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Due to Atralin (Tretinoin)- Multum rich blood supply of the nose, this is a common occurrence. The cause can be local (such as trauma), or systemic (such as hypertension). Special sensory innervation refers to the ability of the nose to smell. This is carried out by the olfactory nerves. The olfactory bulb, part of the brain, lies on the superior surface of the cribriform plate, above Atralin (Tretinoin)- Multum nasal cavity. Branches of the olfactory nerve run through the cribriform plate to provide special sensory innervation to the nose.

General sensory innervation to the septum and lateral walls is delivered by Atralin (Tretinoin)- Multum nasopalatine nerve (branch of maxillary Atralin (Tretinoin)- Multum and the nasociliary nerve (branch of the ophthalmic nerve).

Innervation to the external skin of the nose is supplied by the trigeminal nerve. Note the close relationship of the olfactory bulb and cribriform plateA fracture of the cribriform plate can occur as a result of nose trauma. It is either fractured directly by the trauma, or by fragments of the ethmoid bone. A fractured cribriform plate can penetrate the meningeal linings of the brain, causing leakage of cerebro-spinal fluid.

Exposing the brain to young model 8 12 outside environment like this increases the risks of meningitis, encephalitis and cerebral Atralin (Tretinoin)- Multum. The olfactory bulb lies on the cribriform plate and can be damaged irreversibly by the fracture. In this case, the patient may present with anosmia (loss of smell). Use the information in Atralin (Tretinoin)- Multum article to help you with the answers.

Our 3D anatomical model provides you with hands-on, interactive and valuable learning tool right here on your device. To access the TeachMeAnatomy 3D Model, you must be a premium subscriber. The nose is an olfactory and respiratory organ. The are three conchae - inferior, middle and superior.

Atralin (Tretinoin)- Multum nose has a very rich vascular supply - this allows it to effectively change humidity and temperature of inspired air. It is most likely to occur in the anterior third of the nasal cavity - this area is known as the Kiesselbach area. It is lined by olfactory cells with olfactory receptors. By TeachMeSeries Ltd (2021)Nasal Conchae Atralin (Tretinoin)- Multum out of the lateral walls of the nasal cavity are curved shelves of bone.

It opens into the inferior meatus. It allows the middle ear to equalise with the atmospheric air pressure. By TeachMeSeries Ltd (2021) Clinical Relevance: Spread of Infection As the auditory tube connects the middle ear and upper respiratory tract, it is Atralin (Tretinoin)- Multum path by which infection can spread from the upper respiratory tract to the ear.

Gateways to the Nasal Cavity As well as openings for the drainage of structures, nerves, vasculature and lymphatics need to be able to access the Atralin (Tretinoin)- Multum cavity. It contains very small perforations, allowing fibres of the olfactory nerve to enter and exit, At the level of the superior meatus, the sphenopalatine foramen is located.

The nose receives blood from both the internal and external carotid arteries: Internal carotid branches: Anterior ethmoidal artery Posterior ethmoidal artery The ethmoidal arteries are branch of the ophthalmic artery. They descend into the nasal cavity through the cribriform plate External carotid branches: Sphenopalatine artery Greater palatine artery Superior labial artery Atralin (Tretinoin)- Multum nasal arteries In Tiazac (Diltiazem Hcl)- Multum to the rich blood supply, these arteries form anastomoses with each other.

By TeachMeSeries Ltd (2021) Clinical Relevance: Cribriform Plate Fracture A fracture of the cribriform plate can occur as a result of nose trauma. Log In Atralin (Tretinoin)- Multum nose is an olfactory and respiratory Atralin (Tretinoin)- Multum. Removes and traps pathogens and particulate matter from the inspired air. Responsible for sense of smell.



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