资讯

Human Respiratory System anatomical vector illustration, medical education cross section diagram with nasal cavity, throat, esophagus, trachea, lungs and alveoli. human body circulatory system stock ...
There are many different circulatory system diseases, all of which interrupt the complex process of distributing blood around the body. Examples include atherosclerosis, heart attack, and arrhythmia.
Laid end-to-end, an adult's arteries, veins and capillaries would stretch for about 100,000 miles - enough to wrap around the world nearly four times. Each 2.54 square centimetre (a square inch) of ...
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 carbon dioxide from all the tissues in ...
If you enjoyed this article, I’d like to ask for your support. Scientific American has served as an advocate for science and industry for 180 years, and right now may be the most critical moment in ...
What is the vascular system? The vascular system is made up of the vessels that carry blood and lymph fluid through the body. It's also called the circulatory system. The arteries and veins carry ...
Arteries carry oxygenated blood away from your heart. They have thick walls and a muscular layer that keeps your blood moving. Arteries can be as wide as a nickel (about two centimeters). They are the ...
Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Robert Kelly is managing director of XTS ...
Swimming can offer several physical and mental health benefits, such as supporting your heart and lungs and reducing anxiety. Share on Pinterest Rob and Julia Campbell/Stocksy United Swimming is an ...