No your blood is not red until it hits oxygen, that is why your veins are not red.
The above answer is incorrect. All blood is red but blood with oxygen is brighter red and blood lower in oxygen is darker red. All veins do not carry blood low in oxygen. Most do but not ones coming to the heart from the lungs.
Your blood is bright red in the artery and dark red in veins. You do not have [ blue blood ] . It only appears blue because the veins which are white are are carrying dark red blood and being viewed through the skin which difuses the light and makes them appear blue. that is partly true but I have herd from all my teachers that your blood is blue in the arteries. Which when you get cut the air puts oxygen in the blood stream that makes the blood turn red. answer #2 The statement that blood is blue inside the body and turns red when in contact with blood makes little sense. How can this be so when blood itself is used to transport oxygen throughout the body? It is not possible for blood to be blue inside the body as well as carry out one of it's main functions. Answer#3 Actually blood is red in the arteries and blue in the vein. Blood in the artery has already combined with oxygen whereas blood in the vein has yet to receive oxygen. So in fact there is both red and blue blood. When a vein is cut open it hits oxygen in the air causing it to turn red. Answer#4 The protein hemoglobin, which carries oxygen in the blood, changes shape when it binds oxygen. When it changes shape, it absorbs different wavelengths of light, making it change color. When blood is exposed to air, much more of the hemoglobin absorbs oxygen than had in the vein the blood came from (in the veins, the hemoglobin has already given up most of its oxygen to the body). Therefore, the blood turns red. This also means that blood in the body, once it has been oxygenated, is also red, though much more so when it reaches open air. I think it would be a fun experiment to put your hand in a vacuum chamber with a tight seal around your wrist and prick your finger to see the difference in blood color.
Earthworms have blood and it is enclosed in a network of tubes much like the blood system of mammals. It is red because it contains the oxygen carrying pigment hemoglobin. Unlike mammals, where the hemoglobin is inside red blood cells, earthworm hemoglobin is just mixed in the liquid of the blood, commonly called hemolymph. Earthworms pump their blood around the body with the help of 5 specialized blood vessels that contract and expand. They are the worm's hearts.
Blood is not carried to the heart. The heart is where all the red blood cells are made. The heart pumps blood that is made directly inside the heard or the second layer of the bones which feels like a sponge.
arteries are red. veins are blue to whoever said the opposite.
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."
its inside our body
inside the body blue outside the body red
Inside the red blood cells
It doesn't need to get inside the body, erythrocytes are produced inside the body by your bone marrow (red) and are made constantly. If however one needed more red blood cells, it would be via a blood transfusion.
White blood cells and red blood cells.
blood is red blood cells that help your body flush out the bad stuff. blood is blue when its inside you and when it mixes with oxegn it turns red.
Frequently the answer is "blood is blue inside us and red when it hits the air". Blood carries oxygen in our body so this really doesn't make sense. Blood is red with arterial blood being brighter and venous blood being darker. Our blood vessels have a bluish appearance through our skin but just as water going through PVC piping isn't white, blood isn't blue.
Red blood cells at work. Hemoglobin is the protein inside red blood cells that carries oxygen. Red blood cells also remove carbon dioxide from your body, transporting it to the lungs for you to exhale. Red blood cells are made inside your bones, in the bone marrow.
its blue/dark red blood before it turns fire engine red by oxygen not black.
You have hemoglobin in red blood cells. They are 'inside' the capillaries.
Inside your body, blood is blue. Therefore your arteries and veins appear blue through the skin. Your blood turns red outside of the body because oxygen gets into the blood. The oxygen changes your blood's color from blue to red.
Hemolytic is when red blood cells are broken down inside the body. The spleen is generally an organ that does this in the human body. Its function is to break down the red blood cells and making hemoglobin.