Because it is oxygenated blood
When the blood is oxygenated it means that the iron atom (hemoglobin) of erythrocytes has carried the oxygen. The hemoglobin combined with oxygen gives red color to the blood.
Some animals has another atom in blood which is able to bind to oxygen for example octopus blood contains copper which binds to oxygen and it gives the blood a blue color.
See related link for more detail.
Oxygenated blood is bright red, and would only come out of an artery. It will look strikingly different from venous blood which is darker, and what you would generally see if you had a superficial cut.
The oxygenated blood first enters the left atrium
the blood is bright red because of the oxygen from the air
When blood that is rich in oxygen re enters the heart, the blood enters through the pulmonary valve. The pulmonary valve brings the oxygen rich blood to the pulmonary trunk of the pulmonary artery.
Heart .
when blood enters the heart its a bright cherry red colour when it leaves its a dull red/ brown colour hope this helps :) x
Bright cherry red is the normal systemic arterial blood color
De-oxygenated blood is dark red. Oxygenated blood is bright red. Both enter the heart- the former enters the right heart; the latter enters the left heart.
crimson blood cherry candy apple China
Blood that leaves the pulmonary alveoli are fully oxygenated whereas the blood entering them are partially deoxygenated.
Blood Red Cherry was created in 2000.
Oxygen enters the blood in the alveoli of the lungs
as the blood enters it collects oxeyen, vitamins , minerals waste and sugars .
oxigen is the gas that enters the blood through the lungs
Blood is Bright was created on 2006-01-01.
Arterial Blood is Bright Red
The blood pressure is usually high when blood leaves the small arteries and enters the capillaries.