Category: S

A microscope with slit illumination for examining the eye, especially the cornea.  

An electron microscope that scans the image point by point and displays the image on a photographic film or television screen. The SEM, unlike other types of microscopes, allows a three-dimensional view of the tissue, and tissues do not need to be extensively handled and prepared in order to be visualized. The magnification ranges from…

The inner layer of the lateral mesoderm. It becomes intimately associated with the endoderm, forming the splanchnopleure, from which the gut and the lungs and their coverings arise.  

The outer layer of the lateral mesoderm. It becomes intimately associated with the ectoderm, forming the somatopleure, from which the ventral and lateral walls of the embryo develop.  

Failure of menstruation to occur when normally expected.  

Meningitis with serous exudation into the cerebral ventricles.  

The ability to recall three dimensional objects or places (e.g., the location of an object in space, the position of one object in relation to another, or the correct path through a maze).  

The recollection only of particular aspects of an event or experience; limited recall.  

A membrane that allows one substance, such as water, to pass through more readily than another, such as salt or sugar.  

A melanoma measuring less than 6 mm in diameter.