An endoscopic exam may be done to the upper or the lower gastrointestinal (GI) tract. An endoscopy of the upper gastrointestinal (GI) tract allows the physician to see the esophagus (the tube which attaches the mouth to the stomach), the stomach, and the duodenum (first part of the small bowel or intestine). This exam may be done to: Locate bleeding in the upper gastrointestinal tract.
What would happen if a cell's lysosomes burst? Quick Answer. If a cell's lysosomes burst, the enzymes released would severely damage various components of the cell, potentially killing it. Lysosomes are small, membrane-bound vesicles, or containers, which the cell fills with powerful digestive enzymes for use when needed to digest food items.
Bare lymphocyte syndrome (BLS) is a rare immunodeficiency disorder caused by or associated with the failure of expression of cell surface antigens encoded for by the major histocompatibility complex (MHC). It is now apparent that this syndrome is heterogeneous with regards to defective cell surface antigen expression.