BL1 Compositions and functions of blood Flashcards
What is plasma?
2) What is the name =of the fluid it is similar to? How do they differ?
the fluid matrix of blood,
2)interstitial fluid, however it does contain proteins
What are the different plasma proteins + roles:
1) Albumin: +contributes to colloid osmotic pressure + carries substances
2) Globulins +is a clotting factor+ carrier protein + enzyme + antibodies (main purpose is immunological role)
3) Fibrinogen + forms fibrin threads essential to blood clotting
4) Transferrin + iron transport
1) What is a haematocrit?
2) What are other names for it?
1) is the volume percentage (vol%) of red blood cells in blood.
2) packed cell volume
What are the cellular components of plasma ?
1) Erythrocytes (red blood cells)
2) Leukocytes (white blood cells)
3) thrombocytes (platelets)
What is the ionic composition of plasma?
cations: Na+, K+, Ca++, Mg++, others
anions Cl- HCO3-, protein, others
What is oncotic pressure?
form of osmotic pressure exerted by proteins, e.g. albumin, in a blood vessel’s plasma (blood/liquid) that usually tends to pull water into the circulatory system.
What is an oedema?
a build up of fluid in the body which causes the affected tissue to become swollen
what protein in plasma is the most abundant?
albumin
what protein in plasma is the most abundant?
albumin
What is the role of albumin?
: +contributes to colloid osmotic pressure + carries substances
What is the role of globulins?
+is a clotting f actor+ carrier protein + enzyme + antibodies (main purpose is immunological role)
What is the role of fibrinogen?
+ forms fibrin threads essential to blood clotting
What is the role of transferrin?
+iron transport
What is the role of transferrin?
+iron transport
1) Where are the proteins in plasma synthesised?
2) what are the 2 exceptions?
1) liver
2) - immunoglobins are synthesised and secreted by specialised blood cells
- Transferrin is provided by globulins from lymphoid
tissue and other tissue
1) Where are the proteins in plasma synthesised?
2) what are the 2 exceptions?
1) liver
2) - immunoglobins are synthesised and secreted by specialised blood cells
- Transferrin is provided by globulins from lymphoid
tissue and other tissue
What is the other name for erythrocytes?
red blood cell
What is the other name for red blood cell?
erythrocytes
What is the other name for white blood cell?
leukocytes
What is the other name for leukocytes?
white blood cell
What is the other name for platelets?
thrombocytes
What is the other name for thrombocytes?
platelets
What is the function of erythrocytes?
oxygen transport
What is the function of leukocytes?
immune responce
what is the function of thrombocytes?
clotting responce
What is the function of leukocytes?
immune response
what is the function of thrombocytes?
clotting response
What can variation in haematocrit show?
presence of a disease or disorder