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Презентация на тему Physiological bases of hemo dynamic

Содержание

2. Kinds of blood movements
4. Formulas of hemodynamic
6. Vessel StructureStructure/function relationships change as one moves
11. Functional types of vesselsAmortization or compensatory vessels – arteriesVolume vessels or veinsExchanged vessels or Capillary
12. Functional types of vesselsResistive vessels or arterioles,
17. Arterial pressureDetermine the influences of factors:1. cardiac
19. Vasomotor control: Sympathetic Innervation of Blood VesselsSympathetic
20. Kinds of arterial pressure1. Systolic or maximal2.
21. Systolic pressure – pressure exerted on arterial
22. Classification of hypertension (1999)
23. Classification of hypertension (NHLBI, 2003).
24. Apparatuses
26. Korotkov Sounds caused by vibration collapse of
28. SphygmogramAnacrota -аCatacrota b Incisura (i)Addition wave с or secondary increase
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Kinds of blood movements

Vessel StructureStructure/function relationships change as one moves through the cardiovascular treeTunic thickness

Functional types of vesselsAmortization or compensatory vessels – arteriesVolume vessels or veinsExchanged vessels or Capillary

Functional types of vesselsResistive vessels or arterioles, smallest arteries; lead to capillary

Arterial pressureDetermine the influences of factors:1. cardiac – systolic volume, speed of

Vasomotor control: Sympathetic Innervation of Blood VesselsSympathetic nerve fibers innervate

Kinds of arterial pressure1. Systolic or maximal2. Side or absolute systolic3. Stroke

Systolic pressure – pressure exerted on arterial walls during ventricular contraction Diastolic

Classification of hypertension (NHLBI, 2003).

Korotkov Sounds caused by vibration collapse of the arterial wall??Korotkoff IV is

SphygmogramAnacrota -аCatacrota b Incisura (i)Addition wave с or secondary increase

Слайды презентации

Слайд 2 Kinds of blood movements

Слайд 4 Formulas of hemodynamic

Слайд 6 Vessel Structure
Structure/function relationships change as one moves through

Vessel StructureStructure/function relationships change as one moves through the cardiovascular treeTunic

the cardiovascular tree

Tunic thickness and composition of the three

layers are variable

Слайд 11 Functional types of vessels
Amortization or compensatory vessels –

arteries

Volume vessels or veins

Exchanged vessels or Capillary

Слайд 12 Functional types of vessels
Resistive vessels or arterioles, smallest

Functional types of vesselsResistive vessels or arterioles, smallest arteries; lead to

arteries; lead to capillary beds
Sphincters
Shunts
Arterial anastomoses provide alternate pathways

(collateral channels) for blood to reach a given body region. If one branch is blocked, the collateral channel can supply the area with adequate blood supply

Слайд 17 Arterial pressure
Determine the influences of factors:
1. cardiac –

Arterial pressureDetermine the influences of factors:1. cardiac – systolic volume, speed

systolic volume, speed of blood ejection from the ventricles,

heart beat; 2. vascular – elasticity of compensatory arteries, tone of resistive vessels, volume of volume vessels;
3. blood – volume of blood, viscosity, hydrostatic pressure of blood.

Слайд 19 Vasomotor control: Sympathetic Innervation of Blood Vessels
Sympathetic nerve fibers

innervate all vessels except
capillaries

and precapillary
sphincters (precapillary sphincters follow local control)
Innervation of small arteries and arterioles allow sympathetic nerves to increase vascular resistance.
Large veins and the heart are also sympathetically innervated.

Figure 18-2; Guyton and Hall

Слайд 20 Kinds of arterial pressure
1. Systolic or maximal
2. Side

Kinds of arterial pressure1. Systolic or maximal2. Side or absolute systolic3.

or absolute systolic
3. Stroke (hemodynamic)
4. Diastolic or minimal
5. Pulse
6.

Result –

де Р – middle-dynamic pressure; Pd – diastolic pressure; Pc – systolic pressure.
Ideal pressure:
Systolic = 102 + (0,6 · age) mm Hg
Diastolic = 63 + (0,4 · age) mm Hg

Слайд 21 Systolic pressure – pressure exerted on arterial walls

Systolic pressure – pressure exerted on arterial walls during ventricular contraction

during ventricular contraction
Diastolic pressure – lowest level of

arterial pressure during a ventricular cycle
Pulse pressure – the difference between systolic and diastolic pressure
Mean arterial pressure (MAP) – pressure that propels the blood to the tissues
MAP = diastolic pressure + 1/3 pulse pressure

Слайд 22 Classification of hypertension (1999)

Слайд 23 Classification of hypertension (NHLBI, 2003).

Слайд 24 Apparatuses

Слайд 25

Слайд 26 Korotkov Sounds caused by vibration collapse of the arterial

Korotkov Sounds caused by vibration collapse of the arterial wall??Korotkoff IV

wall??
Korotkoff IV is a better indication of diastolic pressure

according to theory
However Korotkoff V is the commonly recommended measuring point except in pregnant patients because
It is associated with less inter-observer variations
It is easier to detect by most observers