Lecture.6 bp

Cardiovascular System Blood Pressure SMS 1053 Dr. Mohanad R. Alwan

Blood Flow ,[object Object],[object Object],[object Object],[object Object],[object Object]

Blood Pressure (BP) ,[object Object],[object Object],[object Object],[object Object]

Resistance ,[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],Resistance Factors: Viscosity and Vessel Length

Resistance Factors: Blood Vessel Diameter ,[object Object],[object Object],[object Object]

Resistance = tendency of the vascular system to oppose flow; Flow = ,[object Object],Poiseuille’s Law R = L  r 4 ,[object Object],1 R

Resistance Factors: Blood Vessel Diameter ,[object Object],[object Object],[object Object],[object Object]

Blood Flow, Blood Pressure, and Resistance ,[object Object],[object Object],[object Object],[object Object],[object Object]

Systemic Blood Pressure ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Systemic Blood Pressure Figure 19.5

Arterial Blood Pressure ,[object Object],[object Object],[object Object],[object Object]

Arterial Blood Pressure ,[object Object],[object Object],[object Object],[object Object],[object Object]

Capillary Blood Pressure ,[object Object],[object Object],[object Object]

Venous Blood Pressure ,[object Object],[object Object],[object Object]

Maintaining Blood Pressure ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Controls of Blood Pressure ,[object Object],[object Object],[object Object],[object Object]

Regulation of Blood Pressure ,[object Object]

Regulation of Cardiovascular System Overview-

Short-Term Mechanisms: Neural Controls ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Short-Term Mechanisms: Vasomotor Center ,[object Object],[object Object],[object Object]

Short-Term Mechanisms: Vasomotor Activity ,[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],Short-Term Mechanisms: Baroreceptor-Initiated Reflexes

Short-Term Mechanisms: Chemical Controls ,[object Object],[object Object],[object Object],[object Object]

Chemicals that Increase Blood Pressure ,[object Object],[object Object],[object Object],[object Object]

Chemicals that Decrease Blood Pressure ,[object Object],[object Object],[object Object],[object Object]

Control of Cardiovascular Function – Hormones Decreased Blood Pressure

Control of Cardiovascular Function – Hormones Increased Blood Pressure

Long-Term Mechanisms: Renal Regulation ,[object Object],[object Object],[object Object],[object Object]

Kidney Action and Blood Pressure ,[object Object],[object Object],[object Object]

Kidney Action and Blood Pressure

Autoregulation: Local Regulation of Blood Flow ,[object Object],[object Object],[object Object]

Metabolic Controls ,[object Object],[object Object],[object Object],[object Object]

Myogenic Controls ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Monitoring Circulatory Efficiency ,[object Object],[object Object],[object Object],[object Object],[object Object]

Variations in Blood Pressure ,[object Object],[object Object],[object Object]

Alterations in Blood Pressure ,[object Object],[object Object],[object Object],[object Object]

Hypotension ,[object Object],[object Object],[object Object],[object Object]

Hypertension ,[object Object],[object Object],[object Object]

Blood Flow Through Tissues ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Velocity of Blood Flow ,[object Object],[object Object],[object Object],[object Object]

Velocity of Blood Flow Figure 19.13

Lecture.6 bp

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