lateral fissure

[lat-er-uhl fish-er]

noun

Anatomy.

1. the fissure separating the frontal, temporal, and parietal lobes of the cerebrum.

Word History and Origins

Origin of lateral fissure¹

First recorded 1800–05

Example Sentences

At other times, finding for itself some weak place in the cone, it may flow out by a lateral fissure, g.

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The angular gyrus is at B. A is over the anterior branch of the middle meningeal artery, and the bifurcation of the lateral or Sylvian fissure; AC follows the horizontal limb of the lateral fissure.

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On the morning of the 26th of October, 1822, a current was seen to flow from a lateral fissure of the crater of Vesuvius, and was loong supposed to have been boiling water; it was, however, shown, by Monticelli's accurate investigations, to consist of dry ashes, which fell like sand, and of lava pulverized by friction.

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G marks the place of a free stalagmite of ice, formed under a fissure in the roof; and each F represents a column from the roof, or from a lateral fissure in the wall.

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A, anterior median fissure; B, posterior median fissure; C, anterior lateral fissure; D, posterior lateral fissure; E, lateral column; F, anterior column; G, posterior column; H, posterior median column; K, anterior root; L, posterior root; M, ganglion of N, a spinal nerve.

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