They are known as the anterior cranial fossa, middle cranial fossa and posterior cranial fossa. Each fossae accommodates a different part of the brain. The anterior cranial fossa is the most shallow and superior of the three cranial fossae. It lies superiorly over the nasal and orbital cavities.
Benign prostatic hyperplasia: A common, noncancerous enlargement of the prostate gland. The enlarged prostate may compress the urinary tube (urethra), which courses through the center of the prostate, impeding the flow of urine from the bladder through the urethra to the outside. Abbreviated BPH. If BPH is severe enough, complete blockage can occur.
What Does NOS Mean? When you look at your medical records, medical bills or other formal paperwork from a doctorâs office, you might see the abbreviation âNOSâ somewhere. This might seem frightening, but it has a very simple explanation. Hereâs what âNOSâ means in the medical context, and what that might mean for you. Besides as a medical abbreviation, NOS has other meanings such as new old stock in retail and auction industry.