What is the approximate axis?-30 degrees0 degrees60 degrees120 degrees The image depicts an electrocardiogram (ECG or EKG) strip showing six leads: I, II, III, aVR, aVL, and aVF. Each lead displays a series of waves with distinct patterns occurring at regular intervals.### Explanation of Components:1. **Leads I, II, III:** - These leads are placed on the limbs and represent the electrical activity of the heart. - They provide a view of the heart's frontal plane and are commonly used for standard ECG analysis. - Each lead shows characteristic waves: P wave, QRS complex, and T wave.2. **Leads aVR, aVL, aVF:** - These are augmented unipolar limb leads, offering additional perspectives on the heart's electrical activity. - They offer different angle views compared to standard limb leads. - Like leads I, II, and III, they also display P waves, QRS complexes, and T waves.### Key Features:- **Grid Background:** - The grid is composed of small squares, each representing time (horizontally) and voltage (vertically). Typically, each small square is 1mm in length, representing 0.04 seconds horizontally and 0.1 mV vertically.- **Waveforms:** - **P Wave:** Represents atrial depolarization. - **QRS Complex:** Indicates ventricular depolarization, typically larger than the P wave. - **T Wave:** Signifies ventricular repolarization.Understanding these components is crucial in identifying normal and abnormal cardiac rhythms, helping diagnose various heart conditions. Always consult with a healthcare professional for interpreting specific ECG readings.

Calculation of axis is based on the major reading of Lead I and Lead aVF. Here we will use following…

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Science

Anatomy and Physiology

What is the approximate axis? -30 degrees 0 degrees 60 degrees 120 degrees

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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