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Copyright © 2006 by Elsevier, Inc. Lymphatic System
Copyright © 2006 by Elsevier, Inc. Determinants of Lymph Flow The degree of activity of the lymphatic pump -smooth muscle filaments in lymph vessel cause them to contract -external compression also contributes to lymphatic pumping Figure 16-11; Guyton and Hall
Copyright © 2006 by Elsevier, Inc. Determinants of Lymph Flow Interstitial fluid hydrostatic pressureLymph Flow Figure 16-9; Guyton and Hall Figure 16-10; Guyton and Hall
Copyright © 2006 by Elsevier, Inc. Factors affecting Central Venous Pressure Figure 15-9; Guyton and Hall
Copyright © 2006 by Elsevier, Inc. Venous Pressure in the Body Figure 15-10; Guyton and Hall
Copyright © 2006 by Elsevier, Inc. Venous Valves Valve Deep vein Perforating vein Superficial vein
Copyright © 2006 by Elsevier, Inc. Cardiac Output Curves
Copyright © 2006 by Elsevier, Inc. NORMAL HYPEREFFECTIVE -4 0 +4 +8 25 20 15 10 5 0 CARDIAC OUTPUT (L/min) RIGHT ATRIAL PRESSURE (mmHg) HYPOEFFECTIVE Copyright © 2006 by Elsevier, Inc.
Plateau of CO curve determined by heart strength (contractility + HR) Sympathetics plateau Parasympathetics (HR ) Plateau Heart hypertrophy ’s plateau Myocardial infarction plateau) Plateau The Cardiac Output Curve
Copyright © 2006 by Elsevier, Inc. Point at which plateau occurs on CO curve is determined by heart strength (contractility and HR) Sympathetics plateau Parasympathetics (HR ) plateau) Heart hypertrophy ’s plateau Myocardial infarction plateau) The Cardiac Output Curve
Copyright © 2006 by Elsevier, Inc. Arterial Baroreceptor Reflex Blood Pressure Arterial Baroreceptors Vasomotor Center
Copyright © 2006 by Elsevier, Inc. Anatomy of the Baroreceptors Figure 18-5; Guyton and Hall
Copyright © 2006 by Elsevier, Inc. Response of the Baroreceptors to Arterial Pressure Figure 18-6; Guyton and Hall
Copyright © 2006 by Elsevier, Inc. Response of the Baroreceptors to Pressure Constrict Common Carotids Constrictors Pressure at Carotid Sinuses Arterial Pressure Figure 18-5; Guyton and Hall Figure 18-7; Guyton and Hall
Copyright © 2006 by Elsevier, Inc. Functions of the Baroreceptors Maintains relatively constant pressure despite changes in body posture. Decrease Cardiac Output Sensed By Baroreceptors SupineStanding Decrease Central Blood Volume Vasomotor Center Sympathetic Nervous Activity Decrease Arterial Pressure
Copyright © 2006 by Elsevier, Inc. Carotid and Aortic Chemoreceptors Sympathetic activity ChemoreceptorsVMC O2 CO2 pH BP Figure 18-5; Guyton and Hall
CARDIOVASCULAR PHYSIOLOGY BLOOD PRESSURE AND ITS REGULATION
Blood pressure 1.
Copyright © 2013, 2010 by Saunders, an imprint of Elsevier Inc. Chapter 43 Review of Hemodynamics.
The Cardiovascular system: Heart
Cardiac output and venous return. Cardiac output The quantity of blood pumped into the aorta –Amount of blood that flows through the circulation –Most.
The Microcirculation Figure 16-1; Guyton and Hall.
Chapter 11 The Cardiovascular System
Chapter 19 - The Cardiovascular System: Blood Vessels $100 $200 $300 $400 $500 $100$100$100 $200 $300 $400 $500 Blood Vessel Structure Blood Vessel Function.
Copyright © 2009 Wolters Kluwer Health | Lippincott Williams & Wilkins Chapter 16: Anatomy and Physiology of the Cardiovascular System.
Unit Four: The Circulation
Cardiac output and Venous Return
“Little Cowboy”. Homeostasis and The Heart Tissues and Organs Depend on Appropriate Blood Flow (Perfusion) Supply = Demand.
BLOOD PRESSURE - PHYSIOLOGY ROBYN DANE AND KATY DAVIDSON.
Regulation of Blood Pressure
U N I T I Textbook of Medical Physiology, 11th Edition GUYTON & HALL Copyright © 2006 by Elsevier, Inc. Chapter 1: Functional Organization of the Human.
Heart Failure Dr. Meg-angela Christi M. Amores. The term "cardiac failure" means simply failure of the heart to pump enough blood to satisfy the needs.
Cardiac Output When the heart contracts Cardiac Vocabulary Contractility: Contractility is the intrinsic ability of cardiac muscle to develop force for.
Anatomy and Physiology for Emergency Care Chapter 14 Blood Vessels and Circulation.
BLOOD CIRCULATION. Copyright 2009, John Wiley & Sons, Inc. STRUCTURE AND FUNCTION OF BLOOD VESSELS 5 main types Arteries – carry blood AWAY from the heart.
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