stria

(strī′ă)
(strī′ē)
pl. striae [L., stria, furrow]
A line, stripe, ridge, or thin band that is visible because it contrasts with the surrounding tissue. It may be elevated or of a different color or texture.
SEE: streak
SEE: limbic system for illus

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STRIAE

striae acusticae

Horizontal white stripes on the floor of the fourth ventricle of the brain.

stria atrophica

A fine pinkish-white or gray line, usually 14 cm long, seen in parts of the body where skin has been stretched. It is commonly seen on thighs, abdomen, and breasts of women who are or have been pregnant; in those whose skin has been stretched by obesity, tumor, or edema; or in people who have taken adrenocortical hormones for a prolonged period.
SYN: SEE: stretch mark; SEE: stria gravidarum

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STRIA ATROPHICA Abdomen of a gravid woman at term

striae gravidarum

SEE: Stria atrophica.

stria longitudinalis lateralis

Any of the longitudinal bands of gray matter, slightly elevated on the upper part of the corpus callosum.

stria medullaris

A thin axon tract that originates in the septal nuclei, the hypothalamus, and the anterior thalamic nucleus and synapses in the habenular nuclei of the epithalamus. It is part of the limbic system.
SYN: SEE: stria medullaris thalami
SEE: limbic system for illus

stria medullaris thalami

SEE: Stria medullaris.

olfactory stria

Any of three bands of fibers (lateral, intermediate, and medial) that form the roots of the olfactory tract. As it reaches the olfactory areas of the cortex on the undersurface of the brain, the olfactory tract splits into two visible ridges, a large lateral and a small medial stria.

stria of Retzius

SEE: Retzius, Magnus Gustaf

stria terminalis

An axon tract that originates in the amygdala and synapses in the hypothalamus. It is a slender, compact tract that curves over the thalamus, arching along the medial surface of the caudate nucleus (below the fornix), and terminates in the anterior hypothalamus. It is part of the limbic system.

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