could somebody please describe the structures and functions of the circulatory system

Question

somy · Answer

what do you already know about this topic?

cbarredo1 · Answer

Respiration - delivers oxygen to the cells and removing carbon dioxide from them
Nutrition - carries digested food substances to the cells of the body
Waste Removal -  disposes of waste products and poisons that would harm the body if they accumulated
Immunity - helps protect the body from disease
Cellular Communication - the circulatory system provides a mode of transport for hormones
Thermoregulation - the circulatory system transports heat (can both warm and cool body)
Heart - which is a muscular pump that contracts to propel blood out to the body through arteries, and a series of blood vessels.
The upper chamber of the heart, the atrium, is where the blood enters the heart.
Passing through a valve, blood enters the lower chamber, the ventricle.
Contraction of the ventricle forces blood from the heart through an artery.