How the circulatory system works. The heart lies at the center of the circulatory system and pumps blood through the rest of the network. This hollow muscle is made up of four chambers: The left ...

The system's main function is to transport blood, nutrients, gases and hormones to and from the cells throughout the body. Here are 11 fun, interesting and perhaps surprising facts about the ...

Learn about the anatomy of the heart and how its chambers, valves, and vessels work together to maintain effective blood circulation throughout the body to sustain life.

The circulatory system consists of one heart, five liters of blood, and approximately 96,000 kilometers of blood vessels, responsible for transporting nutrients and waste throughout the body.

What is the circulatory system? The circulatory system is essentially the body infrastructure, providing the route ways for the blood to transport oxygen, nutrients and hormones to and from the cells ...

General comments As we introduced this new topic last week, we mentioned that the blood circulatory system comprises the blood itself (red cells, white. Submit. Subscribe for just 30¢ a day; ...

Poor circulation occurs when the circulatory system cannot pump blood effectively to all parts of the body. This causes a drop in blood, oxygen, and nutrient delivery to affected areas.

This shows in vivo-imaging of the blood circulation system in a three-day-old zebrafish larva. The left picture shows a side view of the head, the middle picture a side view of the trunk and the ...

Stroke, one of the leading causes of death worldwide, is normally caused by poor blood flow to the brain, or cerebral ischemia. This condition must be diagnosed within the first few hours of the ...

The circulatory system includes the heart and blood vessels, which are responsible for carrying blood around the body. Poor circulation occurs when something disrupts ... Terry Vine/Getty Images.