blood Flashcards
Four components of blood
Plasma, red cell, white cell, platelet
Which of the four components have a nucleus
white cell
Contents of plasma
protein, hormones, H20
Function of plasma
Transports nutrients and waste Eg:C02
Shape of red cell
donut
Function of red cell
Haemoglobin carries 02
disease associated with red cells
Anemia
Types of white cells and their functions
Lymphocyte makes antibodies to kill bacteria
Monocytes engulf bacteria
Disease associated with white cells
Leukemia
Shape of platelets
Bits of cells
Function of platelets
clot blood at site of a cut
Disease associated with platelets
Haemophilia
Where are blood cells made
bone marrow
What determines blood type
antigen type on red blood cell
Name the four blood groups
A, B, AB, O
Universal blood donor and universal blood recipient
donor: O
recipient: AB
what does Rh stand for
Rhesus factor
Why can’t Rh+ blood be given to Rh-
Introducing something foreign
Name the three blood vessel types
Vein, artery, capillary
Wall of artery vs vein vs capillary
artery: thick, vein:thin, capillary: very thin
Which blood vessels have valves
Veins
Where do arteries, veins and capillaries carry blood
A: away from heart, V: to heart, C: wrapped around cells + brings blood close to cells
Components of artery and vein
Collagen, muscle elastic fibres in wall, endothelium, lumen
Components of capillary
Endothelium, luman
Define endothelium
Inside lining which protects muscles
function of collagen
prevents over expansion of vessel
Muscle elastic fibres function
allows expansion and contraction
What occurs at capillaries
nutrients and O2 enter cells, waste and CO2 leave cells and enter blood
Name a blood vessel that has capillaries at both ends
Hepatic portal vein
How does blood move through veins
Muscles contract, valves prevent backflow
