DATA ANALYSIS 1. What electrical and mechanical events correlate to the P wave? The QRS complex? The T wave? 2. During which ECG interval does filling of the ventricles occur? During which ECG interval does ejection occur? What is systole and diastole? 3. Describe the path an action potential travels during one cardiac cycle. 4. Describe the flow of blood through the heart and the subsequent flow through the body. 5. What changes occurred in heart rate as position changes from lying down to sitting up? Describe the physiological mechanisms causing these changes. 6. What percentage of the resting cardiac cycle is systole and what percentage is diastole? How did this percentage change with exercise? Explain.

DATA ANALYSIS 1. What electrical and mechanical events correlate to the P wave? The QRS complex? The T wave? 2. During which ECG interval does filling of the ventricles occur? During which ECG interval does ejection occur? What is systole and diastole? 3. Describe the path an action potential travels during one cardiac cycle. 4. Describe the flow of blood through the heart and the subsequent flow through the body. 5. What changes occurred in heart rate as position changes from lying down to sitting up? Describe the physiological mechanisms causing these changes. 6. What percentage of the resting cardiac cycle is systole and what percentage is diastole? How did this percentage change with exercise? Explain.

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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