Dec 8, 2025 · The circulatory system is the network of tissues, blood vessels, lymph vessels, and supporting components that transports nutrients, respiratory gases, and metabolic products …

Sep 12, 2023 · The circulatory or cardiovascular system is composed of the heart, blood vessels and the blood. It delivers essential substances to the cells of the body.

Blood consists of plasma, red blood cells, white blood cells, and platelets. The digestive system also works with the circulatory system to provide the nutrients the system needs to keep the heart …

Your circulatory system moves 2,000 gallons of blood a day and more, depending on how active you are. Learn more about this important body system.

Apr 13, 2025 · There are three main types of blood vessels: arteries, veins, and capillaries. Arteries carry oxygen-rich blood away from the heart to the tissues. They are thick-walled and elastic, built to …

Oct 19, 2025 · The diagram is labeled with the main parts of the cardiovascular system: the heart, arteries, capillaries, and veins. The heart is a fist-sized organ in the chest that is responsible for …

The main components of the circulatory system are the heart, blood vessels, and blood. The heart pumps blood into two separate circuits that run simultaneously: the pulmonary circuit and the …

Dec 23, 2024 · The circulatory system relies on three types of blood vessels: arteries, veins, and capillaries. Each type is uniquely structured to perform specific functions.

It contains four chambers: two upper chambers called atria and two lower chambers called ventricles. The atria receive blood, while the ventricles pump blood out to the body. Blood vessels form an …

Dec 31, 2025 · There are 2 primary circulatory loops in the human body: the pulmonary circulation loop and the systemic circulation loop. Pulmonary circulation transports deoxygenated blood from the …