Blood typing

- Antigen is A and the antibodies are anti B

• - A, B, Ab and O 
• all t
• - all of these can be Rh positive or negative. 
• - The differences between the blood types are due to the presence or absence of proteins on the cells of the blood known as antigens

- B antigens and anti A antibodies

• - A and b are the antigens and has no antibodies
• - universal acceptors

• - they have no antigens and has anti b and anti A as name tags.
• - universal donors

The result of incompatible blood types and will cause the immune system to attach it forming blood clots. ( specifically the clotting of red blood cells that block circulations and cause bad damage to organs

• - also known as the Rhesus factor and means if it is positive you have a positive blood type and if negative you have a negative blood type. 
• - Blood types with a negative Rhesus factor can donate blood to blood types of the positive Rhessus factor. However, blood types with a positive Rhesus can donate to a negative one because you will only be creating anti bodies

- This is when the mother and baby do not have the same blood types and their blood mixes and the mother begins to produce antibodies( this is only in the first pregnancy) However , during the second pregnancy these antibodies may be sent to the fetus and in danger it’s life so women take the anti Rh serum during the second pregnancy to destroy these antibodies

• - autoimmune disorders are when the T cells or antibodies attack their own cells thinking they are pathogens. 
• such as. Rheumatoid  when there is an inflammation between joints and Addison disease when the body attacks the adrenal gland and results in no production of coristol and aldosterone. 
• lastly, type 1 diabetes ( Melilitus)  attacks the part of the pancreas that produces insulin.

• AIDS is the disorder and then HIV is the virus that causes destructions of the helper T cells. ( basically destroying immune systems) 
• - spreads through blood to blood, sexual fluids etc