Any of the branching blood vessels that form a network between the arteries and veins
they are called capillaries
The capillaries serve as the bridge between arteries and veins where the exchange of chemical substances inside the body occurs.
the little tubes that carries blood between the arteries and veins are call capallaries is capillary
peripheral veins have valves to help get the blood back up to the heart but arteries do not because they have enough pressure from the pumping of the heart to get the blood out to the body.
The lymphatic system is responsible for reclaiming fluid and proteins that have escaped from blood capillaries. Lymphatic vessels collect this excess fluid, known as lymph, and return it to the bloodstream to maintain fluid balance in the body. The lymph nodes also play a role in filtering out harmful substances and producing immune cells to help fight infection.
the nose should not bleed if the back (occipital region) of the head is struck. If this occurs after a blow to the rear of the head, it could indicate a more serious, internal injury may have occurred (possibly a skull fracture). If the individual lost consciousness during the event, that too is an indication that there could be more serious internal injuries. The nose usually bleeds after a direct blow, dried mucous membranes, or in some circumstances high blood pressure.
The organs involved in the cardiovascular system are the lungs, the heart and the brain. Without any one of those organs working properly you can die or live poorly. The blood vessels are the roadways for the blood to travel through out the body but are not to be confused with organs. They are tubes that do a fantastic job but not organs as some people believe. The trachea is the windpipe not an organ as some have mistaken also.