Question

During systole of the cardiac cycle, the a. ventricles of the heart are both relaxed. b. ventricles of the heart are both filling. c. ventricles of the heart are both contracting. d. right ventricle is contracting while the left ventricle is at rest. e. left ventricle is contracting while the right ventricle is at rest.

Name: Problem 7, Chapter 47: Biology
Uploaded: 2021-06-16T02:17:14-08:00
Duration: 2 min 42 s
Channel: Ummatul Choudary
Description: During systole of the cardiac cycle, the a. ventricles of the heart are both relaxed. b. ventricles of the heart are both filling. c. ventricles of the heart are both contracting. d. right ventricle is contracting while the left ventricle is at rest. e. left ventricle is contracting while the right ventricle is at rest.

   During systole of the cardiac cycle, the
a. ventricles of the heart are both relaxed.
b. ventricles of the heart are both filling.
c. ventricles of the heart are both contracting.
d. right ventricle is contracting while the left ventricle is at rest.
e. left ventricle is contracting while the right ventricle is at rest.

Biology

Eric P. Widmaier;… 4th Edition

Chapter 47, Problem 7

Instant Answer

Solved by Expert Ummatul Choudary

06/16/2021

Step 1

The cardiac cycle is the sequence of events that occurs when the heart beats. It consists of two main phases: diastole, when the heart ventricles are relaxed and the heart fills with blood; and systole, when the ventricles contract and pump blood to the arteries. Show more…

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During systole of the cardiac cycle, the a. ventricles of the heart are both relaxed. b. ventricles of the heart are both filling. c. ventricles of the heart are both contracting. d. right ventricle is contracting while the left ventricle is at rest. e. left ventricle is contracting while the right ventricle is at rest.

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Key Concepts

Systole

Systole refers to the phase of the cardiac cycle during which the heart muscles, particularly the ventricles, contract. This contraction forces blood out of the heart into the arterial system, with the left ventricle delivering oxygenated blood to the body and the right ventricle sending deoxygenated blood to the lungs.

Cardiac Cycle

The cardiac cycle is the continuous sequence of events that occur in the heart from the beginning of one heartbeat to the beginning of the next. It includes phases of contraction and relaxation (systole and diastole) that ensure blood is continuously pumped throughout the body.

Ventricular Contraction

Ventricular contraction is the specific action within systole where both the left and right ventricles contract simultaneously. This coordinated contraction is critical for generating the pressure needed to eject blood into the aorta and pulmonary artery, ensuring effective circulation.

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