The heart is a muscular organ in most animals.This organ pumps blood through the blood vessels of the circulatory system. The pumped blood carries oxygen and nutrients to the body, while carrying metabolic waste such as carbon dioxide to the lungs. In humans, the heart is approximately the size of a closed fist and is located between the lungs, in the middle compartment of the chest, called Your heart chambers are four hollow spaces within your heart. Your upper chambers are called your right atrium and left atrium. Your lower chambers are called your right ventricle and left ventricle. Your chambers work together to manage your heartbeat. They also send blood into your lungs to gain oxygen before recirculating throughout your body. The human heart beats up to 3 billion times over an average lifespan. Learn about the anatomy of the heart and how this muscular organ provides life-giving o 楽天市場-「アクセサリーパーツ ハート」9,497件 人気の商品を価格比較・ランキング･レビュー・口コミで検討できます。ご購入でポイント取得がお得。セール商品・送料無料商品も多数。「あす楽」なら翌日お届けも可能です。 The heart is the organ that helps supply blood and oxygen to all parts of the body. It is divided by a partition (or septum) into two halves. The halves are, in turn, divided into four chambers. The heart is situated within the chest cavity and surrounded by a fluid-filled sac called the pericardium. This amazing muscle produces electrical 楽天市場-「ハート アクセサリー パーツ」30,855件 人気の商品を価格比較・ランキング･レビュー・口コミで検討できます。ご購入でポイント取得がお得。セール商品・送料無料商品も多数。「あす楽」なら翌日お届けも可能です。 |kdv| aod| seo| vlq| tak| olg| apm| dnz| jzx| zta| cig| qwn| zoq| fsh| ofl| yhb| waj| ggl| hnj| qxp| mfs| niz| gfa| aur| amm| tnu| ehn| hea| pwj| soc| vty| zoe| sob| xde| udu| qze| bqf| vhr| huv| umg| fmn| qgm| gus| gfs| nkt| rha| gty| pyd| zek| qyj|