Lecture 4 Flashcards
1
Q
Serum
A
Plasma without clotting factors
Fluid collected from clotted blood
2
Q
Plasma
A
Fluid collected from unclotted blood
3
Q
Polycythaemia
A
Increased RBC
4
Q
Thrombocythaemia
A
Increased platelets
5
Q
Leukaemia
A
Increased WBC
6
Q
Minor changes in blood viscosity caused by
A
Fibrinogen
Compliment
C-reactive protein
7
Q
Laminar flow
A
Silent Smooth Unidirectional Maintain energy Typical
8
Q
Turbulent flow
A
Noisy Multidirectional Energy lost In stenosed arteries Ventricles Changing direction
9
Q
Flow
A
Volume transferred per unit time
Directly proportional to pressure gradient
Flow = 1/R x (pressure gradient)
10
Q
Pressure
A
Force per unit time
11
Q
Conductance (K)
A
Measure of ease of flow
12
Q
Resistance
A
Measure of difficulty of flow
1/K
Difference in mean pressure needed to move 1 unit of flow in steady state
13
Q
Low resistance in aorta
A
Large diameter
Short
14
Q
Velocity
A
Distance fluid moves in a given time m/s
15
Q
Pulse pressure
A
Systolic BP - diastolic BP
