Category: S

The study of functions and diseases of the spleen.  

Incision through the abdominal wall to access the spleen.  

The thickened posterior end of the corpus callosum.  

Any of the vascular collecting channels that lead into the internal veins of the spleen. The microcirculation in the spleen is quite leaky. Some capillaries empty directly into the splenic sinuses, but others allow blood to percolate through the extracellular red pulp before it drains into the splenic sinuses and thence into the veins.  

A sponge-like cord in the red pulp of the spleen composed of macrophages and dendritic cells. The macrophages phagocytize pathogens, cell debris, and cells that are old, abnormal, or damaged, especially red blood cells. Phagocytosis may be increased when the spleen is enlarged (splenomegaly).    

An enlarged spleen caused by hyperplasia of its pulp.  

A spleen having the appearance of grains of sago.  

The airborne distribution of particles, e.g., during dental or surgical procedures.  

A crushing instrument formerly used to close the lumen of the intestine before surgically removing the organ. A surgical tool used to compress the intestines.  

A hardening of any of the viscera through overgrowth or infiltration of connective tissue. The solidification of the internal organs.