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The heart is a muscular organ found in humans and other animals. This organ pumps blood through the blood vessels. [1] Heart and blood vessels together make the circulatory system. [2] The pumped blood carries oxygen and nutrients to the tissue, while carrying metabolic waste such as carbon dioxide to the lungs. [3]
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 ...
The earliest heart-shaped charges in heraldry appear in the 12th century; the hearts in the coat of arms of Denmark go back to the royal banner of the kings of Denmark, in turn based on a seal used as early as the 1190s. However, while the charges are clearly heart-shaped, they did not depict hearts in origin, or symbolize any idea related to love.
The heart tube continues stretching and by day 23, in a process called morphogenesis, cardiac looping begins. The cephalic portion curves in a frontal clockwise direction. The atrial portion starts moving in a cephalically and then moves to the left from its original position. This curved shape approaches the heart and finishes its growth on ...
Finger heart is a hand gesture in which the subject has a palm up fist, raises their index finger and brings their thumb over it so as to form a small heart shape. It signals a similar gesture to that of the two-handed heart. It originates from South Korean culture and was used by athletes during the Pyeongchang 2018 Olympic Games. [18]
The combined male-female symbol (⚥) is used to represent androgyne people; [17] when additionally combined with the female (♀) and male (♂) symbols (⚧) it indicates gender inclusivity, [citation needed] though it is also used as a transgender symbol. [18] [19] [17] The male-with-stroke symbol (⚦) is used for transgender people. [17]