stria (redirected from stria medullares)

stria (stri´ah) pl. stri´ae   [L.]

1. a band, line, streak, or stripe.

2. in anatomy, a longitudinal collection of nerve fibers in the brain.

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stri´ae atro´phicae , stri´ae disten´sae atrophic, pinkish or purplish, scarlike lesions, later becoming white, on the breasts, thighs, abdomen, and buttocks, due to weakening of elastic tissues, associated with pregnancy (striae gravidarum), overweight, rapid growth during puberty and adolescence, Cushing's syndrome, and topical or prolonged treatment with corticosteroids.

stri´ae gravida´rum  see striae atrophicae.

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stri·a (str)

n. pl. stri·ae (str)

1. A thin, narrow groove or channel.

2. A thin line or band, especially one of several that are parallel or close together.

3. A thin line, band, stripe, or streak distinguished from the tissue in which it is found; a striation.

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stria

[strī′ə] pl. striae

Etymology: L, furrow

a streak or a linear scar that often results from rapidly developing tension in the skin, such as seen on the abdomen after pregnancy. Purplish striae are among the classic findings in hyperadrenocorticism. Also called stretch mark.

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stria

pl. striae [L.]

1. a streak or line.

2. a narrow, bandlike structure; longitudinal collections of nerve fibers in the brain.

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atrophic stria, striae atrophicae

atrophic, pinkish or purplish, scarlike lesions in the skin, later becoming white, due to weakening of elastic tissues. Seen in association with canine Cushing's syndrome.

habenular stria

a bundle of nerve fibers connecting the olfactory centers with the habenular nuclei.

stria mallearis

a light band visible through the tympanic membrane when it is examined with an otoscope; is the handle of the malleolus.

stria medullares

bundles of white fibers across the floor of the fourth ventricle.

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stria 

1. Slight dark ridges in the pars plana of the ciliary body, which run parallel with each other from the teeth of the ora serrata to the valleys between the ciliary processes. Syn. striae ciliares.

2. A line in the posterior corneal stroma associated with corneal oedema and sometimes keratoconus.

3. A vein or streak seen in optical glass which has been contaminated during manufacture or in which the ingredients have been imperfectly mixed. See ciliary body; glass; oedema.