|
|
Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.
In 1885, the Lloyd Manufacturing Company of Albany, New York, promoted and sold "Cocaine Toothache Drops" at 15 cents per bottle! In 1914, the Harrison Narcotic Act brought the sale and distribution of this drug under federal control.
Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.
Medication errors are more common among seriously ill patients than with those with minor conditions.
Many people have small pouches in their colons that bulge outward through weak spots. Each pouch is called a diverticulum. About 10% of Americans older than age 40 years have diverticulosis, which, when the pouches become infected or inflamed, is called diverticulitis. The main cause of diverticular disease is a low-fiber diet.
![Vertebral compression Fractures of the spine (vertebra) can cause severe ”band-like” pain that radia](https://biology-forums.com/gallery/47/medium_14755_24_09_12_7_46_03_89701453.jpeg)
![Blood-typing and cross-reactions: The blood type depends on the presence of surface antigens (agglut](https://biology-forums.com/gallery/47/medium_14755_01_10_12_7_59_21_9228594.jpeg)
![The coagulation cascade. Both the intrinsic pathway and extrinsic pathway lead to a common pathway ...](https://biology-forums.com/gallery/28/medium_482573_28_04_17_1_15_10_285332349.jpeg)