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Related Concept Videos

Olfactory Receptors: Location and Structure01:03

Olfactory Receptors: Location and Structure

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The process of olfaction, also known as the sense of smell, is a sophisticated chemical response system. The specialized sensory neurons that facilitate this process, known as olfactory receptor neurons, are situated in an upper segment of the nasal cavity, known as the olfactory epithelium. Olfactory sensory neurons are bipolar, with their dendrites extending from the epithelium's apex into the mucus that lines the nasal cavity. Airborne molecules, when inhaled, traverse the olfactory...
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Nose and Nasal Cavity01:24

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The nose is composed of an observable exterior segment (external nose) and an internal segment within the skull known as the nasal cavity (internal nose). The external nose, visible on the face, consists of a framework of bone and hyaline cartilage enveloped in skin and muscle and lined with a mucous membrane. This structure is supported by the frontal bone, nasal bones, and maxillary bone and is supplemented by a cartilaginous framework comprising the septal nasal cartilage, lateral nasal...
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Olfaction01:25

Olfaction

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The sense of smell is achieved through the activities of the olfactory system. It starts when an airborne odorant enters the nasal cavity and reaches olfactory epithelium (OE). The OE is protected by a thin layer of mucus, which also serves the purpose of dissolving more complex compounds into simpler chemical odorants. The size of the OE and the density of sensory neurons varies among species; in humans, the OE is only about 9-10 cm2.
The olfactory receptors are embedded in the cilia of the...
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Physiology of Smell and Olfactory Pathway01:20

Physiology of Smell and Olfactory Pathway

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Humans detect odors with the help of specialized cells located in the upper part of the nasal cavity, called olfactory receptor neurons (ORNs). ORNs possess hair-like structures called cilia, which are receptive to sensations from the inhaled air. When an odorant molecule binds to a specific receptor on the cell of the cilia, it leads to a series of events that ultimately cause the ORN to send electrical signals to the olfactory bulb in the brain through the olfactory nerves.
The olfactory...
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Suctioning the Nasopharyngeal Airway01:29

Suctioning the Nasopharyngeal Airway

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Nasopharyngeal suctioning is a procedure to remove secretions from the upper part of the respiratory tract that the patient cannot clear independently. It helps maintain airway patency and prevents complications such as aspiration pneumonia.
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Epistaxis01:30

Epistaxis

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Epistaxis, or nosebleeds, occurs when small, swollen blood vessels in the nasal mucous membrane rupture. Typically, the anterior septum is the primary site of occurrence.
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Related Experiment Video

Updated: May 2, 2026

Endoscopic Septoplasty with Limited Two-line Resection: Minimally Invasive Surgery for Septal Deviation
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Endoscopic Septoplasty with Limited Two-line Resection: Minimally Invasive Surgery for Septal Deviation

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Olfactory function after nasal plastic surgery.

E Razmpa1, B Saedi1, A Safavi1

  • 1Otolaryngology Department, Tehran University of Medical Sciences, Tehran, Iran.

B-ENT
|March 7, 2014
PubMed
Summary
This summary is machine-generated.

Rhinoplasty generally does not significantly alter your sense of smell. While some patients experience minor changes, most maintain their pre-surgery olfactory function after nasal surgery.

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Area of Science:

  • Otolaryngology
  • Plastic Surgery
  • Olfactory Science

Background:

  • Nasal plastic surgery (rhinoplasty) is a common procedure.
  • Patients often worry about potential impacts on their sense of smell.
  • Existing research on smell changes post-rhinoplasty is varied.

Purpose of the Study:

  • To investigate the direct impact of rhinoplasty on olfactory function.
  • To assess smell changes in patients with minimal pre-existing nasal conditions and normal pre-operative smell.
  • To provide objective and subjective data on post-surgical olfactory outcomes.

Main Methods:

  • Prospective study of 100 rhinoplasty candidates (2009-2011).
  • Olfactory evaluation included subjective (Visual Analogue Scale, questionnaire) and objective (University of Pennsylvania Smell Identification Test - UPSIT40) measures.
  • Data analyzed based on age, sex, surgical approach, symptoms, and time.

Main Results:

  • No significant overall change in olfactory function was detected post-surgery.
  • Subjectively, 26% improved, 61% had no change, and 13% reported smell deterioration.
  • Closed rhinoplasty showed a statistically significant better smell outcome (P = 0.034).

Conclusions:

  • Rhinoplasty appears to have a minimal impact on pre-existing olfactory status.
  • The majority of patients retain their sense of smell after nasal surgery.
  • Closed rhinoplasty may offer a slight advantage for smell preservation.