|
|
The eye muscles are the most active muscles in the whole body. The external muscles that move the eyes are the strongest muscles in the human body for the job they have to do. They are 100 times more powerful than they need to be.
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).
Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.
Adolescents often feel clumsy during puberty because during this time of development, their hands and feet grow faster than their arms and legs do. The body is therefore out of proportion. One out of five adolescents actually experiences growing pains during this period.
![Nephroblastoma. A sectioned kidney reveals the presence of a very large tumor, which arose from feta](https://biology-forums.com/gallery/47/medium_14755_26_10_12_5_19_56_9663363.jpeg)
![Zonal wind speeds on Uranus. Shaded areas show the southern collar and its future northern counterpa](https://biology-forums.com/gallery/47/medium_12359_13_01_13_4_49_23.png)