That a lens not , it is necessary

That a lens not , it is necessary to put an eye a cornea downwards and slightly to press it and to cut from a back surface one movement of the razor to itself. The lens thus lays on an iris of the eye and nestles on a cornea. Plaintive glands settle down in on an angle of buy ultram online an orbit and everyone is parted by the fascial leaf going from m. levator palpebralae superioris, on two unequal parts. The most part lays over a fascia is top, or orbital, plaintive gland - gl. lacrimalis superior s. orbitalis, and smaller bottom - gl. lacrimalis inferior s. palpebralis. Top (orbital), the size to 25X14 the mm, lays in a frontal bone fossa - fossa gl. lacrimalis also cannot be palpated. Bottom () consists only of 15-20 lobes, to a conjunctiva of the top crest and can be examined at live and at a corpse if to delay an upper eyelid up and . It looks like a yellowish, hilly body. Ducts of plaintive glands open in thirds of top crest in number of 12-15. Through them tear arrives in a conjunctival bag, washing off an eyeball, and flows down to a medial angle of a palpebral fissure. Here it arrives in the plaintive ways beginning two points - puncta lacrimalia. They are on back ribs of eyelids and are an input in plaintive canaliculuses which go perpendicularly to edge of eyelids. Soon they turn under a right angle and 74 Are referred to a nose, running in a dacryocyst - saccus lacrimalis. Canaliculuses are surrounded by elastic fibers and (any) muscles departing from m. orbicularis oculi. At blinking tear arrives from a conjunctival bag in a dacryocyst and forces the way in the nasolacrimal channel. Narrowing of the nasolacrimal channel involves a dacryagogue, and stagnation of tear in a dacryocyst happens quite often the reason of its inflammation. The dacryocyst is the top blind extremity of the nasolacrimal channel - ductus naso-larcimalis. It lays in the osteal excavation formed by a plaintive ossicle and a frontal process of the top jaw - fossa sacci lacrimalis.
From top to bottom the dacryocyst is narrowed and passes in the nasolacrimal channel laying in the osteal channel, going from top to bottom, and a little . The channel direction varies depending on width of a ridge of the nose and width aperturae piriformis, that it is necessary to consider at its sounding. Lumen of the nasolacrimal channel , very narrow, length 12 mm and more. Its bottom aperture lays in a forward part of the bottom nasal course. In plaintive glands there can be inflammations, tumours, both good-quality, and malignant - adenocarcinomas, sarcoadenomas. In the plaintive channel there can be a narrowing, as congenital, and as a result of an inflammation (mushrooms - streptothrix and ), stones - dacryoliths. In a dacryocyst there can be inflammations - dacryocystites, cysts and tumours: polyps, fibromas, carcinomas, sarcomas. It is possible to open a dacryocyst, dissecting lig.palpeb-ralae mediale and then the nasolacrimal channel to probe which more conveniently from the opened dacryocyst very much a stylet. The Nasolacrimal channel. At opening of the nasolacrimal channel an antrum of Highmore laying from it, do not open. If processus frontalis it is is appreciable developed and covers the nasolacrimal channel, a way to the channel prokla - ~ through an antrum of Highmore on which medial wall it is possible to see a channel diverticulum. 75 OPENING OF THE NASOPHARYNX, NOSE AND ADNEXAL CAVITIES For this purpose it is considered the best a way Khark, giving the chance to examine not only a nose and a nasopharynx, but also the basic bone, frontal sinuses, cells of a trellised bone and antrums of Highmore. order pyridium After brain and pituitary body extraction from a frontal bone to edges of orbits and roots of a nose also reject a forward dermal flap of a head on the person. A back dermal flap from an occipital bone and cervical vertebra. A sheet saw saw on a median line in a direction a frontal bone to a nose root, and to work it is necessary rather cautiously not to damage a forehead skin. Then in the same direction saw an occipital bone to an occipital aperture. Now a saw cloth insert into both made , and saw: a trellised bone, the basic, an average part of an occipital bone and the top cervical vertebra. - For performance of this operation it is better to put a corpse prone. Two previous a frontal and occipital bone keep a saw in the necessary direction. After that, having grasped arms of edge of half of basis of a skull, with force plant them from each other (or by means of a wide gouge). Nasal bones and the top jaw are thus separated. A mucosa of a nose and a nasopharynx dissect a knife or scissors. On one of half of basis of a skull it is well visible One half of nasal cavity. For survey of other it on it is necessary to cut its septum at . If to remove nasal conchas it is possible osmot - a mucosa under them and an aperture of the plaintive The channel under the bottom concha. For survey of an antrum of Highmore dissect a lateral wall of a nasal course. Further examine a nasopharynx parted lengthways, apertures of postnarises, and in top they be apertures of Eustachian tubes and a pharyngeal tonsil. In depth it is possible to examine a soft palate, a fauces, a root of tongue and an input in a larynx. 76 Thus are opened frontal , cells of a trellised bone and a sinus of the basic bone, in the cervical part of a spinal cord is inevitably damaged, therefore, if it is necessary to investigate a spinal cord, it take to Khark. Except described, various ways from which the greatest attention the way deserves a skull on are offered more many. After it? To a way the Back dermal flap of a head from cervical vertebra, exarticulate an occipital bone, cutting solderings with I cervical vertebra, and a spinal cord and a skull to front. Between an occipital bone and an atlas the space in which the back wall of a pharynx is visible, and after its section - postnarises, nasal courses, a fauces, a soft palate, a root of tongue and an input in a larynx is formed.