Podcast
Questions and Answers
What does an electrocardiogram record?
What does an electrocardiogram record?
What is the period during which the atria are depolarizing called?
What is the period during which the atria are depolarizing called?
P wave
During which phase do the ventricles repolarize?
During which phase do the ventricles repolarize?
T wave
What does the QRS wave represent?
What does the QRS wave represent?
Signup and view all the answers
What is bradycardia?
What is bradycardia?
Signup and view all the answers
What is fibrillation?
What is fibrillation?
Signup and view all the answers
What is tachycardia?
What is tachycardia?
Signup and view all the answers
What causes heart block?
What causes heart block?
Signup and view all the answers
What is angina pectoris?
What is angina pectoris?
Signup and view all the answers
Study Notes
Electrocardiogram
- Recording of the heart's electrical activity.
- Important tool for diagnosing heart conditions and assessing heart health.
P Wave
- Indicates atrial depolarization.
- Represents the electrical activity associated with the contraction of the atria.
T Wave
- Represents ventricular repolarization.
- Occurs after ventricular contraction, indicating recovery of the ventricles.
QRS Wave
- Signifies ventricular depolarization, leading to contraction.
- Appears after the P wave and before the T wave in an electrocardiogram.
Bradycardia
- Defined as a heart rate below 60 beats per minute.
- Can indicate issues such as heart disease or response to medication.
Fibrillation
- A chaotic and uncoordinated heart rhythm.
- Results in ineffective pumping of blood, posing serious health risks.
Tachycardia
- Characterized by a heart rate exceeding 100 beats per minute.
- May be caused by stress, heart conditions, or stimulants.
Heart Block
- Involves damage to the AV node, affecting the heart's electrical conduction.
- Can be complete or partial, disrupting communication between atria and ventricles.
Angina Pectoris
- Chest pain caused by reduced blood flow to the myocardium.
- Often a symptom of underlying heart disease or ischemia.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge of the circulatory system with this flashcard quiz based on Chapter 11. Learn key terms such as electrocardiogram and various heart waves including P wave, QRS wave, and T wave. Enhance your understanding of heart activities and electrical recordings.
