|
|
Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.
About 100 new prescription or over-the-counter drugs come into the U.S. market every year.
If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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.
![Lake position in the landscape and proportion of water received as groundwater (data from Webster et](https://biology-forums.com/gallery/47/medium_33_19_02_12_5_42_32_20651521.jpeg)
![Treatment of Depression with Ketamine The graph shows the effects of ketamine on symptoms of depress](https://biology-forums.com/gallery/47/medium_349269_21_05_15_12_35_10_218011155.jpeg)
![Hospice care is based on the belief that when death is inevitable, professional caregivers should ...](https://biology-forums.com/gallery/27/medium_660366_08_04_17_10_05_21_275661530.jpeg)