the gills
The cardiovascular system circulates blood through the body.
William Harvey
In the blood - which circulates all around the body through a network of arteries and veins.
The Heat is the pump that circulates blood through the body.
Blood circulates through the human body at an average speed of about 3.5 miles per hour.
it circulates through the body after the the muscles contract
The cardiovascular system sends oxygen rich blood through out the body.
On average, a person's blood circulates through their body about 1,000 times in a week. This means that the blood travels through the entire circulatory system multiple times each day to deliver oxygen and nutrients to cells and remove waste products.
It is oxygenated as it passes through the lungs. The rest of the body deoxygenates it.
Blood, gets its colour from the pigments of its various components.
As it gives out oxegen it looses the bright red
It turns from oxygenated blood to deoxygenated blood. The tissues absorb the oxygen that your red blood cells carry through diffusion through the capillary membranes. When the oxygen is gone, the blood is considered "deoxygenated."