It comes from an artery. Arteries carry OXYGENATED blood away from heart. This oxygenated blood is bright red. The Arterial system is on the high pressure side of the heart. The pressure changes as the heart contracts and then expands and refills (a heartbeat). When an artery is punctured the blood will spurt with every heartbeat.
Because arteries are blood vessels that carry blood away from the heart. There are many arteries that carry blood to all parts of the body. And how dangerous a severed artery is depends on how deep the cut is and what artery is cut.
artery
If an artery is cut while you have a fast heartbeat it will flow similar to that. However it does not look like what you see in the movies.
O negative
This would be arterial bleeding - bright red pertains to oxygen-rich blood and the squirting is because of the pressure from the heart. Venous blood will appear dark, and oxygenated blood from the arteries will appear bright red in color.
It is bright red.
There is no simple method of observation for vein or atery bleeding. A safe assuming however, is if there is profuse amount at an excessive rate of blood leaving the victim's body they have a severed artery. If this is the case, they will likely die before an ambulance arrives. In either situation, pressure should be applied between the heart and the wound to slow the rate of blood loss.
Brain, artery's help pump blood to the heart which pumps it to the brain
Simple answer: Apply firm, direct pressure directly above the severed site. It will be extremely painful to the one with the injury. Because the femoral artery is among the larger blood vessels in the body, bleed-out will be quick. As with any arterial bleed, if the bleeding is not quickly controlled, certain death is almost inevitable.
Bright red blood is a sign of highly oxygenated blood. Pain, fast pulse rate and rapid respirations are generally the cause. Bright red blood is also a sign that an artery has been severed. Blood is red because it contains a chromophore (colored compound) called heme. The electronic structure of heme is such that it can reversibly bind certain other molecules, one of which is oxygen. The oxy-heme complex is bright red. If the blood came from an artery, it was probably already bright red. If it came from a vein, the heme will be a sort of dark purplish-red, but as soon as it hits the oxygen in the atmosphere, it will bind and form the bright red oxy-heme complex, so regardless of where you cut yourself, the blood is going to be bright red. When you give blood at a blood bank, the blood is drawn from a vein, and flows into a bag which keeps the oxygen out. This blood will be the dark purplish-red color of the deoxygenated heme.
When drawing blood from an artery, there are two indicators that the artery has been punctured. When using a butterfly, the flash of blood that appears in the tubing will be pulsing. Also, arterial punctures produce very bright red blood.
its bright red because it passes by the lungs wich oxygenates it