WordNet

of or characteristic of low rank or importance
one of lesser rank or station or quality
having an orbit between the sun and the Earths orbit; "Mercury and Venus are inferior planets"
lower than a given reference point; "inferior alveolar artery"
of low or inferior quality
any of various edible tropical marine gastropods of the genus Strombus having a brightly-colored spiral shell with large outer lip
(anatomy) a structure that resembles a shell in shape

PrepTutorEJDIC

(階級・親分・質・程度などが)『下の』,『劣る』, / (位置が)低い,下方の / 目下の者;劣った人
(ほら貝など,大型の)巻き貝 / (ローマ神話で)トリトン(Triton)のほら貝

Wikipedia preview

出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2017/09/04 06:51:10」(JST)

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The inferior nasal concha (inferior turbinated bone or inferior turbinal/turbinate) is one of the turbinates in the nose. It extends horizontally along the lateral wall of the nasal cavity and consists of a lamina of spongy bone, curled upon itself like a scroll. The inferior nasal conchae are considered a pair of facial bones. They are also termed 'inferior nasal turbinates' because they function similar to that of a turbine: As the air passes through the turbinates, the air is churned against these mucosa-lined bones in order to receive warmth, moisture and cleansing. Superior to inferior nasal concha are the middle nasal concha and superior nasal concha which arise from the cranial portion of the skull. Hence, these two are considered as a part of the cranial bones.

It has two surfaces, two borders, and two extremities.

Structure

Surfaces

The medial surface is convex, perforated by numerous apertures, and traversed by longitudinal grooves for the lodgement of vessels.

The lateral surface is concave, and forms part of the inferior meatus.

Borders

Its upper border is thin, irregular, and connected to various bones along the lateral wall of the nasal cavity.

It may be divided into three portions: of these,

the anterior articulates with the conchal crest of the maxilla;
the posterior with the conchal crest of the palatine;
the middle portion presents three well-marked processes, which vary much in their size and form.
- Of these, the anterior or lacrimal process is small and pointed and is situated at the junction of the anterior fourth with the posterior three-fourths of the bone: it articulates, by its apex, with the descending process of the lacrimal bone, and, by its margins, with the groove on the back of the frontal process of the maxilla, and thus assists in forming the canal for the nasolacrimal duct.
- Behind this process a broad, thin plate, the ethmoidal process, ascends to join the uncinate process of the ethmoid; from its lower border a thin lamina, the maxillary process, curves downward and lateralward; it articulates with the maxilla and forms a part of the medial wall of the maxillary sinus.

The inferior border is free, thick, and cellular in structure, more especially in the middle of the bone.

Extremities

Both extremities are more or less pointed, the posterior being the more tapering.

Development

The inferior nasal concha is ossified from a single center, which appears about the fifth month of fetal life in the lateral wall of the cartilaginous nasal capsule.

Additional images

Lateral wall of nasal cavity, showing ethmoid bone in position.
Nasal conchae
Left maxilla. Nasal surface.
Right inferior nasal concha. Medial surface.
Right inferior nasal concha. Lateral surface.
The skull from the front.
Sagittal section of skull.
Roof, floor, and lateral wall of left nasal cavity.
The sphenopalatine ganglion and its branches.
Coronal section of nasal cavities.
Sagittal section of nose mouth, pharynx, and larynx.
Human skull. Inferior nasal concha.
Human skull. Inferior nasal concha.

References

This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

External links

Anatomy figure: 33:01-07 at Human Anatomy Online, SUNY Downstate Medical Center
"Anatomy diagram: 34256.000-1". Roche Lexicon - illustrated navigator. Elsevier. Archived from the original on 2014-01-01.

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Related Pictures

フィットネスの勧め Inferior nasal conchae - www.24wikiss.blogspot.com Concha nasalis inferior Inferior Nasal Concha – Dr. G's Toothpix INFERIOR NASAL CONCHA | Human Anatomy ・上縁に以下の3つの突起を有する。

★リンクテーブル★

リンク元	「下鼻甲介」
関連記事	「inferior」「inferio」

「下鼻甲介」

Inferior nasal concha or inferior turbinate/turbinal
	Medial wall of left orbit. (Inferior nasal concha visible in center in yellow.)
	Figure 1: Lateral wall of right nasal cavity showing inferior concha in situ. (pink)
Details
Articulations	Ethmoid, maxilla, lacrimal and palatine bone
Identifiers
Latin	Concha nasi inferior,; concha nasalis inferior
Dorlands; /Elsevier	c_50/12253882
TA	A02.1.08.001; A06.1.02.015
FMA	54736
	Anatomical terms of bone [edit on Wikidata]