### Educational Resource: Understanding the Electrocardiogram (ECG)#### Figure 1. Electrocardiogram (ECG)**Question 1:** Describe the events happening during:1. **P wave**2. **QRS complex**3. **T wave**4. **P-R interval**5. **Q-T interval**6. **End of T to following R**#### Explanation:The figure illustrates an Electrocardiogram (ECG) tracing, with a detailed breakdown of the various segments and intervals marked. This guide will help you understand the specific components of a heart's electrical activity as recorded by an ECG.**Overview:**- The upper part of the diagram shows a standard ECG recording over a 1-second period with a calibration signal indicating 5 mm.- The lower part zooms in on a single cardiac cycle, labeling important features.**Labels and Components:**1. **P Wave:** - **Label:** The first small upward deflection. - **Description:** Represents atrial depolarization, which initiates atrial contraction.2. **QRS Complex:** - **Label:** The combination of three deflections – Q wave (downward), R wave (sharp upward), and S wave (downward following the R wave). - **Description:** Corresponds to ventricular depolarization, which triggers ventricular contraction.3. **T Wave:** - **Label:** A broad upward deflection following the QRS complex. - **Description:** Reflects ventricular repolarization, as the ventricles recover from contraction.4. **P-R Interval:** - **Label:** The period from the beginning of the P wave to the start of the QRS complex. - **Description:** Indicates the time between the onset of atrial depolarization and the onset of ventricular depolarization, representing the delay at the AV node.5. **Q-T Interval:** - **Label:** The period from the start of the Q wave to the end of the T wave. - **Description:** Represents the total time for ventricular depolarization and repolarization.6. **End of T to Following R:** - **Label:** The period from the end of the T wave to the next R wave (start of the next QRS complex). - **Description:** Often referred to as the isoelectric period, where the heart is at

The electrocardiogram (ECG) is a classical representation of the electrical activity of the heart…

Millivolts Q P wave PR interval R 5 mm S - T wave QT interval 1 s P-R segment R S-T segment QRS complex Figure 1. Electrocardiogram (ECG) Question 1. Describe the events happening during: 1. P wave, 2.QRS complex, 3. T wave, 4. P-R interval, 5. Q-T interval, 6. End of T to following R 1: 2: 3: 4: 5:

Millivolts Q P wave PR interval R 5 mm S - T wave QT interval 1 s P-R segment R S-T segment QRS complex Figure 1. Electrocardiogram (ECG) Question 1. Describe the events happening during: 1. P wave, 2.QRS complex, 3. T wave, 4. P-R interval, 5. Q-T interval, 6. End of T to following R 1: 2: 3: 4: 5:

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,...

See similar textbooks

Similar questions

1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 15.
Please match the following with correct answers; the options for all 3 statements are found in the drop down menu to the right side.
Write the name of each numbered structure on the corresponding numbered line and then follow directions shown on the image to complete the problem
Splenic vein Abdominal aorta Celiac a. and branches Inferior mesenteric artery branch Splenic artery Inferior mesenteric vein Hepatic portal vein Reset Zoom
+ F6 1 Q Search F7 & 7 F8 * 8 F9 ( 9 8 Ф F10 L 000 ) 0 F11 O D Drag and Drop 1 Platelets RBCS 2 3 Fibrinogen 4 Aggregation of platelets 5 Hemorrhage 6 Thrombin Vessel cut 8 Fibrin 9 RBCs enmeshed in fibrin 10 Prothrombin 11 F12 7 Cal Thromboplastin Insert + 11 Clear All Check M PrtSc Del Вас
Blood Type and Rh factor: 10 1. Blood Type and Rh to right A Rh B 0 A Rh B 2. Blood Type and Rh to left
The normal duration of the QRS complex is less than A. 0.01 second B. 0.05 second C. 0.12 second D. 0.15 second
3
1. Order-1000 ml over 6 hrs IV drip factor 15 gtts/ml
Name Lab Time/Date Microscopic Structure of the Blood Vessels bns seine y? 10jsM 1. Use the key choices to identify the blood vessel tunic described. (Some choices may be used more than once.) Key: tunica intima tunica media tunica externa dgirl or to viens queb labanog Obili Ismetni 1. innermost tunic 2. bulky middle tunic; contains smooth muscle and elastic tissue 3. its smooth surface decreases resistance to blood flow 4. tunic of capillaries 2. Describe the basic function that capillaries provide. lene (vessel type) 6. tunic that is especially thick in arteries 7. most superficial tunic 5. tunic(s) of arteries and veins rohe niert bermot 11 Druvies viens OF que 167 viens St 3. Cross-sectional views of an artery and of a vein are shown here. Identify each, and also respond to the related ques- tions that follow. bisoiso ismai bine lametxo adotni esbiyib El mot of pupieril eehehe A hulp enf gehee (vessel type) asllqque ar odt terw St Ishahs no 81 Which of these vessels may have…
Analyze the following electrocardiogram traces taken from the patient. اللسان سلا Trace 1. Taken during one of the episodes of supraventricular tachycardia سلسلسالسليد II Trace 2. Taken after the end of an episode of supraventricular tachycardia. It is observed in sinus rhythm A) Which of the following elements of the electrocardiogram tracing is absent during the tachycardia episode and reappears in the sinus rhythm tracing? a) ST segment b) P wave c) QRS complex d) T wave B) Briefly explain the origin of the electrical activity of the heart that is reflected in the P wave of the electrocardiogram.
Page of 4 ZOOM + 4 6. Determine the following blood types for those four donors. Look at the reaction in each well after adding Anti-serum: Blood Type Anti- A serum Anti- B serum Ant- Rh serum Alfie Nadia Ralph Sebastian