Communicating with Coworkers. As a medical assistant, you are part of a larger health-care team. The quality of communication that you have with your coworkers is vitally important and influences the development of positive or negative work environments, as well as a team approach to patient care.
venous sinus in Medicine Expand. venous sinus n. A cavity at the caudal end of the embryonic cardiac tube in which veins from the intra- and extraembryonic circulatory arcs unite. In adults it develops into the sinuses of the venae cavae.
Sinus (Definition) 1  In anatomy, a sinus is a cavity within a bone or other tissue. 2  A burning sensation can be descriptive of nerve pain, some variations of migraine, and even central brain problems after a stroke. 3  Basically a cavity is a hole, or defect in the tooth structure.