Blood flowing through the circulatory system transports nutrients, oxygen, and water to cells throughout the body. The journey might begin and end with the heart, but the blood vessels reach every vital spot along the way.

2024年9月4日 · Your circulatory system (cardiovascular system) includes your heart and blood vessels. Your heart pumps oxygen-rich blood after your lungs add oxygen to your blood.

2021年9月21日 · Your circulatory system functions with the help of blood vessels that include arteries, veins and capillaries. These blood vessels work with your heart and lungs to continuously circulate blood through your body.

Blood vessels are channels that carry blood throughout your body. They form a closed loop, like a circuit, that begins and ends at your heart. Together, your heart and blood vessels form your circulatory system. Your body contains about 60,000 miles of blood vessels.

2023年11月21日 · The blood circulatory system (cardiovascular system) delivers nutrients and oxygen to all cells in the body. It consists of the heart and the blood vessels running through the entire body. The arteries carry blood away from the heart; the veins carry it back to the heart.

2023年9月12日 · Also commonly known as the cardiovascular system, is a network composed of the heart as a centralised pump, blood vessels that distribute blood throughout the body, and the blood itself, for transportation of different substances.

5 天之前 · Learn all about the heart, blood vessels, and composition of blood itself with our 3D models and explanations of cardiovascular system anatomy and physiology. The cardiovascular system consists of the heart, blood vessels, and the approximately 5 liters of blood that the blood vessels transport.

2021年1月15日 · In birds and mammals, the primary organ of the cardiovascular system is a four-chambered heart with its associated blood vessels. In other vertebrates, the heart can have either two or three chambers. Many invertebrates have an open circulatory system where blood (also known as hemolymph) bathes the cells and organs directly.

2023年8月8日 · The walls of large blood vessels, like the aorta and the vena cava, are supplied with blood by vasa vasorum. This term translates to mean "vessel of a vessel." Three types of vasa vasorum exist (1) vasa vasorum internae, (2) vasa vasorum externae, and (3) …

The heart is a complex muscle that pumps blood through the three divisions of the circulatory system: the coronary (vessels that serve the heart), pulmonary (heart and lungs), and systemic (systems of the body), as shown in Figure 6.10. ... of a thick muscle layer, called the myocardium, surrounded by membranes. One-way valves separate the four ...