Jan 21, 2026 · The heart cavity is divided down the middle into a right and a left heart, which in turn are subdivided into two chambers. The upper chamber is called an atrium (or auricle), and the lower …

Jan 26, 2024 · Your heart contains four muscular sections (chambers) that briefly hold blood before moving it. Electrical impulses make your heart beat, moving blood through these chambers.

The human heart is a four-chambered muscular organ, shaped and sized roughly like a man's closed fist with two-thirds of the mass to the left of midline. The heart is enclosed in a pericardial sac that is …

The wall of the heart is made up of three layers: epicardium, myocardium, and endocardium. [8] The heart pumps blood with a rhythm determined by a group of pacemaker cells in the sinoatrial node.

Nov 3, 2023 · This page discusses the heart anatomy. Click here to learn everything about the anatomy of the heart, heart valves and vessels at Kenhub!

Mar 24, 2022 · Blood flows from the body and lungs to the atria and from the atria to the ventricles. The ventricles pump blood out of the heart to the lungs and other parts of the body. An internal wall of …

Sep 3, 2025 · This article provides a comprehensive look at the heart's structure with a detailed, labeled diagram and realistic photos, guiding you through each part and its role in the circulatory system.

Muscular organ that pumps blood through the body. The heart is a muscular organ that pumps blood throughout the body via the circulatory system. It is approximately the size of a fist and consists of …

Jan 5, 2025 · Detailed Anatomy of the Human Heart: Understanding Major Vessels and Structures. The human heart is a complex organ featuring an intricate network of blood vessels, chambers, and …

Nov 19, 2025 · It is located slightly to the left of the sternum, between the lungs, and is protected by a double-layered sac called the pericardium. The heart's structure includes four chambers (two atria …