Question

Identify the correct sequence of events in a cardiac cycle: (a) Diastole, atrial systole, ventricular diastole (B) Atrial systole, ventricular diastole, ventricular systole (c) Atrial systole, ventricular systole, joint diastole (d) Ventricular diastole, diastole, ventricular systole, atrial systole

Name: Problem 100, Chapter 18: Objective Biology for NEET
Uploaded: 2021-11-11T21:31:23-08:00
Duration: 2 min 5 s
Channel: Rehana Riaz
Description: Identify the correct sequence of events in a cardiac cycle: (a) Diastole, atrial systole, ventricular diastole (B) Atrial systole, ventricular diastole, ventricular systole (c) Atrial systole, ventricular systole, joint diastole (d) Ventricular diastole, diastole, ventricular systole, atrial systole

    Identify the correct sequence of events in a cardiac cycle:
(a) Diastole, atrial systole, ventricular diastole
(B) Atrial systole, ventricular diastole, ventricular systole
(c) Atrial systole, ventricular systole, joint diastole
(d) Ventricular diastole, diastole, ventricular systole, atrial systole

Objective Biology for NEET

Rajiv Vijay 1st Edition

Chapter 18, Problem 100

Instant Answer

Solved by Expert Rehana Riaz

11/11/2021

Step 1

This is the contraction of the myocardium of the left and right atria, which forces blood into the ventricles. This can be represented as: \[ \text{Atrial Systole} \rightarrow \text{Blood forced into Ventricles} \] Show more…

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Identify the correct sequence of events in a cardiac cycle: (a) Diastole, atrial systole, ventricular diastole (B) Atrial systole, ventricular diastole, ventricular systole (c) Atrial systole, ventricular systole, joint diastole (d) Ventricular diastole, diastole, ventricular systole, atrial systole

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Key Concepts

Systole

Systole refers to the contraction phase of the cardiac cycle, where the heart muscles contract to pump blood out of the chambers. This phase is divided into atrial systole, which assists in topping up the ventricles, and ventricular systole, which is the main event that propels blood into the systemic and pulmonary circulations.

Diastole

Diastole is the relaxation phase of the cardiac cycle, during which the heart chambers relax and fill with blood. It is a critical period that allows the ventricles to refill after contraction, ensuring the heart is adequately loaded with blood for the next contraction.

Cardiac Cycle

The cardiac cycle is the complete sequence of events in a single heartbeat, involving both electrical and mechanical activities. It coordinates the contraction and relaxation of the heart's chambers to effectively circulate blood through the body, ensuring optimal oxygen and nutrient delivery.

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