- pial sheath
- the continuation of the pia mater around the optic nerve, forming part of the internal sheath of the optic nerve.
Medical dictionary. 2011.
pial sheath
Look at other dictionaries:
pial funnel — a sheath of adventitia, extended from the pia mater, loosely surrounding blood vessels as they enter the brain or spinal cord; see also Virchow Robin spaces, under space … Medical dictionary
vaina pial — Eng. Pial sheath Porción de la duramadre que envuelve al nervio óptico … Diccionario de oftalmología
vagina interna nervi optici — [TA] internal sheath of optic nerve: the inner sheath of the optic nerve, continuous with the pia mater and arachnoidea mater; called also inner sheath of optic nerve. See also arachnoid sheath and pial sheath, under sheath … Medical dictionary
pia mater cranialis — [TA] the pia mater covering the brain, very thin over the cerebral cortex, and thicker over the brainstem; the blood vessels for the brain ramify within it and, as they enter the brain, are accompanied for a short distance by a pial sheath.… … Medical dictionary
part — A portion. SYN: pars [TA]. abdominal p. of aorta SYN: abdominal aorta. abdominal p. of esophagus [TA] the portion of the esophagus from where it passes through the diaphragm to the stomach. See … Medical dictionary
membrane — 1. A thin sheet or layer of pliable tissue, serving as a covering or envelope of a part, as the lining of a cavity, as a partition or septum, or to connect two structures. SYN: membrana [TA]. 2. SYN: biomembrane. [L. membrana, a skin or m … 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
Whitebark Pine — Taxobox name = Whitebark Pine status = VU status system = iucn2.3 image width = 240px image caption = A stand of Whitebark Pines regnum = Plantae divisio = Pinophyta classis = Pinopsida ordo = Pinales familia = Pinaceae genus = Pinus subgenus =… … Wikipedia
pars — SYN: part. [L. p. (part ) a part] p. abdominalis aortae [TA] SYN: abdominal aorta. p. abdominalis ductus thoracici [TA] SYN: abdominal part of thoracic duct. p. abdominalis esophagi [TA] SYN: abdominal part of esophagus. p. abdomina … Medical dictionary
Oligodendroglioma — Classification and external resources Micrograph of an oligodendroglioma showing the characteristic branching, small, chicken wire like blood vessels and fried egg like cells, with clear … Wikipedia
