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Related to ethmoidal notch: fossa for lacrimal gland, Sagittal sulcus, nasal spine, apertura sinus frontalis, Fovea trochlearis
an oblong gap between the orbital parts of the frontal bone in which the ethmoid bone is lodged.
Synonym(s): incisura ethmoidalis [TA]
The notch separating the two orbital portions of the frontal bone.
See also: notch
eth·moi·dal notch(eth-moydăl noch) [TA]
Oblong gap between orbital parts of frontal bone in which ethmoid bone is lodged.