Circulation in mammals Flashcards
(24 cards)
Size of rbc
7-8 micrometer;2.2 micrometer
on avg 2x smaller than wbcs;
about same size as lymphocytes
3 times smaller than monocupytes
Name granulocytes
Basophils
neutrophils
eosinophils
%composition of granulocyte
Basophils: 0.5%
Eosinophils: 1.5%
neutrophils:70%
total= 72%
General Characteristics of granulocytes
Lobed nucleus
granules in cytoplasm
General characteristics of agranulocytes
Single nucleus
Clear cytoplasm
structure of Eosinophils
Red coarse granules
+ lobed nucleus
RED sy Rameen and Rameen rhymes with Histamine (allergies)
Structure of neutrophils
Lobed nucleus
Fine blue particles/ purple particles
(P sy Purple: P sy Phagocytes)
( Notoriously FINE)
Structure of Basophils
Lobed nucleus
Coarse Blue / purple
Heparin ( prevents blood clotting)
(BASO: BASS: coarse)
% composition of agranulocytes
Lymhocytes: 24%
Monocytes: 4%
Total: 28%
Structure of Monocytes
Kidney-shaped nucleus;
clear cytoplasm;
Macrophages in tissues
Phagocytes
(Phage in macrophage sy phagocyte)
Name agranulocytes
Lymphocytes
Monocytes
Structure of lymphocytes
Nucleus as big as cell
Produce Antibodies
Clear cytoplasm
Characteristics of platelets
- breakdown fragments of megakaryocytes
- only cell membrane and cytoplasm
- irregularly shaped
- blood clotting
Functions of Blood
- Transport of nutrients
- Transport of wasteproducts
- Transport of Hormones
- Tranport of minerals
- Transport of oxygen:
* combo with hB
* just aisy - Defence:
* Antibody production
* Phagocytosis - Blood clotting: platelets
“‘Now We Have Many Outstanding’ Dreamy Blue-Cats.”
Osmotic pressure in capillaries
Water potential gradient: greater conc of dissolved protein in blood pla
25mm of HG
(constant throughout)
Pressure(kPA) in capillaries
4kPA at arteriolar end
1kPA at venular
Hydrostatic Pressure
(bahar ki taraf)
pushes fluid out
At Arteriolar end: 35 (HP>OP)
At venular: 15(OP>HP)
How much plasma returns back to the capillaries ?
90%
What is the swelling of tissue due to accumulation of tissue fluid?
Oedema
What does the tissue fluid contain ?
Solutes ( glucose and a.a)
O2 and Co2
Hormones
Neurotransmitters
Composition of tissue fluid compared to blood plasma?
Fewer proteins
No RBCs
WBC hote hain
WBCs squeeze through the walls: phagocytes
ODC: where will **respiring/active tissue **lie?
ODC: oxygen dissociation curve
Rightwards
higher CO2 concentration : lower affinity of O2
ODC:Where will resting tissue lie?
(compared to respiring tissue)
Leftwards
comparitively lesser CO2
Which WBCs pass into tissue fluid?
Monocytes and neutrophils
