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

Respiratory System: Functions and Organs

https://www.webmd.com/lung/how-we-breathe

The respiratory system is made up of organs and other parts of the body involved in breathing when you…

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Do veins have valves?
Most veins have valves that open and close. The valves control blood flow and keep your blood flowing in one direction. About 75% of your blood is in your veins.

Blood Vessels: Types, Anatomy, Function & Conditions

https://my.clevelandclinic.org/health/body/21640-blood-vessels

Blood vessels carry…

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Two Types of Veins
1. Pulmonary veins. The pulmonary circuit carries deoxygenated blood from your heart to your lungs.
2. 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.

Venous System: Vein Anatomy and Function, Vein…

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Are veins bigger than arteries?
Veins are smaller than arteries. Arteries are thicker and stretchier to be able to handle the higher pressure of blood moving through them. Your veins are thinner and less stretchy.

Arteries vs. Veins: What’s the Difference?

https://www.webmd.com/heart/difference-between-arteries-and-veins

F…

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Veins are thinner than arteries because the pressure in veins is so much lower. Veins can widen (dilate) as the amount of fluid in them increases.

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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 and provide oxygenated blood to the body. Furthermore, they also deliver deoxygenated blood back for purification.

Veins & Arteries Similarities And Differences – Top Varicose Vein Treatment…

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1. Arteries carry blood away from the heart to various parts of the body. Veins carry blood towards the heart from the various parts of the body.
2. Arteries are involved in carrying oxygenated blood except for pulmonary arteries. Veins are volved in carrying deoxygenated blood except for pulmonary veins.
3. Arteries are located deep within the…[Read more]

Food is broken down by the digestive system to give energy to every cell in the body. The digestive system converts the foods we eat into their simplest forms, like glucose (sugars), amino acids (that make up protein) or fatty acids (that make up fats).

Digestive system explained – Better Health…

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The nervous system is the major controlling, regulatory, and communicating system in the body. It is the center of all mental activity including thought, learning, and memory.

The term “arrhythmia” refers to any problem in the rate or rhythm of a person’s heartbeat. During an arrhythmia, the electrical impulses may be too fast, too slow or erratic, causing an irregular heartbeat.

What is an Arrhythmia? | American Heart Assoc…

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High blood pressure, or hypertension, occurs when the force of blood pushing through your vessels is consistently too high. Hypertension may be primary, which may develop as a result of a variety of environmental or genetic causes, or it may be secondary to renal, vascular, and endocrine causes.