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The heart is the first functional organ in vertebrate embryos. The tubular heart quickly differentiates into the truncus arteriosus, bulbus cordis, primitive ventricle, primitive atrium, and the sinus venosus. The truncus arteriosus splits into the ascending aorta and the pulmonary trunk. The bulbus cordis forms part of the ventricles.
The heart derives from splanchnopleuric mesenchyme in the neural plate which forms the cardiogenic region. Two endocardial tubes form here that fuse to form a primitive heart tube known as the tubular heart. [37] Between the third and fourth week, the heart tube lengthens, and begins to fold to form an S-shape within the pericardium.
Luckenbooth brooch. A Luckenbooth brooch is a Scottish heart-shaped brooch. These brooches often have a crown above one heart, or two intertwined hearts. They are typically made of silver and may be engraved or set with stones. The name comes from the Luckenbooths of Edinburgh, where jewellery and trinkets used to be sold, including this type ...
The heart valves and the chambers are lined with endocardium. Heart valves separate the atria from the ventricles, or the ventricles from a blood vessel. Heart valves are situated around the fibrous rings of the cardiac skeleton. The valves incorporate flaps called leaflets or cusps, similar to a duckbill valve or flutter valve, which are ...
Description. Diagram of the human heart (cropped).svg. Diagram of the human heart, created by Wapcaplet in Sodipodi. Cropped by Yaddah to remove white space (this cropping is not the same as Wapcaplet's original crop). English: Diagram of the human heart.
The Journal of Heart and Lung Transplantation; The Journal of Thoracic and Cardiovascular Surgery; The Louis and Artur Lucian Award in Cardiovascular Diseases; Thrombosis Research; Trends in Cardiovascular Medicine; Vascular Health and Risk Management; Vibroacoustic disease; World Journal for Pediatric and Congenital Heart Surgery; Template ...
Summary. SVG illustration of the human heart, created by Wapcaplet in Sodipodi. Slightly modified for correct rendering by Yaddah (no changes to content). Cropped version withour white space available at File:Diagram of the human heart (cropped).svg Uploaded on 24 Dec 2003. The SVG code is valid.
The cardiac conduction system (CCS, also called the electrical conduction system of the heart) [1] transmits the signals generated by the sinoatrial node – the heart 's pacemaker, to cause the heart muscle to contract, and pump blood through the body's circulatory system. The pacemaking signal travels through the right atrium to the ...
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