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18 Cards in this Set
- Front
- Back
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What are the three different types of blood cells?
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RBCs (Erythrocytes)
WBCs (Leukocytes) Platelets |
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All blood cells are formed from a common stem cell by a process referred to as...
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...Haemopoiesis
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Where does haemopoiesis occur?
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In the bone marrow
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White blood cells comprise five different types of cell, what are they?
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Neutrophils
Basophils Eosinophils Monocytes Lymphocytes |
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Which white blood cells are collectively termed the 'granulocytes'?
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Neutrophils, basophils and eosinophils
(the -phils!) |
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The neutrophils, basophils and eosinophils are collectively termed the...
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...granulocytes
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Cellular fragments derived from large multinucleate precursors called megakaryocytes
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Platelets
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What cells do platelets originate from? (after haematopoietic stem cells)
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Megakaryocytes
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The volume of blood taken up by the red cells is termed the...
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...haematocrit
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What is the 'haematocrit'?
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The volume of blood taken up by the red cells
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Give four examples of plasma proteins.
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Fibrinogen
Albumin Immunoglobulins Clotting factors |
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Important in maintaining the vascular volume, and functions in the transport of several molecules which are able to bind to it.
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Albumin
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What is serum (wrt blood)
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Plasma that has been allowed to form a clot, and hence lacks fibrinogen and clotting factors
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How is a person's blood group assigned?
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On the basis of the antigens present on his/her cells
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What is the frequency, in order, of blood groups in the UK?
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O (47%)
A (42%) B (8%) AB (3%) |
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Antibodies that are present without any prior exposure of the individual to the foreign antigens and are present in all individuals except newborn babies. They are of the Ig_ subclass and are complete antibodies.
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Naturally occurring antibodies, they are of the IgM subclass.
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Immune antibodies are normally of the Ig_ subclass
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IgG
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Remember, for a given blood group, the antibodies in the serum are the opposite of the blood group
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E.g. blood group A has anti-B antibodies in serum. O has anti-A and anti-B and AB has none
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