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Integrative physiology

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Presentation on theme: "Integrative physiology"— Presentation transcript:

1 Integrative physiology
Hemodynamics Volume balance osmotic balance Oxygen transport Acid-Base homeostasis

2 End diastolic pressere
Cardiac Output Frank-Starling law The heart is a pump driven by its inflow (or pressure on its input) End diastolic pressere

3 Basic properties of blood vessels

4 The heart is a pump driven by its inflow (or pressure on its input)
Inlet pressure Flow The heart is a pump driven by its inflow (or pressure on its input)

5 The heart is a pump driven by its inflow (or pressure on its input)
Elastic arteries Inlet pressure Flow Elastic veins The heart is a pump driven by its inflow (or pressure on its input) Capillary and arteriolar resistances

6 The heart is a pump driven by its inflow (or pressure on its input)
Elastic arteries Inlet pressure Flow Elastic veins The heart is a pump driven by its inflow (or pressure on its input) pressure Capillary and arteriolar resistances volume

7 The heart is a pump driven by its inflow (or pressure on its input)
Elastic arteries Inlet pressure Flow Elastic veins The heart is a pump driven by its inflow (or pressure on its input) pressure Capillary and arteriolar resistances volume

8 The heart is a pump driven by its inflow (or pressure on its input)
Elastic arteries Inlet pressure Flow Elastic veins The heart is a pump driven by its inflow (or pressure on its input) pressure Capillary and arteriolar resistances volume

9 The heart is a pump driven by its inflow (or pressure on its input)
Elastic arteries Inlet pressure Flow Elastic veins The heart is a pump driven by its inflow (or pressure on its input) pressure Capillary and arteriolar resistances volume

10 The heart is a pump driven by its inflow (or pressure on its input)
Elastic arteries Inlet pressure Flow Elastic veins The heart is a pump driven by its inflow (or pressure on its input) pressure Capillary and arteriolar resistances volume

11 The heart is a pump driven by its inflow (or pressure on its input)
Elastic arteries Inlet pressure Flow Elastic veins The heart is a pump driven by its inflow (or pressure on its input) pressure P Capillary and arteriolar resistances V volume V0 compliance C=dV/dP

12 The heart is a pump driven by its inflow (or pressure on its input)
Elastic arteries Inlet pressure Flow Elastic veins The heart is a pump driven by its inflow (or pressure on its input) pressure P Capillary and arteriolar resistances V volume V0 V0 compliance C=dV/dP

13 The heart is a pump driven by its inflow (or pressure on its input)
Elastic arteries Inlet pressure Flow Elastic veins The heart is a pump driven by its inflow (or pressure on its input) pressure P Capillary and arteriolar resistances V volume V0 compliance C=dV/dP

14 The heart is a pump driven by its inflow (or pressure on its input
Elastic arteries Inlet pressure Flow Elastic veins The heart is a pump driven by its inflow (or pressure on its input pressure P Capillary and arteriolar resistances V volume V0 compliance C=dV/dP

15 The heart is a pump driven by its inflow (or pressure on its input)
Elastic arteries Inlet pressure Flow Elastic veins The heart is a pump driven by its inflow (or pressure on its input) pressure P Capillary and arteriolar resistances V volume V0 compliance C=dV/dP

16 The heart is a pump driven by its inflow (or pressure on its input
Elastic arteries Inlet pressure Flow Elastic veins The heart is a pump driven by its inflow (or pressure on its input pressure P Capillary and arteriolar resistances C1 C2 V volume V0 compliance C=dV/dP

17 The heart is a pump driven by its inflow (or pressure on its input
Elastic arteries Inlet pressure Flow Elastic veins The heart is a pump driven by its inflow (or pressure on its input pressure P Capillary and arteriolar resistances C1 < C2 dV1 dV2 dP V volume V0 dV1/dP< dV2/dP compliance C=dV/dP

18 The heart is a pump driven by its inflow (or pressure on its input
Elastic arteries Inlet pressure Flow Elastic veins The heart is a pump driven by its inflow (or pressure on its input pressure P Capillary and arteriolar resistances C1 < C2 V volume V0 dV1/dP< dV2/dP compliance C=dV/dP

19 Guyton experiments

20 The heart is a pump driven by its inflow (or pressure on its input
Q Elastic arteries Elastic veins Pa The heart is a pump driven by its inflow (or pressure on its input Pv Capillary and arteriolar resistances

21 The heart is a pump driven by its inflow (or pressure on its input
Q=0 Elastic arteries Elastic veins Pa The heart is a pump driven by its inflow (or pressure on its input Pv Capillary and arteriolar resistances

22 The heart is a pump driven by its inflow (or pressure on its input
Q=0 Elastic arteries Elastic veins Pa The heart is a pump driven by its inflow (or pressure on its input Pv Capillary and arteriolar resistances

23 The heart is a pump driven by its inflow (or pressure on its input
Q=0 Elastic arteries Elastic veins Pa The heart is a pump driven by its inflow (or pressure on its input Pv Capillary and arteriolar resistances

24 Q=0 Pa = Pm Pv Elastic arteries Elastic veins Pv = Pa = Pm
Flow Q=0 Elastic arteries Elastic veins Pa = Pm Pv Pv = Pa = Pm Q Capillary and arteriolar resistances Pm Pm – „mean circulatory pressure“ Pv

25 Q Pa Pv Elastic arteries Elastic veins
Flow Q Elastic arteries Elastic veins Pa Pv Q Capillary and arteriolar resistances Pm Pv

26 Q Pa Pv Elastic arteries Elastic veins
Flow Q Elastic arteries Elastic veins Pa Pv Q Capillary and arteriolar resistances Pm Pv

27 Q Pa Pv Elastic arteries Elastic veins
Flow Q Elastic arteries Elastic veins Pa Pv Q Capillary and arteriolar resistances Pm Pv

28 Q Pa Pv Pv=0 Elastic arteries Elastic veins
Flow Q Elastic arteries Elastic veins Pa Pv Pv=0 Q Capillary and arteriolar resistances Pm Pv

29 Q cannot rise Pa Pv Pv<0 Elastic arteries Elastic veins
Flow Q cannot rise Elastic arteries Elastic veins Pv< 0 Pa Elastic veins collapses Pv Pv<0 Q Capillary and arteriolar resistances Pm Pv

30 Q=0 Pa = Pm Pv Pv= Pm Elastic arteries Elastic veins
Flow Q=0 Elastic arteries Elastic veins Pa = Pm Pv Pv= Pm Q Capillary and arteriolar resistances Pm Pv

31 Q Pa Pv Elastic arteries Elastic veins
Flow Q Elastic arteries Elastic veins Pa Pv Q Capillary and arteriolar resistances Pm Pv

32 Q Pa Pv Elastic arteries Elastic veins
Flow Q Flow Elastic arteries Elastic veins Pa Pv Q Capillary and arteriolar resistances Pm Pv

33 Q Pa Pv Elastic arteries Elastic veins
Flow Q Elastic arteries Elastic veins Pa Pv Q Capillary and arteriolar resistances Pm Pv

34 Q Pa Pv Elastic arteries Elastic veins
Flow Q Elastic arteries Elastic veins Pa Pv Q Capillary and arteriolar resistances Pm Pv

35 Q Pa Pv Pv=0 Elastic arteries Elastic veins
Flow Q Elastic arteries Elastic veins Pa Pv Pv=0 Q Capillary and arteriolar resistances Pm Pv

36 Q cannot rise Pa Pv Pv<0 Elastic arteries Elastic veins
Flow Q cannot rise Elastic arteries Elastic veins Pa Elastic veins collapes Pv Pv<0 Q Capillary and arteriolar resistances Pm Pv

37 Q=0 Pa = Pm Pv Pv= Pm Elastic arteries Elastic veins
Flow Q=0 Elastic arteries Elastic veins Pa = Pm Pv Pv= Pm Q Capillary and arteriolar resistances Pm Pv

38 Q=0 Pa = Pm Pv Pv= Pm Elastic arteries Elastic veins
Flow Q=0 Elastic arteries Elastic veins Pa = Pm Pv Pv= Pm Q Capillary and arteriolar resistances Pm Pv

39 Q Pa Pv Elastic arteries Elastic veins
Flow Q Elastic arteries Elastic veins Pa Pv Q Capillary and arteriolar resistances Pm Pv

40 Q Pa Pv Elastic arteries Elastic veins
Flow Q Flow Elastic arteries Elastic veins Pa Pv Q Capillary and arteriolar resistances Pm Pv

41 Q Pa Pv Elastic arteries Elastic veins
Flow Q Elastic arteries Elastic veins Pa Pv Q Capillary and arteriolar resistances Pm Pv

42 Q Pa Pv Elastic arteries Elastic veins
Flow Q Elastic arteries Elastic veins Pa Pv Q Capillary and arteriolar resistances Pm Pv

43 Q Pa Pv Pv=0 Elastic arteries Elastic veins
Flow Q Elastic arteries Elastic veins Pa Pv Pv=0 Q Capillary and arteriolar resistances Pm Pv

44 Q cannot rise Pa Pv Pv<0 Elastic arteries Elastic veins
Flow Q cannot rise Elastic arteries Elastic veins Pa Elastic veins collapes Pv Pv<0 Q Capillary and arteriolar resistances Pm Pv

45 Q=0 Pa = Pm Pv Pv= Pm Elastic arteries Elastic veins
Flow Q=0 Elastic arteries Elastic veins Pa = Pm Pv Pv= Pm Q Capillary and arteriolar resistances Pm Pv

46 Q=0 Pa = Pm Pv Pv= Pm Elastic arteries Elastic veins
Flow Q=0 Elastic arteries Elastic veins Pa = Pm Venotonus Pv Pv= Pm Q Capillary and arteriolar resistances Pm Pm Pv

47 Q=0 Pa = Pm Pv Pv= Pm Elastic arteries Elastic veins
Flow Q=0 Elastic arteries Elastic veins Pa = Pm Venotonus Pv Pv= Pm Blood Volume Q Capillary and arteriolar resistances Pm Pm Pv

48 Q=0 Pa = Pm Pv Pv= Pm Elastic arteries Elastic veins
Flow Q=0 Elastic arteries Elastic veins Pa = Pm Venotonus Pv Pv= Pm Blood Volume Q Capillary and arteriolar resistances Pm Pm Pv

49 Q Pa Pv Elastic arteries Elastic veins
Flow Q Elastic arteries Elastic veins Pa Venotonus Pv Blood Volume Q Capillary and arteriolar resistances Pm Pm Pv

50 Q Pa Pv Elastic arteries Elastic veins
Flow Q Flow Elastic arteries Elastic veins Pa Venotonus Pv Blood Volume Q Capillary and arteriolar resistances Pm Pm Pv

51 Q Pa Pv Elastic arteries Elastic veins
Flow Q Elastic arteries Elastic veins Pa Venotonus Pv Blood Volume Q Capillary and arteriolar resistances Pm Pm Pv

52 Q Pa Pv Elastic arteries Elastic veins
Flow Q Elastic arteries Elastic veins Pa Venotonus Pv Blood Volume Q Capillary and arteriolar resistances Pm Pm Pv

53 Q Pa Pv Pv=0 Elastic arteries Elastic veins
Flow Q Elastic arteries Elastic veins Pa Venotonus Pv Pv=0 Blood Volume Q Capillary and arteriolar resistances Pm Pm Pv

54 Q cannot rise Pa Pv Pv<0 Elastic arteries Elastic veins
Flow Q cannot rise Elastic arteries Elastic veins Pa Venotonus Elastic veins collapes Pv Pv<0 Blood Volume Q Capillary and arteriolar resistances Pm Pm Pv

55 Heart + Vessels

56 Cardiac output End diastolic pressure

57 End diastolic pressure
Cardiac output Increase of peripheral resistance End diastolic pressure

58 End diastolic pressure
Cardiac output Decrease of peripheral resistance Increase of peripheral resistance End diastolic pressure

59 or (increase of venotone)
Cardiac output Increase blood volume or (increase of venotone) Decrease of peripheral resistance Increase of peripheral resistance End diastolic pressure

60 or (increase of venotone) or (decrease of venotone)
Cardiac output Increase blood volume or (increase of venotone) Decrease of peripheral resistance Decrease blood volume or (decrease of venotone) Increase of peripheral resistance End diastolic pressure

61 End diastolic pressure
Cardiac output Frank-Starling curve Venous return curve End diastolic pressure

62 End diastolic pressure
Cardiac output Frank-Starling curve Venous return curve End diastolic pressure

63 End diastolic pressure
Cardiac output Frank-Starling curve Venous return curve End diastolic pressure

64 End diastolic pressure
Cardiac output Frank-Starling curve Venous return curve End diastolic pressure

65 End diastolic pressure
Cardiac output Frank-Starling curve Venous return curve End diastolic pressure

66 End diastolic pressure
Cardiac output Frank-Starling curve Venous return curve End diastolic pressure

67 End diastolic pressure
Cardiac output Frank-Starling curve Venous return curve End diastolic pressure

68 Cardiac output diuretics insufficiency kardiotonics Increasing the volume of circulating blood venokonstriction, vasoconstriction End diastolic pressure increase ! pulmonary edema, swelling End diastolic pressure

69 Starling curve and venous return curve
Cardiac output Starling curve Venous return curve preload Normal circulation 69

70 Starling curve and venous return curve
inotropy, heart rate preload Cardiac output Cardiac output inotropy, heart rate Starling curve Venous return curve preload Normal circulation Starling curve changes 70

71 Starling curve and venous return curve
inotropy, heart rate preload Cardiac output Cardiac output inotropy, heart rate Starling curve Venous return curve preload Normal circulation Starling curve changes Cardiac output resistance resistance preload Venous return curve changes 71

72 Starling curve and venous return curve
inotropy, heart rate preload Cardiac output Cardiac output inotropy, heart rate Starling curve Venous return curve preload Normal circulation Starling curve changes Cardiac output resistance Cardiac output venotonus, blood volume resistance venotonus, blood volume preload preload Venous return curve changes Venous return curve changes 72

73 Starling curve and venous return curve
inotropy, heart rate preload Cardiac output Cardiac output inotropy, heart rate Starling curve Venous return curve preload Normal circulation Starling curve changes Cardiac output resistance Cardiac output venotonus, blood volume resistance venotonus, blood volume preload preload Venous return curve changes Venous return curve changes 73

74 Basic Priciples of Hemodynamics in Shock
preload Cardiac output Starling curve Venous return curve Normal circulation 74

75 End diastolic pressure
Cardiac output Cardiac insufficiency Retention volume The increase in venous tone Vasoconstriction End diastolic pressure Cardiogenic shock preload 75

76 Basic Priciples of Hemodynamics in Shock
preload Cardiac output Cardiac output Starling curve inotropy resistance venotonus Venous return curve preload Normal circulation Cardiogenic shock 76

77 Cardiac output preload Increased heart rate and inotropy
Loss of volume Vasoconstriction Compensation - an increase of venous tone Hypovolemic shock preload 77

78 Basic Priciples of Hemodynamics in Shock
preload Cardiac output Cardiac output Starling curve inotropy resistance venotonus Venous return curve preload Normal circulation Cardiogenic shock blood volume resistance heart rate inotropy preload Hypovolemic shock 78

79 Cardiac output preload Increased heart rate and inotropy
cardiodepression vasodilatation Loss of volume – transsudation to ISF Distributive shock preload 79

80 Basic Priciples of Hemodynamics in Shock
preload Cardiac output Cardiac output preload Starling curve inotropy resistance venotonus Venous return curve Normal circulation Cardiogenic shock blood volume resistance resistance heart rate blood volume inotropy heart rate inotropy inotropy preload preload Hypovolemic shock Distributive shock 80

81 Basic Priciples of Hemodynamics in Shock
preload Cardiac output Cardiac output Starling curve inotropy resistance venotonus Venous return curve preload Normal circulation Cardiogenic shock 81

82 Basic Priciples of Hemodynamics in Shock
preload Cardiac output Cardiac output Starling curve inotropy resistance venotonus Venous return curve preload Normal circulation Cardiogenic shock blood volume resistance heart rate inotropy preload Hypovolemic shock 82

83 Basic Priciples of Hemodynamics in Shock
preload Cardiac output Cardiac output preload Starling curve inotropy resistance venotonus Venous return curve Normal circulation Cardiogenic shock blood volume resistance resistance heart rate blood volume inotropy heart rate inotropy inotropy preload preload Hypovolemic shock Distributive shock 83

84 Basic Priciples of Hemodynamics in Shock
preload Cardiac output Cardiac output preload Starling curve inotropy resistance venotonus Venous return curve Normal circulation Cardiogenic shock blood volume resistance resistance heart rate blood volume inotropy heart rate inotropy inotropy preload preload Hypovolemic shock Distributive shock 84

85 Oxygen delivery Circulation PiO2 PaO2 Hb SaO2 Ventilation CaO2*Q

86 Oxygen delivery Oxygen comsumption Circulation PiO2 PaO2 Hb SaO2
Ventilation CaO2*Q ATP/ADP ratio etc. Metabolic requirement VO2 Cells Oxygen comsumption

87 Oxygen delivery Oxygen comsumption Circulation PvO2 PaO2 Hb SaO2
Ventilation CaO2*Q CvO2 PaO2 Diffusion ATP/ADP ratio etc. PistO2 Metabolic requirement VO2 Cells Oxygen comsumption

88 Oxygen delivery Oxygen comsumption Circulation PiO2 PaO2 Hb SaO2
Ventilation CaO2*Q CvO2 PaO2 Diffusion ATP/ADP ratio etc. PistO2 Metabolic requirement VO2 VO2 criticalDO2 Cells Oxygen comsumption Oxygen delivery - DO2


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