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Blood
N/A
37
Biology
Undergraduate 1
10/13/2012

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Term
What are the three general functions of blood?
Definition
  1. Transport
  2. Immune Response
  3. Coagulation
Term
In a 70kg male, how much blood on average will that person have?
Definition
5.5 L
Term
If you have a lean body mass, you have less blood, true or false?
Definition
False
Term
What are the two components of blood?
Definition
  1. Plasma
  2. Cells
Term
What two things is plasma comprised of?
Definition
  1. Water (90%)
  2. Proteins and solutes (10%)
Term
What are some functions of Albumins?
Definition
Maintaining osmotic pressure, as a buffer, to bind and transport insoluble substances, some are hormones, some are coagulation factors
Term
What are the three main types of  cells found in the blood?
Definition
White blood cells, Red blood cells, Platelets
Term
Do all the cells found in the blood originate from the same progenitor cells?
Definition
Yes
Term
What is the Haematocrit?
Definition
The Packed Cell Volume
Term
How can you separate the components of Blood?
Definition
Using a centrifuge
Term

What fraction of haematocrit is taken up by Red Blood Cells in:

Males

Females

Definition
Term

Males = 0.40-0.54

 

Females = 0.37-0.47

Definition
Term
What is Anaemia?
Definition
Having few Red Blood Cells
Term
What is wrong with you if you are Polycythemic?
Definition
Lots of Red Blood Cells
Term
What is the reason for the main difference in Red Blood Cell amount in men and women?
Definition
The presence of Testosterone
Term
What are the two main groups of White Blood Cells and what defines them?
Definition
  1. Granulocytes - Multi-nuclear
Term
What is the largest type of White Blood Cell?
Definition
Monocytes
Term
What are the major difference between Lymphocytes and Monocytes?
Definition
Lymphocytes have a large rounded nucleus and produce antibodies. Monocytes have a horseshoe shaped nucleus and are phagocytic.
Term
Red Blood Cells are rigid, true or false?
Definition
False
Term
What is the production of Red Blood Cells known as?
Definition
Erythropoiesis
Term
What is the production of Red Blood Cells stimulated by?
Definition
Erythropoietin (EPO)
Term
What is the life span of a Red Blood Cell?
Definition
Roughly 120 days
Term
What removes dead or damaged Red Blood Cells?
Definition
Macrophages
Term
What is the process by which Platelets and Thrombocytes are created called?
Definition
Thrombopoiesis
Term
What are the three main causes of Anaemia?
Definition
  1. Decreased Red Blood Cell production
  2. Increased Red Blood Cell destruction
  3. Bleeding
Term
What three steps does the blood take when an injury occurs?
Definition
  1. Constriction of blood vessels
  2. Formation of platelet plug
  3. Formation of a blood clot
Term
What are the unique parts of the Extrinsic Coagulation pathway?
Definition

Tissue damage --> Tissue Factor

Tissue Factor + Factor VII --> Factor X

Term
What are the unique parts of the Intrinsic blood coagulation pathway?
Definition

Cotact with damaged blood vessel --> Actiated factor XII

Factor XII --> Activated factor X

Term
What is the cascade pathway that both the Intrinsic and Extrinsic Blood Coagulation pathways have in common?
Definition

Factor X --> Prothrombin

Prothrombin + Prothrombin activator + Calcium --> Thrombin

Thrombin + Fibrinogen --> Fibrin

Fibrin --> Blood clot

Term
In blood vessels, what opposes Clot formation?
Definition
Smooth endothelial surface, Tissue factor pathway inhibitors, Thrombin inhibition, Asprin
Term
How is a blood clot dissolved?
Definition

Tissue-plasminogen activator (t-PA) --> plasminogen

Plasminogen --> Plasmin

Plasmin --> break down of fibrinogen

Term
How many genes are the four different blood groups caused by?
Definition
Three
Term
People with AB blood can safley recieve blood from people with what type(s) of blood?
Definition
AB, A, B, O
Term
People wih O type blood can recieve blood from which type(s) of blood?
Definition
O
Term
What is the the Rhesus system?
Definition
People with a 'D-antigen' (positive and negative)
Term
What complications can arise from a Rh- mother have Rh+ children?
Definition
First baby the mother will develop antibodies to the D-antigen. When the second baby is developing, these antibodies will attack the blood of the developing foetus, as they can cross the placenta
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