(a.) Pertaining to a thin membrane of the brain and spinal cord, between the dura mater and pia mater.
(a.) Covered with, or composed of, soft, loose hairs or fibers, so as to resemble a cobweb; cobwebby.
(n.) The arachnoid membrane.
(n.) One of the Arachnoidea.
Example Sentences:
(1) Diagnostic work-up and management of intracranial arachnoid cysts are still controversial.
(2) Seventy-eight patients presented optochiasmal arachnoiditis: 12 had trigeminal neuralgia; 1, arachnoiditis of the cerebellopontile angle; 6, arachnoiditis of the convex surface of the brain; and 3, the hypertensive hydrocephalic syndrome due to occlusion of the CSF routes.
(3) Within the arachnoid mater the immunoreactivity was concentrated in the basal zone of the arachnoid membrane, thus appearing as a narrow fluorescent band near the border of the dura.
(4) True arachnoid cysts of the suprasellar region are uncommon and have rarely been diagnosed pre-operatively.
(5) Four mechanisms for the formation of ectopic meningioma have been suggested: (a) direct extension of an intracranial lesion; (b) distant metastasis from an intracranial meningioma; (c) origin from arachnoid cells within the sheaths of cranial nerves; and (d) origin from embryonic nests of arachnoid cells.
(6) A series is reported of 9 cases of supratentorial arachnoid cysts in children under the age of 14 years.
(7) The second patient had optic nerve involvement as well as two intracranial parenchymal lesions and granulomatous arachnoiditis.
(8) The association of an arachnoidal cyst in the middle cranial fossa with a subdural haematoma or intracystic bleeding is emphasised.
(9) In addition, it proposes a modification of the standard dural closure that may reduce the incidence of contributory adhesive arachnoiditis by the creation of a capacious cerebrospinal fluid space about the neural plaque.
(10) Subarachnoid alumina may be a good model for human arachnoiditis.
(11) The delayed appearance of syringomyelia after a severe single spinal trauma resulting in contusion of the spinal cord without the complication of arachnoiditis is a more recent issue, but is now well-known.
(12) Many thousands of arachnoid villi subtend all the membranes from the intrathecal space, and many of these end in the large epidural veins.
(13) SSFP MR images helped markedly in diagnosis of hemorrhagic, epidermoid, and arachnoid cysts.
(14) The main causes are Potts Disease, arachnoiditis, tropical spastic paraplegia, trauma, lathyrism and cord compression.
(15) The author evaluates the dynamics of immune reactivity of the body in patients with cerebral arachnoiditis with consideration of main clinical syndrome--hypertensive-hydrocephalic, epileptiform, autonomic-vascular dystonia syndromes in different variants of the course of the process.
(16) This observation relates a case of spinal arachnoiditis with paraplegia, for a 56 year old patient hospitalized for a S.A.H.
(17) These findings suggest alternative drainage pathways for CSF besides the arachnoid villi (Pacchionian bodies) including connections with lymphatics in the neck and along the olfactory nerve, and around the cribiform plate to the nasal submucosa, and with proptosis, perhaps also through the aqueous humor-canal of Schlemm and nasolacrimal duct.
(18) Gross morphological features of cystic larvae, complex arachnoid cysts, granulomatous abscesses, basal meningitis and mineralised nodules correlated closely with the images obtained, especially on MR, where resolution permitted visualisation of larval protoscolices.
(19) CT scan demonstrated an arachnoid cyst in the left Sylvian fissure.
(20) The authors report long-term results in 17 patients with surgically treated congenital intradural spinal arachnoid cysts.
Network
Definition:
(n.) A fabric of threads, cords, or wires crossing each other at certain intervals, and knotted or secured at the crossings, thus leaving spaces or meshes between them.
(n.) Any system of lines or channels interlacing or crossing like the fabric of a net; as, a network of veins; a network of railroads.
Example Sentences:
(1) "We examined the reachability of social networking sites from our measurement infrastructure within Turkey, and found nothing unusual.
(2) The various evocational changes appear to form sets of interconnected systems and this complex network seems to embody some plasticity since it has been possible to suppress experimentally some of the most universal evocational events or alter their temporal order without impairing evocation itself.
(3) Then the esophagogastric variceal network was thrombosed by means of a catheter introduced during laparotomy, which created a portoazygos disconnection.
(4) This computer is connected to a fileserver via a local area network and is used exclusively for data acquisition.
(5) The correlates of three characteristics of familial networks (i.e., residential proximity, family affection, and family contact) were examined among a national sample of older Black Americans.
(6) This modulation results from repetitive, alternating bursts of excitatory and inhibitory postsynaptic potentials, which are caused at least in part by synaptic feedback to the command neurons from identified classes of neurons in the feeding network.
(7) One man has died in storms sweeping across the UK that have brought 100-mile-an-hour winds and led to more than 50 flood warnings being issued with widespread disruption on the road and rail networks in much of southern England and Scotland.
(8) He said the 8.13am train from the French capital to London reached Calais before suffering “network problems”.
(9) Younge, a former head of US cable network the Travel Channel, succeeded Peter Salmon in the role last year.
(10) The Sports Network broadcasts live NHL, Nascar, golf and horse racing – having also recently purchased the rights for Formula One – and will show 154 of the 196 games that NBC will cover.
(11) Combined study of lungs of 85 foetuses and newborns of various gestational age and 8 newborns dying during the first month of life showed the lung surfactant (LS) system to develop in parallel with formation of respiratory parts and lung capillary network.
(12) The capacity of granule-cell networks to separate overlapping patterns of activity on their inputs is adequate, with spatial variability in the secretion at synapses, but is improved if there is also temporal variability in the stochastic secretion at individual synapses, although this is at the expense of reliability in the network.
(13) Network #5 conducted a pilot study of state survey results to profile data for Medical Review Board (MRB) analysis and to identify potential areas where educational activities could be focused.
(14) Networking has become a powerful means of creating change.
(15) We present a useful technique for analyzing the various functional components that comprise the cardiovascular control network.
(16) He had links to networks including the Hammerskin Nation and was involved in an underground music scene often referred to as "white power music" or "hate rock".
(17) As a consequence, a neural network, considered as a kind of parallel random automata, delivers an output random field in response to the excitation provided by a random field that represents the activity of some input fibers.
(18) Numerous slender sarcotubules, originating from the A-band side terminal cisternae, extend obliquely or longitudinally and form oval or irregular shaped networks of various sizes in front of the A-band, then become continuous with the tiny mesh (fenestrated collar) in front of the H-band.
(19) The increased oxygen delivery to the capillary network after limited hemodilution can be attributed to a compensatory increase in blood flow, an increase in systemic arterial blood oxygenation, and a decrease in precapillary oxygen loss.
(20) The department has redacted the IP addresses and details of network owners who downloaded the file.