCSE Biology – Blood

quizlet_logo_large

……………………………………………………………………………………………………………………………………………………………………

Extension Material

Click here to see how the pacemaker in the heart controls how it beats.

Screen Shot 2015-04-01 at 14.13.18

Your ECG is a measure of the electrical current flowing through your heart when it beats. Click here to see a normal ECG trace and what can happen to it when the heart malfunctions.

Screen Shot 2015-04-01 at 14.14.05

Click here to learn about how a wound heals.

Screen Shot 2015-04-01 at 14.14.55

Click here to try a virtual heart transplant.

Screen Shot 2015-04-01 at 14.16.09

Circulatory Rap – Pump it up!

The Blood Typing Game – a hands-on animated game that teaches you about human blood types and blood transfusions. When you receive your patient you will need to determine their blood type, choose how many bags of blood your patient will need and then administer their blood transfusion. Click here to play.

Screen Shot 2013-05-15 at 15.38.50

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s

%d bloggers like this: