scroll to top
Stuck on your essay?
Get ideas from this essay and see how your work stacks up
Word Count: 1,439
Rhinitis is defined as an inflammation of the nasal mucosa and it is characterized by nasal obstruction rhinorrhea sneezing and pruritits The etiologies of rhinitis can be broadly classified into 4 main categories allergic infectious and non-allergic non-infectious vasomotor rhinitis Allergic rhinitis is a mediated reaction to certain environmental agents often a type of pollen As the name describes some type of pathogen is evident in infectious rhinitis Most commonly viruses are the culprit which then may allow a secondary bacterial infection to flourish Fungal infections are more commonly seen in immunocompromised patients Non-allergic non-infectious rhinitis is a broad category which encompasses all other forms of rhinitis including ones of an idiopathic etiology In this category certain elements illicit a hyperactive response from the sympathetic and parasympathetic nervous system andor a non-IgE mediated release of vasoactive mediators These elements include drugs hormones and irritants even cold air Other causes of these responses can also be due to an eosinophilia or mastocytosis in the nasal mucosa or physical or mental stress In the majority of cases 60-70 the cause of non-allergic non-infectious rhinitis is unknown In the following text the topic of vasomotor rhinitis will be explored further including the pathophysiology prevention and treatment of this conditionThere are a number of mechanisms which interact in the nose to allow it to function appropriately in a variety of environments The autonomic nervous system controls the blood supply into the nasal mucosa and the secretion of mucus The diameter of the resistance vessels in the nose is mediated by the sympathetic nervous system while the parasympathetic nervous system controls glandular secretion and to a lesser extent exerts an effect on the capacitance vessels Either a hypoactive sympathetic nervous system or a hyperactive parasympathetic nervous system can engorge these vessels creating a increased interstitial edema and thus congestion Activation of the parasympathetic nervous system can also increase mucosal secretions leading to excess rhinorrheaOther theories state that there is
@Kibin is a lifesaver for my essay right now!!
- Sandra Slivka, student @ UC Berkeley
Wow, this is the best essay help I've ever received!
- Camvu Pham, student @ U of M
If I'd known about @Kibin in college, I would have gotten much more sleep
- Jen Soust, alumni @ UCLA