Term
| What divides the chamber of the nose into two nasal passages? |
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Definition
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Term
| The air space housed by the external nose is referred to as what? |
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Definition
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Term
| The nasal cavity on the skull is referred to as what? |
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Definition
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Term
| The inferior margin of the nasal aperture has a bony prominence known as what? |
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Definition
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Term
| The posterior openings of the nasal passages are known as what? |
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Definition
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Term
| Two choanae join to form what in the nose? |
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Definition
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Term
| What forms the roof of the nasal cavities and the superior portion of the lateral wall? |
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Definition
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Term
| What forms the superior portion of the nasal septum? |
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Definition
| Perpendicular plate of the ethmoid bone |
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Term
| Which nasal conchae are part of the ethmoid? |
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Definition
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Term
| What functions to increase the surface area of the nasal mucosa? |
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Definition
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Term
| What is found in the meatuses lateral to the nasal conchae? |
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Definition
| Openings for communication with the paranasal sinuses and the orbit |
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Term
| The olfactory mucosa is limited to lining what part of the nasal cavity? |
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Definition
| Superior nasal concha and the adjacent portion of the septum |
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Term
| The respiratory mucosa is thickest over what part of the nasal cavity? |
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Definition
| Inferior and middle concha and the septum adjacent to the middle meatus |
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Term
| What controls the vascular plexuses of the respiratory mucosa in the nose? |
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Definition
| Sympathetic GVE innervation from T1 which synapse at the superior cervical ganglion |
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Term
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Definition
| Process in which on nasal cavity is most often more congested than the other. Allows for alternating repair of damaged channels |
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Term
| What provides blood to the nasal cavity? |
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Definition
| Anterior and posterior ethmoidal arteries from the opthalmic artery, sphenopalatine and greater palatine arteries from the maxillary artery, lateral nasal and superior labial arteries from the facial artery |
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Term
| What area of the nose is most susceptible to nose bleeds? |
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Definition
| Anterior inferior region of the nasal septum, known as Kiesselbach's plexus or Little's area |
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Term
| Why is Kisselbach's plexus (aka Little's area) the most common site of nosebleeds? |
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Definition
| Site of anastomoses of nasal arteries |
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Term
| Nosebleeds of the posterior nasal cavity are less common and more serious and involve what artery? |
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Definition
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Term
| Veins in the nose that accompany the maxillary artery drain into what? |
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Definition
| Pterygoid plexus of veins |
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Term
| Veins from the anterior region of the nasal cavities drain into what? |
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Definition
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Term
| Veins that accompany the anterior and posterior ethmoidal arteries drain into what? |
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Definition
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Term
| What innervates the nasal septum? |
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Definition
| Anterior ethmoidal nerve via CN V1 and posterior lateral nasal nerve via CN V2 |
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Term
| Olfactory receptor neurons reach CN I from the nasal septum by passing through what structure? |
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Definition
| Cribiform plate of the ethmoid |
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Term
| What are the paranasal sinuses? |
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Definition
| Frontal sinus, maxillary sinus, sphenoid sinus, ethmoidal air cells |
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Term
| The nasolacrimal duct drains into what part of the nasal cavity? |
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Definition
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Term
| Where is the hiatus semilunaris located and what openings are found there? |
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Definition
| Middle meatus, contains openings of the frontonasal duct, anterior ethmoidal air cells, and the maxillary sinus |
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Term
| The bulla ethmoidalis in the middle meatus contains an opening to what? |
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Definition
| Middle ethmoidal air cells |
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Term
| The posterior ethmoidal air cells drain into what? |
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Definition
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Term
| The region of the pharaynx posterior to the choanae and above the soft palate is referred to as what? |
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Definition
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Term
| What is found within the mucosal coverings of the roof of the nasopharynx? |
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Definition
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Term
| The ring of lymphoid tissues around the nasal and oral openings formed by the various tonsils is referred to as what? |
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Definition
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