Sagittal
A vertical plane passing through the standing body from front to back. The mid-sagital, or median, plane splits the body into left and right halves.
For a more complete listing of terms used in medicine for spatial orientation, please see the entry to “Anatomic Orientation Terms”.
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- Sagittal sinus
A large vein that runs on the top of the skull from front to back and then splits to carry blood from the brain toward the heart.
- Salaam
In a medical context, a seizure that looks like a sudden deep bow from the waist. Salaam seizures are characteristic of infantile spasms.
- Salabrasion
A technique in which salt or a salt solution is used to abrade the skin, for example to remove the pigment from a tattoo or permanent makeup.
- Salicylic acid
A substance obtained from plants (white willow back and wintergreen leaves) and also synthesized which is versatile and possesses bacteriostatic, fungicidal, and keratolytic actions. Salicylic acid is used as a food preservative and as an antiseptic in toothpaste. It is a peeling agent in ointments, creams, gels, and shampoos applied to reduce the scaling of […]
- Salient
Standing out. Projecting. Diseases may be classified or recognized by salient features.