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| 1 | Sigmoid |
| Sigmoid generally means resembling the letter "S" or the lower-case Greek letter sigma (ς). Specific uses include: In mathematics, either a specific function — the logistic curve — or any real function whose graph has a sigmoid shape: see sigmoid function. In anatomy, the sigmoid colon is a ... | |
| 2 | Aortic sinus |
| An aortic sinus is one of the anatomic dilations of the ascending aorta which occurs at the aortic root, i.e., just above the aortic valve. There are generally three aortic sinuses, the left, the right and the posterior. The left aortic sinus gives rise to the left coronary artery, the right ... | |
| 3 | Aneurysm of sinus of Valsalva |
| Aneurysm of the aortic sinus, also known as the sinus of Valsalva. This aneurysm is usually in either the right or in the noncoronary sinus of the aorta, rarely in the left aortic sinus. This type aneurysm is typically congenital, sometimes associated with Marfan syndrome ... | |
| 4 | Sick sinus syndrome |
| Sick sinus syndrome , also called Bradycardia-tachycardia syndrome is a group of abnormal heartbeats (arrhythmias) presumably caused by a malfunction of the sinus node, the heart's "natural" pacemaker. Causes Sick sinus syndrome is a relatively uncommon syndrome. It can result in many abnormal ... | |
| 5 | Sinusitis |
| Sinusitis is an inflammation, either bacterial, viral or allergic/inflammatory, of the paranasal sinuses. It can be acute (going on less than three weeks) or chronic (going on more than three weeks). Sinusitis is one of the most common complications of the common cold. Symptoms include: Headache ... | |
| 6 | Paranasal sinus |
| The paranasal sinuses are eight (four pairs) air-filled spaces, or sinuses, within the bones of... under; the maxilliary sinuses, also called the antra, are under the eyes, in the upper jawbone. the frontal sinuses, over the eyes, in the bone of the forehead. the ethmoid sinuses, between the nose ... | |
| 7 | Nasal polyp |
| paranasal sinuses. Nasal polyps are usually classified into antrochaonal polyps and ethmoidal polyps. Antrochaonal polyps arise from the maxillary sinuses and the ethmoidal polyps arise from the ethmoidal sinuses. Antrochoanal polyps are usually single and unilateral whereas ethmoidal polyps are multiple ... | |
| 8 | Renal sinus |
| The renal sinus is a cavity within the kidney which is occupied by the renal pelvis, renal calices, blood vessels, nerves and fat ... | |
| 9 | Sinus |
| A sinus is a pouch or cavity in any organ or tissue, or an abnormal cavity or passage caused by... to it. These nose-associated sinuses are called paranasal sinuses and are usually what is meant when a person's "sinuses" are referred to ... | |
| 10 | List of maria on the Moon |
| features known by the names lacus , palus and sinus . Maria and Oceanus The Lunar Maria Latin Name... 117 Lacus Timoris Lake of Fear 38.8S 27.3W 117 Lacus Veris Lake of Spring 16.5S 86.1W 396 Sinus and Palus A related set of features are the "Sinus" (bays) and "Palus" (marshes): Palus and Sinus ... | |
| 11 | Skull |
| ) sigmoid sinus posterior meningeal artery internal jugular vein hypoglossal canal - hypoglossal... as an attempted life-saving technique. The skull also contains the sinus cavities. The meninges are... - emissary vein to superior sagittal sinus foramina of cribriform plate - olfactory nerve bundles ... | |
| 12 | Arachnoid granulation |
| venous sinuses of the brain, and allow cerebrospinal fluid (CSF) to exit the brain, and enter the blood... granulations lie along the superior sagittal sinus, a large venous space running from front to back... sinuses as well. Smaller granulations are called villi , large calcified ones are referred to as ... | |
| 13 | Decongestant |
| A decongestant is a broad class of drugs designed to remedy ailments affecting the respiratory system. They can generally be divided into those designed to clear the lungs, such as guaifenesin or potassium iodide, and those which assist the drainage of sinuses, such as pseudoephedrine or menthol ... | |
| 14 | Fibrillation |
| with conversion to normal sinus rhythm. Ventricular fibrillation is rapidly fatal if not reversed by ... | |
| 15 | Sinus Meridiani |
| Sinus Meridiani is a classic albedo feature on Mars stretching east-west just south of that... oceans, Flammarion named a dark area at that point "Sinus Meridiani", literally "Meridian Bay... topography. Sinus Meridiani consequently became also known as Terra Meridiani , or "Meridian Land ... |