2022年10月12日 · These observations may have led you to question the actual color of blood. So… is blood ever blue? Well, the quick answer is no, human blood is always red. But let us look at some blood basics as we dive deeper into this question. Blood basics. An adult human body holds about 5 liters of blood. Human blood is made up of about 55% plasma ...

2016年7月27日 · I have an alien in one of my stories that bleeds. I want to use science to determine what the range of possible colors would be. It's an oxygen breathing alien, so it's blood has to be efficient at transporting it. I know our blood is red because we use iron to …

2022年10月12日 · Because of experiences like this, most of us associate blood with the color red. We sometimes even use 'blood-red' to describe a bright reddish shade. Why then do many people wonder if blood is blue?You might have noticed that under skin of certain colors, some veins appear bluish-green. In many anatomy books, some veins are colored blue.

2015年1月31日 · Additionally, the color of blood in humans is primarily due to the oxidation state of iron in hemoglobin. In other organisms that use copper to transport oxygen, their blood may appear blue due to the oxidation state of copper. Further research is needed to confirm the color of oxygenated Erythrocruorin in earthworms.

2004年1月13日 · Blood color can be an indicator of an organism's health. In humans, a bright red color indicates a healthy level of oxygen, while a darker color may suggest anemia or other health issues. In insects, the color of their blood can also change based on their health status, such as when they are infected with a parasite or disease.

2010年3月20日 · For UV light: If one wants to use UV light to illuminate a blood pattern, this is more difficult. Blood under UV light absorbs light and does NOT glow. However, it is possible to visualize a blood pattern under UV light if the surrounding medium does fluoresce under UV lighting. Case in point is a bloody shoeprint I took a picture of under UV ...

2017年2月17日 · Just curious, anyone else ever notice BG is kinda related to how your blood looks? I noticed if my blood drop looks thicker and darker, BG is higher, if it's lighter and thinner BG is lower. (hands always washed and super dried with paper towels the same each time)

2006年2月2日 · The level of bilirubin in the blood is a useful diagnostic tool for kidney and liver diseases. and as Curious3141 said, In humans and other hemoglobin-using creatures, oxygenated blood is a bright red in color. Deoxygenated blood is a darker shade of red, which can be seen during blood donation and when venous blood samples are taken.

2023年5月31日 · In people with prediabetes, if you compare white people with Black people, Latinos, Asians, or Native Americans, all of whom have similar blood sugar levels, the A1C will be 0.4-0.5 percent higher for Blacks [and other people of color].” These inconsistencies are, he has written, an “ethnic conundrum.”

Color and label parts: ... red blood cell to leave and return to the heart is 30 seconds. Heart Anatomy ...