Most reflexes do not involve the brain; they are fast, involuntary responses that travel over what is known as a reflex arc.
Have you ever wondered why some dogs have solid colored coats and some have spots? Find out why on this Moment of Science.
Our doctors always test our knee reflexes, but why is it so important?
Did you know that the virus that causes chicken pox, the varicella-zoster virus, never actually leaves your body? It lies dormant from the time you get the illness, in nerve cells alongside your spinal cord. Learn more on this Moment of Science.
How is it that sometimes people survive multiple lightening strikes, while others die instantly?
Although dwarfism can result in some medical problems such as spinal stenosis, where the spinal column is too narrow to accommodate the spinal cord, many little people lead healthy, productive lives. A more common problem involves inaccessibility in public spaces.
This means that the water pumping in and out of them also provides them with nutrients and enables them to eliminate waste products. If you’ve ever wished you were just a little bit taller, try measuring your height in the morning. It might make all the difference.
Why do some creatures have spots and stripes, while others don't?
In the last few years, a scourge from the Middle East has posed a biological threat to North American well-being–mosquitoes carrying the West Nile virus.