TOXICOLOGIC PATHOLOGY OF UPPER RESPIRATORY TRACT

Pathology of the Repiratory System the Upper Respiratory Tract

Symposium on toxicologic pathology of the upper respiratory system. September 14-16, 1988, Durham, North Carolina.

Background: Chaetognaths, or arrow worms, are small marine, bilaterally symmetrical metazoans. The objective of this study was to analyse ribosomal protein (RP) coding sequences from a published collection of expressed sequence tags (ESTs) from a chaetognath (Spadella cephaloptera) and to use them in phylogenetic studies. Results: This analysis has allowed us to determine the complete primary s...

Upper Respiratory Tract Infections

The upper respiratory system includes the nose, nasal cavity, pharynx, and larynx with subglottic area of trachea. In the normal circumstances, air enters the respiratory system through nostrils where it is filtered, humidified, and warmed inside the nasal cavity. Conditioned air passes through pharynx, larynx, and trachea and then enters in lower respiratory system. Dysfunction of any part of ...

Upper Respiratory Tract Infection

Upper respiratory tract infection (URI) is a general term for a heterogeneous group of illnesses caused by numerous etiologic agents that affect the mucosal lining of the upper respiratory tract, including the middle-ear cavity and paranasal sinuses. URIs are primarily caused by viruses, rhinoviruses being the most common etiological agents. Respiratory viruses transmit easily via direct contac...

Society of Toxicologic Pathology Guideline - Best Practices Guideline: Toxicologic Histopathology

Health & Environmental Sciences, Dow Corning Corporation, Midland, Michigan 48686 Covance Laboratories Inc., Vienna, Virginia 22182 Pathco Inc., Frederick, Maryland 21702 Laboratory of Experimental Pathology, National Institute of Environmental Health, Research Triangle Park, North Carolina 27709 Center for Veterinary Medicine, Food and Drug Administration, Rockville, Maryland 20855 Estuary Pha...