Page 220 - Color_Atlas_of_Physiology_5th_Ed._-_A._Despopoulos_2003
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A. Arterial blood-pressure curve
Pulse pressure (P S –P D )
120
Blood pressure (mmHg) 80 F 2 F 1 Systolic blood F 3 Arterial mean pressure when F 1 =F 2 +F 3 F 2 F 1 F 3
pressure (P s )
pressure (P d )
0 Diastolic blood Arterial Blood Pressure
1 Aorta 2 Femoral artery
B. Blood-pressure measurement with sphygmomanometer (Riva–Rocci)
Upper arm
Brachial artery Plate 8.11
Korotkoff
Cuff sounds
(at crook of elbow)
Systolic Pressure
Manometer 150 reading (brachial artery)
125
Pump
mmHg 100
75
Release valve Diastolic
reading Cuff pressure
0
Time
C. Age-dependency of blood pressure D. Blood pressure and blood flow rate
Systolic
Mean pressure Q (L/min)
Rigid tube (constant R)
Diastolic
Blood pressure (mmHg) 150 Blood flow rate . Pressure-related vasodilatation (lungs) Autoregulation (kidneys)
125
75
0
0 20 40 60 80
Age (years) Driving pressure gradient ∆P (mmHg) 207
(after Guyton)
Despopoulos, Color Atlas of Physiology © 2003 Thieme
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