|
|
Aspirin is the most widely used drug in the world. It has even been recognized as such by the Guinness Book of World Records.
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.
The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.
The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.
Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.
![Compression Occurs in vertebrae subjected to extreme stresses, as when one falls and lands on his or](https://biology-forums.com/gallery/47/medium_14755_24_09_12_7_46_02_8969316.jpeg)
![Urinary catheterization. The procedure involves the insertion of a flexible tube, or catheter, throu](https://biology-forums.com/gallery/47/medium_14755_26_10_12_5_21_07_96742390.jpeg)