ENG - 68
INTRODUCTION
What is Blood Pressure?
Blood is forced to flow in the blood vessel by the heart pumping constantly.
The pressure that the blood exerted on the vessel wall Is called blood
pressure.
Blood pressures are different for different
parts of the body. Blood pressure values
depend mainly on the following factors:
heart beat pulse
vessel bounce coefficient
vessel circumference resistance
blood beat volume
blood viscosity.
When the heart contracts and blood
is pushed to the arteries, the pressure
rises (the systolic blood pressure).
The heart relaxes after contracting
and the pressure falls (the diastolic blood
pressure).
Pulmonary capillaries
Pulmonary vein
Aorta
Left atrium
Artery
Left ventricle
Artericles
A)
B)
C)
D)
E)
F)
G)
Capillaries
Venules
Right ventricle
Ven
Right atrium
Vena cava
Pulmonary artery
H)
I)
J)
K)
L)
M)
N)
a)
b)
c)
d)
e)