Real human heart: 0:16CC Real -time MRI of the

0:16CC Real -time MRI of the human heart The human heart is in the middle of the thorax, with its apex pointing to the left. [15] The human heart is situated in the mediastinum, at the level of thoracic vertebrae T5 – T8. A double-membraned sac called the pericardium surrounds the heart and attaches to the mediastinum. [16] The back surface of the heart lies near the vertebral column, and the front surface, known as the sternocostal surface, sits behind the sternum and rib cartilages. [8 ... Overview The real human heart is an extraordinary organ, tirelessly working every moment of our lives to sustain us. Despite its relatively small size—about the size of a clenched fist—the heart ’s significance is monumental. It is the central component of the cardiovascular system, pumping blood throughout the body, delivering oxygen and nutrients to tissues, and removing waste products. Let’s delve into some fascinating aspects of the real human heart , backed by research and facts ... Heart Your muscular heart , the main organ in your cardiovascular system, is vital for life. Its parts work together to move blood through your body in a coordinated way. It constantly sends oxygen to your cells and takes away waste. Many conditions can affect this organ and keep it from working well. Heart Definition The heart is a muscular organ that pumps blood throughout the body. It is located in the middle cavity of the chest, between the lungs. In most people, the heart is located on the left side of the chest, beneath the breastbone. The heart is composed of smooth muscle. It has four chambers which contract in a specific order, allowing the human heart to pump blood from the body to the lungs and back again with high efficiency. The heart also contains “pacemaker” cells which ...