Inferior horn of lateral ventricle

Inferior horn of lateral ventricle

Infobox Brain
Name = PAGENAME
Latin = cornu inferior
GraySubject = 189
GrayPage = 829


Caption = Drawing of a cast of the ventricular cavities, viewed from above.


Caption2 = Drawing of a cast of the ventricular cavities, viewed from the side.
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Artery =
Vein =
BrainInfoType = hier
BrainInfoNumber = 204
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The inferior cornu (temporal horn, descending horn; middle horn; medicornu), the largest of the horns of the lateral ventricle, traverses the temporal lobe of the brain, forming in its course a curve around the posterior end of the thalamus.

It passes at first backward, lateralward, and downward, and then curves forward to within 2.5 cm. of the apex of the temporal lobe, its direction being fairly well indicated on the surface of the brain by that of the superior temporal sulcus.

Its roof is formed chiefly by the inferior surface of the tapetum of the corpus callosum, but the tail of the caudate nucleus and the stria terminalis also extend forward in the roof of the inferior cornu to its extremity; the tail of the caudate nucleus joins the putamen.

Its floor presents the following parts: the hippocampus, the fimbria hippocampi, the collateral eminence, and the choroid plexus.

When the choroid plexus is removed, a cleft-like opening is left along the medial wall of the inferior cornu; this cleft constitutes the lower part of the choroidal fissure.

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Look at other dictionaries:

  • inferior horn of lateral ventricle — cornu temporale ventriculi lateralis …   Medical dictionary

  • Posterior horn of lateral ventricle — Brain: Posterior horn of lateral ventricle Drawing of a cast of the ventricular cavities, viewed from above …   Wikipedia

  • Inferior horn — can refer to: * Inferior horn of thyroid cartilage * Inferior horn of lateral ventricle …   Wikipedia

  • inferior horn — n the cornu in the lateral ventricle of each cerebral hemisphere that curves downward into the temporal lobe compare ANTERIOR HORN (2), POSTERIOR HORN (2) …   Medical dictionary

  • Lateral ventricle — One cavity in a system of four communicating cavities within the brain that are continuous with the central canal of the spinal cord. The four ventricles consist of two lateral ventricles, the third ventricle and the fourth ventricle: Lateral… …   Medical dictionary

  • Lateral ventricles — Brain: Lateral ventricles Scheme showing relations of the ventricles to the surface of the brain; oriented facing left …   Wikipedia

  • horn — Any structure resembling a h. in shape. SYN: cornu (1). [A.S.] Ammon h. [TA] one of the two interlocking gyri composing the hippocampus, the other being the dentate gyrus. Based on cytoarchitectural features, Ammon h. can be divided into …   Medical dictionary

  • Ventricle — A ventricle is a chamber of an organ. For example, the four connected cavities (hollow spaces) in the central portion of the brain and the lower two chambers of the heart are called ventricles. * * * A normal cavity, as of the brain or heart. SYN …   Medical dictionary

  • anterior horn — n 1) VENTRAL HORN 2) the cornu of the lateral ventricle of each cerebral hemisphere that curves outward and forward into the frontal lobe compare INFERIOR HORN, POSTERIOR HORN (2) …   Medical dictionary

  • posterior horn — n 1) DORSAL HORN 2) the cornu of the lateral ventricle of each cerebral hemisphere that curves backward into the occipital lobe compare ANTERIOR HORN (2), INFERIOR HORN …   Medical dictionary

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