ScienceIQ.com

Why is Red-Green Colorblindness a 'Guy Thing?'

Colorblind girls and women are rare, while men who can't match their socks are relatively common. The reason is a genetic phenomenon called sex-linked inheritance. Humans have 23 pairs of chromosomes. One of those pairs, called X and Y, determines sex. Most females have 2 Xs. Most males have an X and a Y. The Y chromosome carries the genes that ...

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ColorBlindness
Astronomy

Is There Weather In Space?

Space weather occurs in the area between the Earth and the Sun and refers to the disturbances and storms that swirl through space, which could have adverse effects on human activities. These ... Continue reading

SpaceWeather
Physics

Nuclides & Isotopes

An atom that has an unbalanced ratio of neutrons to protons in the nucleus seeks to become more stable. The unbalanced or unstable atom tries to become more stable by changing the number of neutrons ... Continue reading

NuclidesIsotopes
Engineering

Bicycle Chain for Fleas

Sandia National Laboratories has engineered the world’s smallest chain. The distance between chain link centers is only 50 microns. In comparison, the diameter of a human hair is approximately 70 ... Continue reading

FleaBicycle
Astronomy

Near-Earth Supernovas

Supernovas near Earth are rare today, but during the Pliocene era of Australopithecus supernovas happened more often. Their source was an interstellar cloud called 'Sco-Cen' that was slowly gliding by ... Continue reading

Supernovas

The Human Pancreas

HumanPancreasThe pancreas is a body organ that does some heavy lifting. It carries on two important functions relating to digestion and the regulation of blood sugar. The exocrine, the larger function, makes enzymes to help digest food such as proteins and fats. The exocrine portion releases these enzymes into the pancreas duct where it flows into the duodenum and mixes with food after it has left the stomach.

The other function of the pancreas is called endocrine. It consists of scattered cells called islet cells which make hormones such as insulin and glucagon which regulate the body's blood sugar and hold it within a very tight range. If your blood sugar is too low, your brain won't function properly. If it is too high you would have diabetes which leads to damage to various body parts.

The pancreas is about the size of a small oblong loaf of bread. In humans, it is located in the back of the abdomen, behind the stomach and intestines, just above the belly button and against the spine. If affected by disease, the pancreas does not regenerate itself. If you lose more than 90% of your islet cells, you end up with diabetes. If you have chronic pancreatitis, an inflammation of the pancreas, you will have trouble with digestion and have to take enzyme pills. The pancreas works hard to process the food we eat.