The distance from the posterior superior iliac spine (PSIS) to the intercristal line can be an accurate predictor of lumbar plexus depth in children, according to a study published in Anesthesia & ...

Once viewed merely as a producer of the cerebrospinal fluid (CSF) bathing the brain and spinal cord, the choroid plexus is now known to be a key player in brain development and immunity. These fronds ...