![]() ![]() The myocardium, which is mostly made up of cardiomyocytes, is the main and broadest portion. ![]() The lubricating serous fluid that fills the pericardial space and decreases friction while the heart contracts are secreted by this mesothelium. The epicardium is made up of a simple squamous epithelium known as the mesothelium, which is supported by loose, irregular, or areolar connective tissue that connects to the pericardium.īetween the epicardium and the pericardium is the pericardial cavity, which is filled with lubricating serous fluid. The outer fibrous pericardium and the inner serous pericardium are two different sublayers of the pericardium.Įpicardium is an interior visceral pericardium that is connected to the heart and constitutes the heart wall. The pericardium or pericardial sac is the layer that covers the heart and creates the pericardial region. Pericardium, endocardium, myocardium, and epicardium are the four layers of the heart. The septum is a membrane of muscle tissue that separates the left and right sides of the heart. To understand the structure of the human heart let us look into each aspect of the anatomy individually, walls, chambers, valves and blood vessels are discussed in the anatomy. The two atria serve as blood receiving chambers, while the more muscular ventricles pump blood out of the heart. The atrium is the upper chamber, while the ventricle is the lower chamber. The heart cavity is split along the centre into two chambers, each of which is dissected into a right and left heart. The myocardial layer surrounds the heart, and is made up of numerous layers. Since we have seen about the location of the heart let us look into the structure of the heart or the anatomy, the layers and walls would be discussed in detail in this section. The anatomical positioning of the heart would be understood greatly by the following diagram. The heart’s apex, or inferior tip, is located directly to the left of the sternum, near the articulation of the fourth and fifth ribs with the costal cartilages. The major veins, the inferior and superior vena cava, and the major arteries, the aorta and pulmonary trunk, are all connected to the base of the heart. The heart's dorsal surface is close to the vertebral bodies, while its anterior surface is close to the sternum and costal cartilages. The pericardium, or pericardial sac, separates the cardiac from the other mediastinal organs inside the mediastinum, and it resides in its own compartment termed the pericardial cavity. The human heart is positioned in the thoracic cavity, inside the mediastinum, which is the region between both lungs. ![]() Where is the Heart Located in the Human Body? Questions like where is the heart located in the human body is also answered in the article. The article discusses the anatomy and the physiology of the human heart, it also describes aspects like the structure of the heart and the function of the heart. Your heart's function is controlled by your brain and nerve system. The heart is made up of four main chambers that are driven by electrical impulses and are formed of muscle. The heart of animals with lungs like amphibians, reptiles, birds, and mammals has evolved from a single pump to a double pump that circulates blood. It's the human circulatory system's principal organ. The human heart is a fist-sized hollow muscular organ made up of specialized cell types that is responsible for pumping blood through the circulatory system. It is supported by the diaphragm, the muscular barrier that separates the chest and abdominal cavities. In humans, the heart is located beneath the breastbone, in between two lungs and somewhat to the left of the centre. ![]()
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