Report Abuse. 1  Since blood donations are generally a pint, and there are 8 pints in a gallon, 8 donations would be a gallon as well. 2  This Site Might Help You. 3  For the best answers, search on this site https://shorturl.im/avFM4.  A gallon is 4.54 liters.
Perineural cysts, which are also known as Tarlov cysts, are fluid-filled sacs that form on nerves at the base of the spine. A person with such cysts would likely never know it. They almost never cause symptoms. When they do cause symptoms, however, the most common is pain in the lower back, buttocks, and legs.
Medical Definition of Perineum. Perineum: The area between the anus and the scrotum in the male and between the anus and the vulva (the labial opening to the vagina) in the female. An episiotomy is a surgical procedure to widen the outlet of the birth canal to facilitate delivery of the baby and avoid a jagged rip of the perineum. Search MedTerms: