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d
v
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Aorta
4.5 cm
2
30-40 cm/s (120)
A.a.
20
20-30 cm/s
Arterioles
400
3 mm/s
Capillaries
4500
0.5-1 mm/s
Venules
4000
0.5-1 cm/s
Veins
40
1-5 cm/s
v.cava
5
8 cm/s
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Methods for Measuring Blood Velocity and Flow
1) Electromagnetic flowmeter
2) Plethysmography
3) Venous occlusion plethysmography
3) Rheoplethysmography
4) Radioactive methods
5) Measurement of circulatory time
6) Ultrasonic flowmeter (Doppler)
Blood Pressure
- Frontal
- Lateral
- Systolic
- Diastolic
- Mean
- Pulse amplitude
Normal values
mm Hg
kPa
LV
125/0
12-20/0
A.a.
120
12-20/8-13
Arterioles
40-50
4-6
Capillaries
30-15
4-2
Veins
4-7
0.5-1
CVP (RA)
-5+5
-0.4+0.4
RV
30/0
3.5/0
PA
27/10
3.5/1.2
Pcap.
10
1.3
LA
-5+5
0.4 + 0.4