|
|
Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.
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).
Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.
The term pharmacology is derived from the Greek words pharmakon("claim, medicine, poison, or remedy") and logos ("study").
Human kidneys will clean about 1 million gallons of blood in an average lifetime.
![Downward movement of the piston lowers the air pressure inside the combustion chamber. The pressure ...](https://biology-forums.com/gallery/29/medium_548020_30_05_17_2_42_21_296151569.png)
![Direct pressure to suboccipital muscles. Fingers press up into the cervical muscle attachments along ...](https://biology-forums.com/gallery/33/medium_380798_23_08_17_12_14_15_33010261.jpeg)