perforated substance

perforated substance
perforated substance n any of three small areas on the lower surface of the brain that are perforated by many small openings for blood vessels and that are situated two anteriorly at the commencement of the sylvian fissure and one posteriorly between the mammillary bodies in front and the cerebral peduncles laterally called also perforated space, perforate space

Medical dictionary. 2011.

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  • perforated substance interpeduncular — perforated substance, posterior substantia perforata posterior …   Medical dictionary

  • Anterior perforated substance — Infobox Brain Name = PAGENAME Latin = substantia perforata anterior GraySubject = 189 GrayPage = 827 Caption = Scheme of rhinencephalon. (Anterior perforated substance labeled at bottom left.) Caption2 = Base of brain. (Anterior perforated… …   Wikipedia

  • Posterior perforated substance — Infobox Brain Name = PAGENAME Latin = substantia perforata posterior, substantia perforata interpeduncularis GraySubject = 188 GrayPage = 800 Caption = Coronal section of brain immediately in front of pons. (Post. perf. substance labeled at lower …   Wikipedia

  • perforated substance anterior — substantia perforata anterior …   Medical dictionary

  • perforated substance rostral — substantia perforata anterior …   Medical dictionary

  • substance — Stuff; material. SYN: substantia [TA], matter. [L. substantia, essence, material, fr. sub sto, to stand under, be present] alpha s. SYN: reticular s. (1). anterior perforated s. [TA] a region at the base …   Medical dictionary

  • Diagonal band of Broca — Brain: Diagonal band of Broca Base of brain. (Diagonal band of Broca not labeled, but anterior perforated substance labeled at center.) …   Wikipedia

  • substantia — SYN: substance. [L.] s. adamantina SYN: enamel. s. alba SYN: white matter. basal s. [TA] basal structures associated with the amygdaloid complex and its connections; includes the basal nucleus [TA] ( …   Medical dictionary

  • space — Any demarcated portion of the body, either an area of the surface, a segment of the tissues, or a cavity. SEE ALSO: area, region, zone. SYN: spatium [TA]. [L. spatium, room, s.] alveolar dead s …   Medical dictionary

  • Olfactory trigone — Brain: Olfactory trigone Scheme of rhinencephalon. (Olfactory trigone not labeled, but region is visible at bottom left, between anterior perforated substance and olfactory tract.) …   Wikipedia

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