Arteries are blood vessels. Most carry oxygen-rich blood from the heart to various organs and tissues. Arteries are a part of the circulatory system, along with the heart and other blood vessels. The ...

How does the heart work? What does it do? What is it composed of? How do you examine it? This article offers cardiac anatomy and physiology in a nutshell. The heart is a complex organ that pumps blood ...

Your circulatory system works all day, every day, to pump oxygen throughout your body. There are cardiovascular conditions that can impact this system. Your circulatory system, also known as your ...

Your heart is an amazing organ. It continuously pumps oxygen and nutrient-rich blood throughout your body to sustain life. This fist-sized powerhouse beats (expands and contracts) 100,000 times per ...

The circulatory system is essential for the transfer of nutrients and oxygen to all cells of the body. The system consists of the heart and the blood vessels whose branches run throughout the body.

Reference Article: Facts about the human circulatory system. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. The circulatory system, also known ...

The Curious Crew gets pumped exploring the circulatory system! The Curious Crew gets pumped exploring the circulatory system! Dr. Rob uses balloon valves and tennis balls to explain how the heart ...

The human heart is a finely-tuned instrument that serves the whole body. It is a muscular organ around the size of a closed fist, and it sits in the chest, slightly to the left of center. The heart ...

The circulatory system is your heart and blood vessels, and it’s essential to keeping your body functioning. This finely tuned system carries oxygen, nutrients, electrolytes, and hormones throughout ...