Aug 25, 2024 · The ethmoid bulla, also known as bulla ethmoidalis, is the largest and most consistent air cell of the anterior ethmoidal air cells. It is a component of the ostiomeatal complex.

The ethmoid bulla (or ethmoidal bulla) is a rounded elevation upon the lateral wall of the middle nasal meatus [1][2]: 377 (nasal cavity inferior to the middle nasal concha) produced by one or more of the underlying middle ethmoidal air cells (which open into the nasal cavity upon or superior to the ethmoidal bulla [2]: 374 [3]). [2]: 377 It ...

The ethmoidal bulla is a raised area located above the edge of the uncinate process of the ethmoid bone in the middle meatus region of the lateral wall of the nasal cavity. It creates a curved opening called the hiatus semilunaris underneath it.

Oct 30, 2023 · The ethmoidal cells are important structures for the skull, responsible for olfactory sensation, humidification, phonation, and ventilation. The labyrinths also form two of the prominent structures of the nasal cavity: the superior and middle nasal concha.

The ethmoidal bulla is the largest air cell in the anterior ethmoidal cell group with the least amount of variability (Standring, 2020). The ethmoidal bulla is located posterior to the frontal recess …

Jan 18, 2025 · Ethmoidal bulla is a small, rounded protrusion located within the ethmoid bone, a sponge-like bone located at the base of the skull. [6] It is an important structure in the anatomy of the nose, as it plays a role in the sense of smell and …

The ethmoid (or ethmoidal) bulla is located superior and posterior to the infundibulum and hiatus semilunaris (see Fig. 1A). A congenitally large ethmoid bulla can therefore encroach on these structures and result in obstruction of the ostiomeatal complex.9

Ethmoid bulla air cells are part of the anterior ethmoid sinuses and make up the superior border of the hiatus semilunaris. (EB:ethmoid bulla, U: uncinate process, MT: middle turbinate)

a bulging of the inner wall of the ethmoidal labyrinth in the middle meatus of the nose, just below the middle nasal concha; it is regarded as a rudimentary concha.

Jun 30, 2024 · The anterior ethmoidal air cells drain to the hiatus semilunaris and middle meatus via the ethmoid bulla, which forms parts of the ostiomeatal complex. The posterior ethmoidal air cells drain to the superior meatus via the sphenoethmoidal recess 2.