Blood
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how much blood does the human body contain
5L
what is plasma, explain
made of mostly water , it is 55% of our blood volume. it transports other blood components, nutrients, antibodies, hormones and more.
what is a red blood cell, explain
biconcave shape, flexible so they can squeeze though blood vessels ( capillaries) live for 120 days , constantly being produced in bone marrow
what gives the color of the red blood cell
hemoglobin: contains iron, helps transport oxygen and carbon dioxide
what are platelets, explain
no defined shape, live 10 days, help coagulation(clotting) heal injury by accumulating in the damaged area of a blood vessel and produce fibrous filament to seal wound
what are white blood cells , explain
only blood cells to have nucleus, round, larger but fewer than red blood cells, numbers increase when infection
white blood cell role
protect body, neutralize pathogens(bacteria, virus), rid of dead or damaged cells produce antibodies for foreign invaders, allows cell to recognize invader to protect body.
name all 8 blood types
A+, A-, B+, B-, AB+, AB-, O+, O-
what is antigen , explain
protein found on surface of red blood cells, indicate blood type
what is antibody, explain
protein found in plasma, natural body defense mechanism, job: recognize invader, in plasma fight blood type that isn’t compatible
group A
anti-B, A antigen
group B
anti-A, B antigen
group AB
no antibodies, A and B antigen
group O
anti- A and anti-B, no antigens
what is Rh
a type of antigen on surface of red blood cell, if you have Rh: positive, if not negative( they have antibodies against : anti-Rh
universal recipient
AB+, can recieve any blood type bc it has all antigens( A, B, Rh)
universal donor
O-, no anitgens so no other blood type have antibodies against it, it has all anitbodeis ( anti- a, anit-b, anti Rh)
a blood transfusion is the transer of a blod product from one—- to another —-
person (donor), recipient
what is the biggest risk during a blood transufsion
combining an antigen with antibodies that will attack it causing agglutination (clotting)
a+ can donate to
A+, AB+
a+ can receive from
A+, A-, O+,O-
B+ can donate to
B+, AB+
B+ can receive from
B+, B-, O+, O-
B- can donate to
B-, B+, AB+, AB-