What are the functions of the cardiac cycle and the anatomy of the heart?
Understand the Problem
The question relates to the human heart, specifically the anatomy and functions of the cardiac cycle, including the processes of systole and diastole.
Answer
The cardiac cycle involves diastole (filling) and systole (ejection); heart anatomy directs blood flow.
The cardiac cycle consists of diastole, when the heart relaxes and fills with blood, and systole, when it contracts and ejects blood. The heart's anatomy includes structures like the atria, ventricles, and valves, which guide blood flow through the heart's chambers and into the body.
Answer for screen readers
The cardiac cycle consists of diastole, when the heart relaxes and fills with blood, and systole, when it contracts and ejects blood. The heart's anatomy includes structures like the atria, ventricles, and valves, which guide blood flow through the heart's chambers and into the body.
More Information
The heart is organized to efficiently pump blood throughout the body using a complex conduction system and muscle contractions. Key parts like the atria and ventricles ensure proper blood flow direction.
Tips
A common mistake is confusing diastole and systole. Diastole is relaxation and filling, while systole is contraction and ejection.
Sources
- Cardiac Cycle | Anatomy and Physiology II - Lumen Learning - courses.lumenlearning.com
- Structure and Function of the Heart - News-Medical - news-medical.net
- The cardiac cycle - Structure and function of the heart - BBC Bitesize - bbc.co.uk
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