Hemodynamics, Dr. D. Penney

Table 5.02. Amount and relative importance of kinetic energy in different parts of the circulation.

...................... Resting cardiac output ... Cardiac output increased 3x

Vessel K.E. (mmHg) Pressure (mmHg) K.E. % of total K.E. (mmHg) Pressure (mmHg) K.E. % of total

Aorta,

systolic 4 120 3 36 180 17

mean 0.4 100 0.4 3.8 140 2.6*

Arteries,

systolic 0.35 110 0.3 3.8 120 3*

mean 0.04 95 neg. - 100 neg.

capillaries 0.000-0.004 25 neg. neg. 25 neg.

Vena Cava 0.35 2 12 3.2 3 52**

Pulmonary Artery,

systolic 3 20 13 27 25 52**

mean 0.23 12 2 2.1 14 13

* kinetic energy insignificant; ** kinetic energy significant.
Note: For "K.E. (% of total)", K.E. represents the total for each component.

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...................... Resting cardiac output				... Cardiac output increased 3x
Vessel	K.E. (mmHg)	Pressure (mmHg)	K.E. % of total	K.E. (mmHg)	Pressure (mmHg)	K.E. % of total
Aorta,
systolic	4	120	3	36	180	17
mean	0.4	100	0.4	3.8	140	2.6*
Arteries,
systolic	0.35	110	0.3	3.8	120	3*
mean	0.04	95	neg.	-	100	neg.
capillaries	0.000-0.004	25	neg.	neg.	25	neg.
Vena Cava	0.35	2	12	3.2	3	52**
Pulmonary Artery,
systolic	3	20	13	27	25	52**
mean	0.23	12	2	2.1	14	13