Category: N

The removal of DNA from a cell for placement into an egg (e.g., during cloning).  

Any test that relies on the use of radioactive tracers to diagnose disease. Radioactive isotopes are either injected into the body or inhaled, the dose of radiation is minimal, and the substances used either lose their radioactivity in a short time or are excreted. Nuclear medicine scans may be used to diagnose tumors, biliary disease,…

A persistent peritoneal pouch that accompanies the round ligament of the uterus through the inguinal canal.  

Intrauterine ultrasonography of the nape of the fetal neck, measured in the first trimester of pregnancy. Abnormal thickening of this part of the body has been associated with a variety of congenital, chromosomal diseases.  

A trade name for procaine, a local anesthetic. “Novocaine” is often loosely used to signify any local or topical anesthetic in discussions with laypersons.  

An instruction used in patient care to indicate that the patient is not to take or receive food, solids, liquid, or medicine orally. This order is usually indicated by the abbreviation NPO.  

Protrusion of the brain from the back of the head.  

The width of the femoral intercondylar notch divided by the width of the femoral condyles.  

A surgical procedure to enlarge the intercondylar notch and space available for an anterior cruciate ligament graft during knee reconstruction. The lateral wall of the notch, which is the medial portion of the lateral femoral condyle, may be removed by various means.  

A deep notch on the anterior surface of the maxilla, forming the lateral border of the piriform aperture.