Articles
Arteries
The Cleveland Clinic page explains arteries as blood vessels carrying oxygen-rich blood from the heart to the body. It details their structure, including elastic and muscular arteries, and differences from veins. It also covers their function, conditions affecting them (e.g., atherosclerosis, aneurysms), symptoms of disorders, and treatments like medications and surgeries. Arteries play a vital role in delivering oxygen and nutrients to organs and tissues. For more, visit the full page here:
https://my.clevelandclinic.org/health/body/22896-arteries

Veins
The Cleveland Clinic page explains veins as blood vessels that return oxygen-poor blood to the heart, except for pulmonary veins that carry oxygen-rich blood from the lungs. It covers vein anatomy, types (deep, superficial, and perforating), their role in the circulatory system, and common conditions like varicose veins and deep vein thrombosis. Veins also have valves to ensure blood flows correctly, especially in the legs. For more detailed information, visit the page:
https://my.clevelandclinic.org/health/body/23360-veins

Capillaries
The Cleveland Clinic page explains capillaries as the smallest blood vessels, connecting arteries and veins. Their thin walls enable the exchange of oxygen, nutrients, carbon dioxide, and waste between blood and tissues. It also outlines capillary types (continuous, fenestrated, sinusoidal), their functions across organs, and conditions affecting them, like capillary leaks or malformations. Tests and treatments for capillary-related issues are also discussed. For more information, visit the page:
https://my.clevelandclinic.org/health/body/21988-capillaries

Blood Flow (Velocity, pressure, total surface area etc.)
The Lumen Learning page explains the relationship between blood flow, blood pressure, and resistance in the circulatory system. It discusses factors like systolic and diastolic pressure, pulse pressure, mean arterial pressure, and variables that affect arterial and venous blood flow. The page also details how blood pressure is measured and the physiological implications of abnormal values, including conditions like ischemia and hypoxia. For further details, visit the page:

Videos
The Crash Course episode on blood vessels and circulation discusses:
– The three-layer structure of blood vessels and differences between types.
– Blood flow from the heart to capillaries and back.
– The relationship between blood flow, resistance, and pressure.
– Short-term responses to high blood pressure (neural, hormonal, and kidney).
– Dangers of chronic high blood pressure.
Part1
Part2