|
|
Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.
Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
Atropine, along with scopolamine and hyoscyamine, is found in the Datura stramonium plant, which gives hallucinogenic effects and is also known as locoweed.
A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.
![An inguinal hernia. A portion of the small intestine is protruding through the abdominal muscles int](https://biology-forums.com/gallery/47/medium_14755_10_09_12_7_09_47_84781326.jpeg)
![Retrograde pyelogram. A contrast medium is injected into the ureter using a cystoscope, and the X-ra](https://biology-forums.com/gallery/47/medium_14755_26_10_12_5_21_06_9671618.jpeg)