aint it supposed to be blue.....
2007-07-01 06:12:06 · 16 answers · asked by L3ZBiiAN SW33TZ 2 in Science & Mathematics ➔ Earth Sciences & Geology
Yes, it is true that blood appears blue if you look at your veins, however, it is also red. Your body has oxygenated blood and deoxygenated blood. Oxygenated blood is red (might be the purple-colored veins in body). Blood cells contain hemoglobin (Hb), an oxygen-carrying substance. Also present in blood is carbamino hemoglobin, a substance that acts as a buffer between carbon dioxide and oxygen to regulate blood pH, which should always stay around 6.4 - 7.4 . Oygenated blood travels through the body via the left ventricle , on the left side of the heart. Oxygenated blood travels to the heart from the lungs via the left atrium. Deoxygenated blood appears blue (look at veins), and it travels from the heart to the lungs via the right ventricle and pulmonary artery.
Hope this helps!
2007-07-01 07:29:38 · answer #1 · answered by allstargurl522 3 · 0⤊ 0⤋
Red Blood cells
2016-05-20 02:21:00 · answer #2 · answered by Anonymous · 0⤊ 0⤋
As said, haemoglobin holding oxygen gives blood the red colour. Blood depleted of oxygen has a bluish tinge. Really blue blood especially in an infant can be a sign of methaemoglobinaemia or so-called blue baby syndrome caused by too high nitrates in water fed to the infant. Some drugs also change the colour of blood as recently reported when they found black blood in a guy when they operated on him. Caused by one of the drugs he was on and all was OK and red again a few weeks later.
2007-07-01 06:33:37 · answer #3 · answered by oldhombre 6 · 0⤊ 0⤋
Blood is red due the hemoglobin in the blood cell that is carrying oxygen. In traveling through the body the oxygen is distributed to maintain life. By the time the blood returns to the lungs the blood does have a bluish appearance..Changes back to red as oxygen is readded by the lung function
2007-07-01 06:22:02 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Your blood is red because it changes colors when oxygen get in to it. So when you cut your self your letting oxygen into your blood which makes it red. Otherwise it's suppose to be blue.
2007-07-01 07:43:17 · answer #5 · answered by Nimali F 5 · 0⤊ 0⤋
Blood is red because it contains red blood cells (which have hemoglobin-an iron containing protein). The blood that may look blue through the skin is deoxygenated, it is dark red, but the color we see changes because of the layers of the skin, the veins and optical effects.
2007-07-01 06:29:06 · answer #6 · answered by Ladyoasis 5 · 1⤊ 0⤋
Yes your correct it is blue thats why our vains are blue because there carrying blood around the body but when it hits carbon dioxide it expands and contrasts making the colour red.It is quite intresting really
2007-07-01 07:45:20 · answer #7 · answered by Anonymous · 0⤊ 0⤋
HUMAN blood is red. its red due to the presence of an oxygen-carrying compound called haemogloblin.
in insects like COCKROACH, the blood is white/pale yellow as there is no haemoglobin. oxygen is carried by the process of diffusion.
2007-07-01 06:26:09 · answer #8 · answered by ishita s 2 · 1⤊ 0⤋
blood is blue but when exposed to air it makes it be red
2007-07-01 10:31:13 · answer #9 · answered by sebastian s 1 · 0⤊ 0⤋
i dont know y u say it aut to be blue but its red cause it has an oxygen carrying compound - haemoglobin which makes it red
2007-07-01 06:18:15 · answer #10 · answered by Ξlectronegative™дtif® 2 · 0⤊ 0⤋