Category: S
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Subendothelial layer
The layer of fine fibers and fibroblasts lying immediately under the endothelium of the tunica intima of larger arteries and veins.
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Subendocardial layer
The layer of loose connective tissue between the endocardium and the myocardium.
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Spongy layer
Middle layer of the uterine endometrium; contains dilated portions of uterine glands.
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Surface enhanced laser desorption
A technique used to separate and image molecules (e.g., DNA or proteins) in biological samples. Molecules are captured on a protein chip, then ionized and imaged. This technique can be used to map the molecules in samples of blood or other body fluids.
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Syphilitic laryngitis
A rare, chronic form of laryngitis produced by secondary or tertiary involvement of the larynx by syphilis.
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Soft tissue landmark
An area or point on a soft tissue used as a point of reference for measurements of the body or its parts.
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Suprachoroid lamina
The superficial layer of the choroid consisting of thin transparent layers, the outermost adhering to the sclera.
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Spiral lamina
A thin, bony plate projecting from the modiolus into the cochlear canal, dividing it into two portions, the upper scala vestibuli and lower scala tympani. Also called lamina spiralis.
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Stellate laceration
A tear in the skin or in an internal organ caused by blunt trauma. Several lines emanate outward from the tear’s center.
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Spontaneous labor
Labor that begins and progresses without pharmacological, mechanical, or operative intervention.