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  2. Circulatory system - Wikipedia

    en.wikipedia.org/wiki/Circulatory_system

    In vertebrates, the circulatory system is a system of organs that includes the heart, blood vessels, and blood which is circulated throughout the body. [1] [2] It includes the cardiovascular system, or vascular system, that consists of the heart and blood vessels (from Greek kardia meaning heart, and Latin vascula meaning vessels).

  3. Blood vessel - Wikipedia

    en.wikipedia.org/wiki/Blood_vessel

    Anastomoses provide alternative routes for blood to flow through in case of blockages. Veins can have valves that prevent the backflow of the blood that was being pumped against gravity by the surrounding muscles. [8] In humans, arteries do not have valves except for the two 'arteries' that originate from the heart's ventricles. [9]

  4. Artery - Wikipedia

    en.wikipedia.org/wiki/Artery

    The anatomy of arteries can be separated into gross anatomy, at the macroscopic level, and microanatomy, which must be studied with a microscope.The arterial system of the human body is divided into systemic arteries, carrying blood from the heart to the whole body, and pulmonary arteries, carrying deoxygenated blood from the heart to the lungs.

  5. The 5 Best Drinks if You're Taking Weight Loss ... - AOL

    www.aol.com/lifestyle/5-best-drinks-youre-taking...

    Hydration needs vary based on individual factors, but most people should aim for at least eight 8-ounce glasses of water daily, adjusted according to your needs.

  6. Where are mandatory evacuation orders for California ... - AOL

    www.aol.com/where-mandatory-evacuation-orders...

    Corrections & clarifications: This story has been updated to reflect the areas under evacuation for the Palisades Fire. Editor's Note: The wildfires in California continue to rage.

  7. After a long lull, Covid-19 levels are surging in the US - AOL

    www.aol.com/long-lull-covid-19-levels-113003941.html

    From December 8 to 21, XEC accounted for 45% of new cases, up from 15% of cases two months earlier. Variants are expected as “gradual changes to the virus, known as mutations, ...

  8. File:Heart diagram blood flow en.svg - Wikipedia

    en.wikipedia.org/wiki/File:Heart_diagram_blood...

    You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.

  9. Capillary - Wikipedia

    en.wikipedia.org/wiki/Capillary

    Marcello Malpighi was the first to observe directly and correctly describe capillaries, discovering them in a frog's lung 8 years later, in 1661. [37] August Krogh discovered how capillaries provide nutrients to animal tissue. For his work he was awarded the 1920 Nobel Prize in Physiology or Medicine. [38]