NPB 113 Lecture Notes - Lecture 5: Vagal Tone, Qrs Complex, Heart Block

30 views4 pages

Document Summary

P wave : atrial depolarization ( contraction) Pr segment : av nodal delay ~ 100 msec. Qrs complex : ventricular depolarization ( contraction ) atrial repolarization ( relaxation ) St segment : ventricular ejection of blood. T wave : ventricular repolarization ( relaxation ) Qt segment : ventricular depolarization t repolarization. " abnormal conduction of the heart: first degree heart block. Characterized by slower than average heart rate. Diseased av node ( viral infection , etc) Myocardial or oz supply that results in death of tissue. T vagal tone which t pns activity. Second degree heart block riffraff-wife"the normal pyy-mr heart block. " characterized by skipped heart beats , lack of ventricular ejection to provide blood to rest of body. "- symptoms : sluggish , tired ( or asymptomatic ) #-h#xffn# heart block l l l l l. No correlation between amal and ventricular depolarization no conduction from atria to ventricles.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers