Understanding Blood Vessels and Their Role in the Body
Blood vessels are a crucial part of the circulatory system, comprising arteries, veins, and capillaries. Arteries carry oxygenated blood away from the heart, veins transport deoxygenated blood back to the heart with the help of valves, and capillaries act as connectors between arteries and veins, facilitating the exchange of oxygen and nutrients at the cellular level. This informative content provides a comprehensive overview of the functions and characteristics of each type of blood vessel.
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Presentation Transcript
What are blood vessels? Blood vessels are a network of tubes that carry blood throughout the entire body. There are 3 types of Blood Vessels: 1. Arteries 2. Veins 3. Capillaries
Arteries The vessels that carry the blood away from the heart are called arteries. They carry oxygenated blood
Veins Veins carry blood towards the heart They carry blood that is de-oxygenated They have valves that stop the backflow of blood
Capillaries Capillaries connect the arteries and veins They carry both oxygenated and deoxygenated blood They are in close contact with cells
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