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Emotiom

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الكلية كلية الطب     القسم  الجراحة     المرحلة 4
أستاذ المادة الاء عبد الوهاب خليل البياتي       28/05/2017 08:36:02
Emotiom
Autonomic nervous symptom vagal overactivity cause nasal obstruction
Drugs the anticholinergic effects of antihistamine can block the parasympthatic activity and produce an increase of sympthatictone ,hence improve airway

The function of the inferior turbinate is to control the passage of the air through the nose via the nasal cycle,the inferior turbinate is one side enlarged,as and as aresult the air flow through that nostril is restricted.
This reduse the drying effect of airflow and allows for rejuvenation of the nasal lining and cilliary function.
After approximately 4 hours,the turbinate on the other side swells and on previously rested side the turbinate shrinks.
This nasal cycle is a normal physiological mechanism that is present to some extent in all of us but noticed only by some people.
Nasal epithelium is a pseudostratified columnar ciliated mucous
membrane continuous throughout the sinuses. The epithelium contains
goblet cells, which produce mucus, and columnar cells with
mobile cilia projecting into the mucus, beating 12–15 times a second.
The direction of ciliary beats is organized into well-defined pathways,
present at birth. These mucociliary pathways ensure drainage of the
sinuses through their physiological ostium into the nasal cavity
المحاضره الثانيه
The middle meatus is of special significance as it contains the ostiomeatal
complex (OMC). This is an anatomical area in the bony
lateral nasal wall comprising narrow, mucosal lined channels and
recesses into which the major dependent sinuses drain. The OMC
acts physiologically as an antechamber for the frontal, maxillary
and anterior ethmoid sinuses. Irritants and antigens are deposited
there and may cause mucosal oedema. As the clefts in the OMC are
narrow, small degrees of oedema may cause outflow tract obstruction
with impaired ventilation of the major sinuses
The configuration of the structure of the middle meatus are complex and variable,in disarticulated skull ,the maxillary bone has a large opening in its medial wall,the maxillary hiatus.
In articulated skull this is filled by adjacent bones
1 inferior: maxillary process of inferior turbinate bone
2 posterior:perpendicular plate of palatine bone
3Anterosuperior:lacrimal bone
4superior:UP and Bulla ethmoidalis
So portion of maxillary hiatus is left open these osseous attachment which in life filled wth mucous membrane of
1 Mucous membrane ofMM
2Mucous membrane of maxillary sinus
3 Intervening connective tissue and membranous portion of lateral wall

It is the site for the common pathway of the anterior group of sinuses(frontal,anteriorethmoid,mawillary) structure contribute to this area:


المادة المعروضة اعلاه هي مدخل الى المحاضرة المرفوعة بواسطة استاذ(ة) المادة . وقد تبدو لك غير متكاملة . حيث يضع استاذ المادة في بعض الاحيان فقط الجزء الاول من المحاضرة من اجل الاطلاع على ما ستقوم بتحميله لاحقا . في نظام التعليم الالكتروني نوفر هذه الخدمة لكي نبقيك على اطلاع حول محتوى الملف الذي ستقوم بتحميله .
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