{"type":"video","version":"1.0","html":"<iframe src=\"https://www.loom.com/embed/3ec215800381455b91ad481c223a001b\" frameborder=\"0\" width=\"1662\" height=\"1246\" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>","height":1246,"width":1662,"provider_name":"Loom","provider_url":"https://www.loom.com","thumbnail_height":1246,"thumbnail_width":1662,"thumbnail_url":"https://cdn.loom.com/sessions/thumbnails/3ec215800381455b91ad481c223a001b-af3dbf679e4fab4f.gif","duration":2384.411,"title":"Blood Vessel Anatomy and Wall Structure Overview","description":"This Loom explains blood vessel anatomy and how blood flows through vessel types. It reviews that arteries carry blood away from the heart, veins carry blood toward the heart, and capillaries are where oxygen and carbon dioxide exchange occurs, with the flow sequence arteries to arterioles to capillaries to venules to veins. The speaker details vessel wall structure using the tunica intima, tunica media, and tunica externa, including roles of endothelium, smooth muscle, elastic fibers, vasoconstriction and vasodilation, and supporting supplies like vasovasorum and nervi vasorum. It also covers capillary types and capillary beds, including continuous, fenestrated, and sinusoid capillaries, plus pre-capillary sphincters for directing blood flow; a section on disorders like atherosclerosis, aneurysms, and DVT is included briefly."}