Non-keratinized squamous epithelial cells. 1  They are formed in the farthest part of urethra or vagina. 2  They have small nuclei and are larger than transitional cells. 3  They have one or more flat border. 4  They can be formed in any shape but are generally found to be round.
The average cost for an egr valve replacement is between $160 to $242. Labor costs are estimated between $74 to $94 while parts are priced between $86 to $148. Get a personalized estimate based on your location and specific car. Estimate does not include taxes and fees.
The EGR valve, or Exhaust Gas Recirculation valve, is a vacuum controlled valve which allows a specific amount of your exhaust back into the intake manifold.This exhaust mixes with the intake air and actually cools the combustion process.he EGR valve, or Exhaust Gas Recirculation valve, is a vacuum controlled valve which allows a specific amount of your exhaust back into the intake manifold.