Saccus

(sak’ -us) [L.]. A sac. S. endolymphatic us. A small sac contained in the aqueduct of the vestibule and serving to establish a communication between the endolymph and the subdural space. Sachse’s Test. A test for sugar in the urine, consisting in the reduction of the test-solution, a solution of mercuric iodid, pota ium iodid, and pota ium hydrate. It is generally employed as a quantitative test. 562