Closed Circulatory System
Big horn sheep have a closed circulatory system like all other vertebrates. This means that the blood stays within the heart and blood vessels at all times. In open circulatory systems, blood is free within the animal's body cavity.
The Blood Stays on the Blade was created on 2008-05-12.
Humans have a closed circulatory system, in which blood is pumped by the heart through dedicated vessels, where it stays contained, as opposed to an open circulatory system (usually found in invertebrates) where blood is pumped out of the heart and vessels.
Mammals and most vertebrates have a closed circulatory system in which the blood stays in the blood vessels and recirculates. In an open circulatory system the hemolymph is pumped out by the heart, but perfuses the entire body cavity.
No, whatever blood your born with stays with you.
A humans circulatory system is closed. Large creatures tend to have a closed system, while smaller creatures like insects and crustaceans have open circulatory systems. Closed is when there are vessels and the blood stays there. Open is when blood floats around the body. Hope it helps:)
A fixed blood clot is called an embolus.
Viagra have some serious side effects incl heart attacks so I would stay to the prescription if I were you. What can happen is that the erection wont go down which is dangerous for the penis's blood vessels. The doctor will give you something for the pain and then insert a needle to let the blood out so the erection goes down. if it stays up the blood vessels can be damaged for life.
It stays in the blood and the person who contacts it can not give blood.
72 hrs.
yes they can because the ink of the tatoo stays i in the skin and not the blood stream
because your body tries to reduce heat loss to the surroundings so the blood vessels constrict so the blood stays at the core of the body rather than reach the skin where heat will easily be lost to the surroundings.