In humans, deoxygenated blood enters the heart through the right atrium from the superior and inferior venae cavae and passes to the right ventricle. From here, it is pumped into pulmonary circulation to …

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.

Dec 6, 2025 · The heart consists of several layers of a tough muscular wall, the myocardium. A thin layer of tissue, the pericardium, covers the outside, and another layer, the endocardium, lines the …

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 …

The heart is a hollow, muscular organ that pumps oxygenated blood throughout the body and deoxygenated blood to the lungs. This key circulatory system structure is comprised of four chambers.

Sep 3, 2025 · The anatomy of the human heart starts with understanding each of the four chambers. Learn about the upper, lower, right, and left parts of heart anatomy.

Nov 12, 2025 · Figure 1 - Anatomy of the heart: anatomical illustrations and structures, 3D model and photographs of dissection. Some illustrations have been drawn and coloured with Adobe Photoshop. …

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 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!

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 …