Chickens have circulatory systems that include a heart and blood vessels of various sizes, much like other animals. The heart pumps the blood, and it circulates through blood vessels.
it needs to
They circulate and oxygenate the blood.
circulate blood
how does the blood circulate Put simply the heart is a pump, I don't know much more about it than that.
It takes about 1 minute for the heart to circulate blood through the entire body.
heart contractions
The blood vessels of an embryo are connected to both the heart (internally) and the umbilical cord (externally). The heart beats and helps circulate the blood to some degree but mostly it is the heart of the mother that helps circulate the blood to and from the embryo.
no, the heart is just a pump to circulate blood. it performs no other operation
It takes about 20-30 seconds for blood to circulate through the body before returning to the heart.
Circulate the blood. composed of the heart, arteries and viens.
It is a continuous process.