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2. Anatomy of the human heart - Wikipedia

   en.wikipedia.org/wiki/Anatomy_of_the_human_heart

   The heart is a muscular organ situated in the mediastinum.It consists of four chambers, four valves, two main arteries (the coronary arteries), and the conduction system. The left and right sides of the heart have different functions: the right side receives de-oxygenated blood through the superior and inferior venae cavae and pumps blood to the lungs through the pulmonary artery, and the left ...

3. High fidelity - Wikipedia

   en.wikipedia.org/wiki/High_fidelity

   Hi-fi speakers are a key component of quality audio reproduction.. High fidelity (often shortened to hi-fi or, rarely, HiFi) is the high-quality reproduction of sound. [1] It is popular with audiophiles and home audio enthusiasts.

4. Heart - Wikipedia

   en.wikipedia.org/wiki/Heart

   Common abnormalities include those that affect the heart muscle that separates the two side of the heart (a "hole in the heart", e.g. ventricular septal defect). Other defects include those affecting the heart valves (e.g. congenital aortic stenosis), or the main blood vessels that lead from the heart (e.g. coarctation of the aorta).

5. Cardiac skeleton - Wikipedia

   en.wikipedia.org/wiki/Cardiac_skeleton

   The cardiac skeleton separates and partitions the atria (the smaller, upper two chambers) from the ventricles (the larger, lower two chambers). The heart's cardiac skeleton comprises four dense connective tissue rings that encircle the mitral and tricuspid atrioventricular (AV) canals and extend to the origins of the pulmonary trunk and aorta.

6. Atrioventricular node - Wikipedia

   en.wikipedia.org/wiki/Atrioventricular_node

   Isolated heart conduction system showing atrioventricular node. The AV node receives two inputs from the right atrium: posteriorly, via the crista terminalis, and anteriorly, via the interatrial septum. [8] Contraction of heart muscle cells requires depolarization and repolarization of their cell membranes. Movement of ions across cell ...

7. Atrioventricular septum - Wikipedia

   en.wikipedia.org/wiki/Atrioventricular_septum

   The atrioventricular septum is a septum of the heart between the right atrium (RA) and the left ventricle (LV). [1] [2]Although the name "atrioventricular septum" implies any septum between an atrium and a ventricle, in practice the divisions from RA to RV and from LA to LV are mediated by valves, not by septa.

8. 8 Best Foods That Support Your Heart & Gut at the Same ... - AOL

   www.aol.com/lifestyle/8-best-foods-support-heart...

   Fiber helps your body excrete cholesterol, which is great for your heart (high cholesterol levels increase your risk of heart disease). Fiber also promotes healthy digestion and can act as food ...

9. Neurocardiology - Wikipedia

   en.wikipedia.org/wiki/Neurocardiology

   The cardiovascular system is regulated by the autonomic nervous system, which includes the sympathetic and parasympathetic nervous systems. A distinct balance between these systems is crucial for the pathophysiology of cardiovascular disease. An imbalance can be caused by hormone levels, lifestyle, environmental stressors and injuries. [6]