'Pacemaker cells' diaporamas de présentation

Circulatory Systems

38. Circulatory Systems. Chapter 38 Circulatory Systems. Key Concepts 38.1 Circulatory Systems Can Be Open or Closed 38.2 Circulatory Systems May Have Separate Pulmonary and Systemic Circuits 38.3 A Beating Heart Propels the Blood 38.4 Blood Consists of Cells Suspended in Plasma.

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INTRODUCTION

INTRODUCTION.

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PRACTICAL ELECTROCARDIOGRAPHY

PRACTICAL ELECTROCARDIOGRAPHY. M. Catherine Hough Ph.D, RN Kathy Robinson RN, Ph.D, CCRN Spring Semester 2002. Electrocardiogram. EKG or ECG. Characteristics of EKG Paper. Horizontal Axis is a function of time Vertical Axis indicates amplitude ONLY in a calibrated recording.

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Electrical Activity of the Heart

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Chapter 22

Chapter 22. The Lymphatic System. Chapter 22 Outline. Lymphatic System Immunity Innate Immunity Adaptive Immunity Immune Interactions Immunotherapy Acquired Immunity Effect of aging on the lymphatic system & immunity. I. Lymphatic System. I. Lymphatic System. Includes: Lymph

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How do we measure heart performance? Cardiac Output = Blood Volume per Minute!

How do we measure heart performance? Cardiac Output = Blood Volume per Minute!. Cardiac Output = heart rate x stroke volume. Heart rate = # of beats per minute; can measure by taking pulse; normally ~ 75 b/min Stroke Volume = volume of blood ejected by L. Ventricle in one cardiac cycle.

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Chapter 6

Chapter 6. The Cardiovascular System and Its Control. The Cardiovascular System: Major Functions. Delivers O 2 , nutrients Removes CO 2 , other waste Transports hormones, other molecules Temperature balance and fluid regulation Acid-base balance Immune function. The Cardiovascular System.

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CHAPTER 47 Effectors: Making Animals Move

CHAPTER 47 Effectors: Making Animals Move. Chapter 47: Effectors: Making Animals Move. Effectors Cilia, Flagella, and Cell Movement Muscle Contraction Skeletal Systems Provide Support for Muscles Other Effectors. Effectors.

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Principles of Animal Physiology

Principles of Animal Physiology. Circulatory Systems. Introduction. Components of circulatory systems Fluid - contains transport molecules and cells (blood or hemolymph) Pump - to move the fluid around Conduits (vessels) - to carry the fluid between pump and body tissues.

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Principles of Animal Physiology

Principles of Animal Physiology. Circulatory Systems. Introduction. Components of circulatory systems Fluid - contains transport molecules and cells (blood or hemolymph) Pump - to move the fluid around Conduits (vessels) - to carry the fluid between pump and body tissues.

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Parasympathetic Stimulation

Parasympathetic Stimulation. Vagus nerve Primarily innervates atria, but some fibers to ventricles also Chemical mediator: acethycholine Effect: slows heart rate and AV conduction Methods of stimulation: Valsalva maneuver, carotid sinus pressure. Sympathetic Stimulation.

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Hypothermia Hyperthermia

Hypothermia Hyperthermia. Dr. Stella Yiu Staff Emergency Physician. S Yiu, 2012. Hypothermia: LMCC wants you to. List causes List illnesses that precipitate hypothermia Conduct neurological, CVS and resp assessment List and monitor investigations

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Peri-op Cardiac Arrhythmias, cause, recognition and treatment.

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Circulatory System

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Smooth Muscle Physiology

Smooth Muscle Physiology. Muscular System Functions. Body movement (Locomotion) Maintenance of posture Respiration Diaphragm and intercostal contractions Communication (Verbal and Facial) Constriction of organs and vessels Peristalsis of intestinal tract

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IPHY 3430 3-1-11

IPHY 3430 3-1-11. Heart Function Purpose: generates a hydrostatic pressure gradient that causes blood to flow Specialized muscle cells--functional syncytium.

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Cardiac Cycle

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ELECTRICAL ACTIVITY OF THE HEART

ELECTRICAL ACTIVITY OF THE HEART. Dr. Ayisha Qureshi Assistant Professor MBBS, MPhil. Cardiac cells contract without Nervous Stimulation. . Cardiac muscle, like skeletal muscle & neurons, is an excitable tissue with the ability to generate action potential.

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Heart Physiology and the Pacemaker

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The Heart

The Heart. Control of the Heart Beat. The Heart Beat. The heart is made up of cardiac muscle. Cardiac muscle is myogenic , which means it naturally contracts and relaxes. Therefore, it receives no impulse from a nerve to make it contract. The Heart Beat.

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