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Oct 31, 2024 · heart, organ that serves as a pump to circulate the blood. It may be a straight tube, as in spiders and annelid worms, or a somewhat more elaborate structure with one or more receiving chambers (atria) and a main pumping chamber (ventricle), as in mollusks. In fishes the heart is a folded tube, with three or four enlarged areas that correspond ...
- Kids
Heart disease can lead to a heart attack. A heart attack...
- Coronary Heart Disease
coronary heart disease, disease characterized by an...
- Heart Rate
heart rate, the number of times the ventricles of the heart...
- Pulmonary Circulation
pulmonary circulation, system of blood vessels that forms a...
- Heart Murmur
If a physician hears a heart murmur through a stethoscope,...
- Students
Encyclopædia Britannica, Inc. A muscular, pear-shaped organ...
- Ventricle
In humans, the ventricles are the two lower chambers of the...
- Chambered Heart
Other articles where chambered heart is discussed:...
- Kids
- Echocardiogram: Uses sound waves to produce images of your heart. This common test allows your physician to see how your heart is beating and how blood is moving through your heart.
- Transesophageal echocardiography (TEE): Uses high-frequency sound waves (ultrasound) to make detailed pictures of your heart and the arteries that lead to and from it.
- Electrocardiogram (ECG or EKG): Measures the electrical activity of the heartbeat to provide two kinds of information. First, by measuring time intervals on the ECG, a doctor can determine how long the electrical wave takes to pass through your heart.
- Magnetic resonance imaging (MRI): Uses a magnetic field and radiofrequency waves to create detailed pictures of organs and structures inside your body.
Nov 10, 2024 · The heart is central to maintaining life, and its proper function is essential for sustaining circulation and oxygen delivery throughout the body. Any abnormalities in the heart’s structure or function can lead to serious cardiovascular conditions. Common heart-related disorders include:
- What Are The Parts of The Heart?
- Where Is Your Heart located?
- What Does Your Heart Look like?
The parts of your heart are like the parts of a building. Your heart anatomy includes: 1. Walls. 2. Chambers that are like rooms. 3. Valvesthat open and close like doors to the rooms. 4. Blood vesselslike plumbing pipes that run through a building. 5. An electrical conduction systemlike electrical power that runs through a building.
Your heart is in the front of your chest. It sits slightly behind and to the left of your sternum (breastbone), which is in the middle of your chest. Your heart is slightly on the left side of your body. It sits between your right and left lungs. The left lung is slightly smaller to make room for the heart in your left chest. Your rib cage protects...
Your heart looks a little bit like an upside-down pyramid with rounded edges. Large blood vessels go into and out of your heart to bring blood into and away from your heart. They connect your heart to the rest of your body, which it supplies with blood and oxygen.
The heart is an amazing organ. It starts beating about 22 days after conception and continuously pumps oxygenated red blood cells and nutrient-rich blood and other compounds like platelets throughout your body to sustain the life of your organs. Its pumping power also pushes blood through organs like the lungs to remove waste products like CO2.
Sep 4, 2022 · Structure and Function of the Heart. As the central part of the circulatory system, the heart is responsible for pumping blood, supplying oxygen and nutrients, and removing metabolic waste such as ...
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The human heart is located within the thoracic cavity, medially between the lungs in the space known as the mediastinum. Figure 19.2 shows the position of the heart within the thoracic cavity. Within the mediastinum, the heart is separated from the other mediastinal structures by a tough membrane known as the pericardium, or pericardial sac ...
