Examlex
The velocity required to escape an astronomical body is known as the _______________.
Artery Wall
The layered structure of an artery, composed of an inner endothelium, a middle muscular layer, and an outer connective tissue.
Vasa Vasorum
Small vessels distributed to the outer and middle coats of larger blood vessels.
Arteries
Blood vessels that carry blood away from the heart to various parts of the body.
Veins
Blood vessels that carry blood towards the heart, typically carrying deoxygenated blood from the tissues back to the heart, except for pulmonary and umbilical veins.
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