Posterior horn of lateral ventricle

Posterior horn of lateral ventricle
Brain: Posterior horn of lateral ventricle
Gray735.png
Drawing of a cast of the ventricular cavities, viewed from above.
Gray736.png
Drawing of a cast of the ventricular cavities, viewed from the side.
Latin cornu posterius
Gray's subject #189 829
NeuroNames hier-205

The posterior horn of the lateral ventricle (also occipital horn, posterior cornu of the lateral ventricle, postcornu of the lateral ventricle) passes into the occipital lobe, its direction being backward and lateralward, and then medialward.

Its roof is formed by the fibers of the corpus callosum passing to the temporal and occipital lobes.

On its medial wall is a longitudinal eminence, the calcar avis (hippocampus minor), which is an involution of the ventricular wall produced by the calcarine fissure.

Above this the forceps posterior of the corpus callosum, sweeping around to enter the occipital lobe, causes another projection, termed the bulb of the posterior cornu.

The calcar avis and bulb of the posterior cornu are extremely variable in their degree of development; in some cases they are ill-defined, in others prominent.

Additional images

  • Human brain right dissected lateral view

External links

This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained within it may be outdated.

v · d · eHuman brain, cerebrum, Interior of the cerebral hemispheres: Lateral ventricles (TA A14.1.09.272–287, GA 9.829–831)
Ventricular system:
Lateral ventricles

M: CNS

anat(n/s/m/p/4/e/b/d/c/a/f/l/g)/phys/devp

noco(m/d/e/h/v/s)/cong/tumr, sysi/epon, injr

proc, drug(N1A/2AB/C/3/4/7A/B/C/D)



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Look at other dictionaries:

  • occipital horn of lateral ventricle — posterior horn of lateral ventricle cornu occipitale ventriculi lateralis …   Medical dictionary

  • bulb of posterior horn of lateral ventricle — bulbus cornus posterioris ventriculi lateralis …   Medical dictionary

  • 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.… …   Wikipedia

  • Posterior horn — The term posterior horn (also dorsal horn, posterior cornu, dorsal cornu) may refer to either of two separate anatomical structures within the central nervous system: posterior horn of lateral ventricle in the brain, which passes forward,… …   Wikipedia

  • Anterior horn of lateral ventricle — Infobox Brain Name = PAGENAME Latin = cornu anterius 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.… …   Wikipedia

  • 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

  • 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

  • posterior horn — noun 1. : a dorsal column of gray matter in the spinal cord 2. : the part of a lateral ventricle of the brain that extends inward and backward …   Useful english 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

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