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The uncinate process can be attached to either the lateral nasal wall, on the lamina papyracea (50%), the anterior cranial fossa, on the ethmoidal roof (25%), or the middle concha (25%). The superior attachment of the uncinate process determines the drainage pattern of the frontal sinus.
The frontonasal duct may or may not drain into the ethmoidal infundibulum - this is determined by the place of attachment of the uncinate process of the ethmoid bone: if the uncinate process is attached to the lateral nasal wall, the frontonasal duct will open directly into the middle nasal meatus; if otherwise, it will drain into the infundibulum.
The ethmoid bone is an anterior cranial bone located between the eyes. [3] It contributes to the medial wall of the orbit, the nasal cavity, and the nasal septum. [3] The ethmoid has three parts: cribriform plate, ethmoidal labyrinth, and perpendicular plate.
Uncinate process of ethmoid bone, a process located in the nasal cavity; Uncinate process of vertebra, a hook-shaped process on the lateral borders (side edges) of the superior (top) surface of the vertebral bodies of the third to the seventh cervical vertebrae; Uncinate process of pancreas, a small projection from the pancreas
Below the bulla ethmoidalis and hidden by the uncinate process of the ethmoid is the opening of the maxillary sinus (ostium maxillare); an accessory opening is frequently present above the posterior part of the inferior nasal concha. The inferior meatus is the largest of the three. It lies below the inferior concha and above the nasal cavity.
Uncinate process of ethmoid bone, close to nasal sinus Topics referred to by the same term This disambiguation page lists articles associated with the title Uncinate .
The middle turbinates insert anteriorly into the frontal process of the maxilla and posteriorly into the perpendicular plate of the palatine bone. [1] There are three mutually perpendicular segments of the middle turbinate: from proximal to distal, there is the horizontal segment ( axial plane ), the basal lamella ( coronal plane ), and the ...
The crista galli (Latin: "crest of the rooster") is a wedge-shaped, vertical, midline upward continuation of the perpendicular plate of the ethmoid bone of the skull, [1] projecting above the cribriform plate [2] into the cranial cavity.