Category: S

A venous sinus at the junction of the falx cerebri and the cerebellar tentorium.  

One of the dilatations in the pulmonary trunk, across from a cusp of the pulmonary valve of the heart. The sinuses in the pulmonic trunk are smaller than those in the aorta.  

A large sinus from the sphenoidal fissure to the apex of the petrous portion of the temporal bone.  

The calcium or silica deposits formed from water obtained from mineral springs.  

Condition in which the left eye is dominant.  

Displacement of the heart to left of the medial line; the opposite of dextrocardia. The shifting of the heart to the left side of the chest.  

In anatomy, left; or present on the left side of the body.  

A medical device used once for the care of a single patient and then immediately discarded.  

One of something described, especially a single infant rather than a twin. In the context of pregnancy, a singleton refers to a fetus that develops individually in the uterus. Unlike multiple pregnancies, such as twins or triplets, where multiple fetuses coexist within the womb, a singleton pregnancy involves the growth and development of a single…

To a method, study, or clinical trial in which only the researcher knows what treatment or medication the subject receives. A single blinded study attempts to eliminate subjective bias such as the placebo effect from the results.