What is the inferior nasal concha?

The inferior nasal concha is an independent, curved bony plate that projects into the nasal cavity from the lateral wall. Unlike the superior and middle conchae, which are part of the ethmoid bone, it is a separate bone.

How does the inferior nasal concha differ from other nasal conchae?

The inferior nasal concha is a separate bone, while the superior and middle conchae are part of the ethmoid bone. This structural independence affects its articulation and clinical relevance.

What are the key surfaces of the inferior nasal concha?

It has two main surfaces: Medial surface: Smooth and convex, facing the nasal septum. Lateral surface: Deeply concave, forming part of the medial wall of the inferior nasal meatus.

What structures does the superior border of the inferior nasal concha articulate with?

The superior border articulates anteriorly with the conchal crest of the maxilla and posteriorly with the conchal crest of the palatine bone. It also gives rise to three processes: lacrimal, maxillary, and ethmoidal.

What is the clinical significance of the lacrimal process on the inferior nasal concha?

The lacrimal process helps form the nasolacrimal canal by articulating with the maxilla. This is important for tear drainage, and surgical fracture of the concha may be used to correct related anomalies.

How are the anterior and posterior ends of the inferior nasal concha described?

Both ends taper to a point: Anterior end: Narrow and pointed. Posterior end: Even more slender and tapered.

What is the function of the inferior nasal concha in the nasal cavity?

It projects medially into the nasal cavity, helping to increase surface area for air filtration and humidification. Its lateral surface also contributes to forming the inferior nasal meatus.

Inferior Nasal Concha – Anatomy & Function

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