sinus

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sinus

si·nus

 (sī′nəs)
n.
1. A depression or cavity formed by a bending or curving.
2. Anatomy
a. A dilated channel or receptacle containing chiefly venous blood.
b. Any of various air-filled cavities in the bones of the skull, especially one communicating with the nostrils.
3. Medicine A fistula leading from a pus-filled cavity.
4. Botany A recess or indentation between two lobes or segments, as of a leaf.

[Middle English, hollow in the body, from Medieval Latin, from Latin, curve, hollow.]

sinus

(ˈsaɪnəs)
n, pl -nuses
1. (Anatomy) anatomy
a. any bodily cavity or hollow space
b. a large channel for venous blood, esp between the brain and the skull
c. any of the air cavities in the cranial bones
2. (Pathology) pathol a passage leading to a cavity containing pus
3. (Botany) botany a small rounded notch between two lobes of a leaf, petal, etc
4. (Zoology) an irregularly shaped cavity
[C16: from Latin: a curve, bay]

si•nus

(ˈsaɪ nəs)

n., pl. -nus•es.
1. a curve; bend.
2. a curving part or recess.
3.
a. any of various cavities, recesses, or passages in the body, as a hollow in a bone or a reservoir or channel for venous blood.
b. one of the hollow cavities in the skull connecting with the nasal cavities.
c. an expanded area in a canal or tube.
4. a narrow passage leading to an abscess or the like.
5. a small, rounded depression between two projecting lobes, as of a leaf.
[1590–1600; < Latin sinus (s. sinu-) bent or curved surface, curve, fold]
si′nus•like`, adj.

si·nus

(sī′nəs)
1. A cavity or hollow space in a bone of the skull, especially one that connects with the nose.
2. A channel for the passage of a body fluid, such as blood.

sinus

A cavity or hollow, as in the skull’s air-filled nasal sinuses and in the channels draining venous blood from the brain.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.sinus - an abnormal passage leading from a suppurating cavity to the body surfacesinus - an abnormal passage leading from a suppurating cavity to the body surface
passageway, passage - a path or channel or duct through or along which something may pass; "the nasal passages"
2.sinus - any of various air-filled cavities especially in the bones of the skull
ethmoid sinus, ethmoidal sinus, sinus ethmoidales - a sinus of the meatuses of the nasal cavity (behind the bridge of the nose)
frontal sinus - one of a pair of cavities in the frontal bone
maxillary sinus - one of a pair of sinuses forming a cavity in the maxilla
nasal sinus, paranasal sinus, sinus paranasales - any of the paired sinuses in the bones of the face adjacent to the nasal cavity that are lined with mucous membrane that is continuous with the lining of the nasal cavities
bodily cavity, cavum, cavity - (anatomy) a natural hollow or sinus within the body
3.sinus - a wide channel containing bloodsinus - a wide channel containing blood; does not have the coating of an ordinary blood vessel
duct, epithelial duct, canal, channel - a bodily passage or tube lined with epithelial cells and conveying a secretion or other substance; "the tear duct was obstructed"; "the alimentary canal"; "poison is released through a channel in the snake's fangs"
cavernous sinus, sinus cavernosus - either of a pair of large venous sinuses in the cranial cavity
coronary sinus, sinus coronarius - a short sinus receiving most of the veins of the heart; empties into the right atrium
sigmoid sinus, sinus sigmoideus - an S-shaped dural sinus on the temporal and occipital bones
sinus rectus, straight sinus, tentorial sinus - an unpaired sinus of the dura mater
sinus transversus, transverse sinus - a paired dural sinus; terminates in the sigmoid sinus
Translations
تـَجْوِيفجَيْب أنْفي
dutinadutinyv dutinách
bihulebihule-
sivuontelo
sinus
homloküreg
ennishola
만곡부
sinusas
sinuss
sinus
โพรงในกระดูกศีรษะ
sinüskemik içi boşluğu
xoang

sinus

[ˈsaɪnəs] N (sinuses (pl)) (Anat) → seno m

sinus

[ˈsaɪnəs]
nsinus m inv
modif [congestion, infection] → des sinus; [trouble] → de sinus

sinus

n (Anat) → Sinus m (spec); (in head) → (Nasen-)nebenhöhle f, → Stirnhöhle f

sinus

[ˈsaɪnəs] n (Anat) → seno, cavità f inv

sinus

(ˈsainəs) noun
(usually in plural) an air-filled hollow in the bones of the skull, connected with the nose. His sinuses frequently become blocked in the winter; (also adjective) He suffers from sinus trouble.

sinus

تـَجْوِيف dutina bihule Nasennebenhöhle κοιλότητα seno sivuontelo sinus sinus seno 만곡부 holte bihule zatoka cavidade óssea, seio nasal пазуха sinus โพรงในกระดูกศีรษะ sinüs xoang

si·nus

n. L. sinus, seno, cavidad de abertura estrecha;
___ rhythmritmo sinusal.

sinus

n (paranasal) seno; (pilonidal); seno or sinus m; ethmoid — seno etmoidal; frontal — seno frontal; maxillary — seno maxilar; paranasal — seno paranasal; pilonidal — seno or sinus pilonidal; sphenoid — seno esfenoidal; — tract tracto sinusal
References in periodicals archive ?
Pre-contrast axial images demonstrate high density in the right sigmoid sinus (A, black arrow), cortical veins (B, black arrows) and superior sagittal sinus (C, white arrow).
Cranio-cerebral MRI angiography were ordered, detecting the presence of thrombosis in the right sigmoid sinus and the confluence between the transverse sinus and the superior sagittal sinus without intraparenchymal ischemic signs (Figures 1 and 2).
Brain MRI demonstrates a mass with intracranial T1 hyperintensity/T2 hypointensity and extracranial heterogenous T1 hyperintensity/T2 hypointensity with mass effect on the patent superior sagittal sinus and brain parenchyma (Figures 1,2).
In a case series reported by Azin and Ashjazadeh (27) including 61 cases of CSVT, in 80.3% of the cases, the thrombosis was detected in the superior sagittal sinus; the sigmoid sinus was affected in 6.5% and cavernous sinus thrombosis was detected in 4.9%.
Imaging by MRV showed involvement of superior sagittal sinus in 21 (70%) of the cases, transverse sinus in 19 (63.3%) of the cases, sigmoid sinus in 16 (53.3%) of the cases and deeper veins in 1 (3.3%) of the case including cases with multiple sinus involvement.
Gadobutrol enhancement was measured at all imaging time points at predefined locations (brain parenchyma, subarachnoid and intraventricular space, and inside the sagittal sinus), and gadobutrol enhancement and clearance patterns were compared between the two groups.
A 6x4x3 cm bone flap based on the right side, two thirds anterior and one third posterior to the coronal suture with sagittal sinus exposure was used.
However, the MR venogram showed occlusion of superior sagittal sinus, straight sinus, and bilateral transverse sinus [Figure 1]b and [Figure 1]c.
Follow-up MRI showed a mass extending into the right parietal superior sagittal sinus. The extra-axial lesion measured approximately 13mm x 16mm x 13mm.
Depressed skull fracture over superior sagittal sinus (SSS) is the commonest type of dural venous sinus injury with significant morbidity and mortality.
At that time repeat MRV was notable only for a small residual thrombus in the superior sagittal sinus, as seen in Figure 3.