The heart is part of the cardiovascular system and works like a pump to move blood throughout the body. The cardiovascular system also consists of the veins, arteries and capillaries that route blood throughout the body, according to WebMD.
The job of the cardiovascular system is to deliver nutrients and oxygen to every cell in the body. It is also responsible for removing wastes, such as carbon dioxide, from the body. The arteries move oxygen-dense blood from the heart to the body, while the veins move oxygen-poor blood back into the heart. According to the Texas Heart Institute, if all the vessels in the cardiovascular system were stretched out with their ends touching, they would circle the planet more than two times.Learn More
Exhaled air is comprised of approximately 4 to 5 percent less oxygen than was inhaled. The exchange of gases takes place in the alveoli within the lungs in a process called diffusion.Full Answer >
According to Dartmouth's online textbook, "Basic Human Anatomy," the superior orbital fissure is a cleft in the bones of the skull located within the hollows (or orbits) of the eye. Several important nerves pass through this cleft. It is larger and higher than the inferior orbital fissure.Full Answer >
According to WebMD, the bladder is a hollow, muscular sac that stores urine. About the size and shape of a pear, the bladder receives urine from the ureters and expels it through the urethra. While the kidneys filter blood constantly, and therefore produce urine on a continual basis, the urinary bladder stores the urine so that urination can take place periodically instead of being a constant activity.Full Answer >
The skin excretes sweat and dead cells from the body, according to the Franklin Institute. Sweating and dead cell excretion through the skin is a function of the integumentary system, which supports the excretory system.Full Answer >