Discuss leukaemia Explain the role of platelets Classify between the different blood types and the Rhesus factor httpwwwyoutubecomwatchvQje0fGJHLY White blood cells produced too quick and are immature ID: 481870
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Slide1
Blood part 3
Discuss leukaemia.
Explain the role of platelets.
Classify between the different blood types and the Rhesus factor.Slide2
http://www.youtube.com/watch?v=Qje0fG_JHLY
Slide3
White blood cells produced too quick and are immature.
Crowd other blood cells.
Can’t fight infection.
LeukaemiaSlide4
HomeworkSlide5
Made in the bone marrow from large cells.
Cells break down to fragments called platelets.
PlateletsSlide6Slide7
Reduce blood loss.
Prevent entry of micro-organisms.
Clot results when damaged cells produce chemicals that make platelets form a clot.
Haemophiliacs:
unable to produce one or more clotting chemicals (factor VIII). Can’t form blood clots.
Clots only form in
damaged
blood vessels.
Blood clot functionsSlide8
What would happen if a clot formed in a vessel in the brain or the heart?Slide9Slide10
The most common blood group in Ireland is O positive.
The rarest blood group in Ireland is AB negative.
The most common blood group is O, accounting for about 46% of the world's population.
People in the West of Ireland are predominantly of blood group O.
There is a higher concentration of Group A blood in counties which historically received Viking and English population settlements
There are more people with Rhesus negative blood on the East coast than the West
Blood typesSlide11
A B and O and ABDepends on chemicals attached to blood cell.
Why is it important in blood transfusion to match up the blood types.
Another blood type is called the Rhesus factor.
85% of Irish people have this. They are said to be Rhesus positive (
Rh
+). The other 15% are Rhesus negative (
Rh
-)
Blood types- Red blood cellsSlide12
85% of Irish people have this. They are said to be Rhesus positive (
Rh
+). The other 15% are Rhesus negative (Rh
-)
e.g. a person with blood group B may be B+ or B- or (B
Rh
+ or B
Rh
-)
have the rhesus chemical on their red blood cell. (B+)
Or don’t have the chemical attached (B-)Slide13
Important in safe blood transfusions.
Rhesus negative mother and rhesus positive child.
Child has a high risk of having major health problems. Could be anaemic, brain damaged or stillborn. Treatment will prevent this.Slide14Slide15
True/FalseSlide16
Study!
class test for 2 weeks time.
Write a paragraph on the blood cell given. People will be picked to read it out next week.
Homework