The normal corneal endothelium is a single layer of uniformly sized cells with a predominantly hexagonal shape. This honeycomb tiling scheme yields the greatest efficiency, in terms of total perimeter, of packing the posterior corneal surface with cells of a given area.
Prabal Gurung (Nepali: à¤ªà¥à¤°à¤¬à¤² à¤à¥à¤°à¥à¤) (born 1979) is a Singapore-born Nepali-American fashion designer based in New York City. Contents.
What It Is. A lumbar puncture (LP), often called a spinal tap, is a common medical test that involves taking a small sample of cerebrospinal fluid (CSF) for examination. CSF is a clear, colorless liquid that delivers nutrients and cushions the brain and spinal cord, or central nervous system. In a lumbar puncture, a needle is carefully inserted into the lower spine to collect the CSF sample.