The respiratory system is the organs and other parts of your body involved in breathing, when you exchange oxygen and carbon dioxide.

What are the two types of veins?
Systemic veins. The systemic circuit carries deoxygenated blood from the rest of the body back to your heart, where it then enters the pulmonary circuit for oxygen. Pulmonary veins. The pulmonary circuit carries deoxygenated blood from your heart to your lungs

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Are veins bigger than arteries?

No, veins are generally smaller than arteries. Your veins are thinner and less stretchy. This structure helps veins move higher amounts of blood over a longer time than arteries.

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Why are veins thinner than arteries?

Veins have thinner walls because it has lower pressure compared to the arteries.

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Arteries and veins form a part of the circulatory system of the body. Both these vessels maintain the flow of the blood. Arteries and veins consist of various layers of cells that maintain the structure.

Arteries carry oxygenated blood except for pulmonary arteries while veins carry deoxygenated blood except for pulmonary veins. Arteries have thicker walls compared to veins. In terms of location, arteries are located deep within the body while veins are located closer to the skin.

Your digestive system is a network of organs that is uniquely constructed to do its job of turning your food into the nutrients and energy you need to survive.

Heart arrhythmia refers to an irregular heartbeat. When the electrical signals that notifies the heart to beat isn’t working properly, arrhythmia occurs. This causes the heart to beat faster or slower than the normal pattern.