Nasal cycle

From Wikipedia, the free encyclopedia

You have new messages (last change).

In humans the nasal cycle is the normal ultradian cycle of each nostril's blood vessels becoming engorged in swelling, then shrinking. During the course of a day they will switch over approximately every four hours or so.[1]

[edit] References

  1. ^ http://www.webmd.com/content/article/4/1680_51935.htm?lastselectedguid=%7B5FE84E90-BC77-4056-A91C-9531713CA348%7D
 This physiology article is a stub. You can help Wikipedia by expanding it.
Retrieved from "http://en.wikipedia.org../../../n/a/s/Nasal_cycle.html"