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The human nose is the first organ of the respiratory system. It is also the principal organ in the olfactory system. The shape of the nose is determined by the nasal bones and the nasal cartilages, including the nasal septum, which separates the nostrils and divides the nasal cavity into two. The nose has an important function in breathing.
maxillary nerve. Identifiers. Latin. rami nasales posteriores superiores (mediales [1] et laterales [2]) Anatomical terms of neuroanatomy. [ edit on Wikidata] The ( medial and lateral) posterior superior nasal nerves are branches of the maxillary nerve (CN V2) [3] : 496 that arise in the pterygopalatine fossa from pterygopalatine ganglion [3 ...
Nerves of septum of nose. Right side. (Nasociliary is rightmost yellow line.) The nasociliary nerve is a branch of the ophthalmic nerve (CN V 1) (which is in turn a branch of the trigeminal nerve (CN V) ). It is intermediate in size between the other two branches of the ophthalmic nerve, the frontal nerve and lacrimal nerve.
Sensory innervation to the head and neck. The external nasal nerve can be seen emerging from beneath the nasal bone (see tip of black arrow). The external nasal nerve is the terminal branch of the anterior ethmoidal nerve (its continuation beyond the inferior border of the nasal bone).
The nasopalatine nerve (also long sphenopalatine nerve: 496 ) is a nerve of the head. It is a sensory branch of the maxillary nerve (CN V 2 ) that passes through the pterygopalatine ganglion (without synapsing) and then through the sphenopalatine foramen to enter the nasal cavity , and finally out of the nasal cavity through the incisive canal ...
The nasal cycle is an alternation in both time and between left and right sides, with the total resistance in the nose remaining constant. The asymmetric airflow may have some benefit to overall olfactory sensitivity. [7] In patients with a fixed septal deviation and intermittent nasal obstruction, the interplay of the nasal cycle becomes ...
Derived from the embryonic nasal placode, the olfactory nerve is somewhat unusual among cranial nerves because it is capable of some regeneration if damaged. The olfactory nerve is sensory in nature and originates on the olfactory mucosa in the upper part of the nasal cavity.
The anterior ethmoidal nerve is a nerve of the head. It is a branch of the nasociliary nerve (itself a branch of the ophthalmic nerve (V 1)). It arises in the orbit, and enters first the cranial cavity and then the nasal cavity. It provides sensory innervation to part of the meninges, parts of the nasal cavity, and part of the skin of the nose.
Internal nasal branches of infraorbital nerve; Details; From: infraorbital nerve: Identifiers; Latin: rami nasales interni nervi infraorbitalis: TA98: A14.2.01.062: TA2: 6244: FMA: 52985: Anatomical terms of neuroanatomy
Inferior posterior nasal branches of greater palatine nerve; Details; From: greater palatine nerve: Identifiers; Latin: rami nasales posteriores inferiores nervi palatini majoris: TA98: A14.2.01.046: TA2: 6225: FMA: 52823: Anatomical terms of neuroanatomy