sinuses of dura mater

sinuses of dura mater
sinus durae matris [TA] large venous channels forming an anastomosing system between the layers of the cranial dura mater. They are devoid of valves, do not collapse when drained, and in some parts contain trabeculae. They drain the cerebral veins and some diploic and meningeal veins into the veins of the neck. Those at the base of the skull also drain most of the blood from the orbit. In some places they communicate with superficial veins by small emissary vessels. Called also cranial s's, s. venosi durales, and venous s's of dura mater.

Medical dictionary. 2011.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • Dura mater — Meninges of the CNS Gray s subject #193 872 MeSH …   Wikipedia

  • dura mater of brain — dura mater cranialis [TA] cranial dura mater: the dura mater covering the brain, composed of two mostly fused layers: an endosteal outer layer (endocranium) adherent to the inner aspect of the cranial bones, analogous to the periosteum of the… …   Medical dictionary

  • dura mater — Pachymeninx (as distinguished from leptomeninx, the combined pia mater and arachnoid); a tough, fibrous membrane forming the outer covering of the central nervous system. SYN: dura [TA], pachymeninx [TA]. [L. hard mother, mistransl. of Ar. umm al …   Medical dictionary

  • venous sinuses of dura mater — s. durae matris …   Medical dictionary

  • sinus of the dura mater — n any of numerous venous channels (as the sagittal sinuses, straight sinus, and transverse sinuses) that are situated between the two layers of the dura mater, that have no valves, and that drain blood from the brain and the bones forming the… …   Medical dictionary

  • Dural venous sinuses — Vein: Dural venous sinuses Dural veins …   Wikipedia

  • confluence of sinuses — con·flu·ence of sinuses kän .flü ən(t)s , kən flü n the junction of several of the sinuses of the dura mater in the internal occipital region called also confluence of the sinuses, torcular Herophili * * * confluens sinuum …   Medical dictionary

  • sinus — 1. [TA] A channel for the passage of blood or lymph, without the coats of an ordinary vessel; e.g., blood passages in the gravid uterus or those in the cerebral meninges. 2. [TA] A cavity or …   Medical dictionary

  • meninges — meningeal /mi nin jee euhl/, adj. /mi nin jeez/, n.pl., sing. meninx /mee ningks/. Anat. the three membranes covering the brain and spinal cord. Cf. arachnoid (def. 6), dura mater, pia mater. [1610 20; < NL < Gk méninges, pl. of MÊNINX membra …   Universalium

  • skeletal system, human — ▪ anatomy Introduction  the internal skeleton that serves as a framework for the body. This framework consists of many individual bones (bone) and cartilages (cartilage). There also are bands of fibrous connective tissue the ligaments (ligament)… …   Universalium

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”