The circulatory system is composed of the heart and blood vessels, including arteries, veins, and capillaries. ... As a hollow, muscular pump, its main function is to propel blood throughout the body.
The circulatory system is defined as the system that moves blood, oxygen and nutrients through the body. An example of the circulatory system is the functioning of the human heart, blood and blood vessels. YourDictionary definition and usage example.
Circulatory System. The heart beats around 3 billion times in the averages person's life. About 8 million blood cells die in the human body every second, and the same number are born each second. Within a tiny droplet of blood, there are some 5 million red blood cells.
The circulatory system consists of three independent systems that work together: the heart (cardiovascular), lungs (pulmonary), and arteries, veins, coronary and portal vessels (systemic). The system is responsible for the flow of blood, nutrients, oxygen and other gases, and as well as hormones to and from cells.Mar 1, 2013
The Circulatory System is made up of three main parts: The heart, the blood vessels and the blood. Sometimes the watery fluid called lymph and the vessels that carry it are considered to be part of the Circulatory System. The heart is a special pump that pumps the blood around the body.
The heart - the muscle which pumps the blood around the body.Arteries - bring blood away from the heart.Capillaries - connect arteries with veins.Veins - bring blood to the heart.Blood - transports hormones, nutrients, heat, and oxygen around the body.
The cardiovascular system consists of the heart, blood vessels, and blood. This system has three main functions: Transport of nutrients, oxygen, and hormones to cells throughout the body and removal of metabolic wastes (carbon dioxide, nitrogenous wastes).
The Heart. The heart is the key organ in the circulatory system. As a hollow, muscular pump, its main function is to propel blood throughout the body. It usually beats from 60 to 100 times per minute, but can go much faster when it needs to.
All cells in the body need to have oxygen and nutrients, and they need their wastes removed. These are the main roles of the circulatory system. The heart, blood and blood vessels work together to service the cells of the body.