What Makes Up the Human Vascular System?
Blood vessels are a series of pipes through which blood flows. Except for the cornea , hair, fingernails, dentin and epithelium, blood vessels are spread all over the body. Blood vessels are divided into arterial vessels, venous vessels and capillaries according to their structural functions.
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- Blood vessels are a series of pipes through which blood flows. except
- Arterial origin
- Vein is
- Capillary is the thinnest in diameter, with an average of about 6-9
- Blood vessels are the channels through which blood flows, divided into arteries, veins, and capillaries. The arteries originate from the heart, branching continuously, the caliber becomes thinner, the tube
- Except for the arteries-capillaries-veins, the blood vessels of the human body communicate between arteries and arteries, between veins and veins, and even between arteries and veins.
- Explanation of "angiogenesis" in academic literature:
- 1. Angiogenesis refers to the proliferation and migration of endothelial cells, and new blood vessels are generated by budding or nesting from the existing blood vessels, which are regulated by a series of stimulating and inhibitory factors.
- Blood vessel