What are the parts of the heart? The parts of your heart are like the parts of a building. Your heart anatomy includes: Walls. Chambers that are like rooms. Valves that open and close like doors to the rooms. Blood vessels like plumbing pipes that run through a building. An electrical conduction system like electrical power that runs through a ...

Below we list the different parts of the heart, as well as a brief description of their functions and peculiarities: 1. Myocardium is the contractile muscle layer which performs the mechanical action of pumping blood into the body.

Study with Quizlet and memorize flashcards containing terms like inferior vena cava, superior vena cava, right atrium and more.

6 days ago · 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 inside. The heart cavity is divided down the middle into a right and a left heart, which in turn are subdivided into two chambers.

Dec 26, 2024 · In human anatomy, the heart is roughly the size of a closed fist and lies between the lungs in the chest’s central area. This area is known as the mediastinum. It has four chambers: two upper atria (right and left) and two lower ventricles (right and left).

Nov 3, 2023 · Overview of the anatomy and functions of the heart. The heart is a muscular organ that pumps blood around the body by circulating it through the circulatory/vascular system. It is found in the middle mediastinum, wrapped in a two-layered serous sac called the pericardium.

Jun 11, 2024 · The heart is the pump that moves blood around your body. It has four main parts: two upper chambers called atria and two lower chambers called ventricles. These parts work together to get oxygen-rich blood to your body and oxygen-poor blood back to your heart.

What Are the Heart's Main Components? The heart is made up of four chambers. The upper two chambers are called atria (singular: atrium) and the lower two are known as ventricles (singular: ventricle). Muscular walls, called septa or septum, divide the heart into two sides.

Oct 22, 2019 · The heart is located between the lungs behind the sternum and above the diaphragm. It is surrounded by a sac called the pericardium. It’s only about the size of a fist, and it weighs 7 to 15 ounces.

Each side of the heart consists of an atrium and a ventricle which are two connected chambers. The atria (plural of atrium) are where the blood collects when it enters the heart. The ventricles...