The __________ sinuses are located between the eyes.

The ethmoid sinuses are indeed located between the eyes. These paranasal sinuses are situated within the ethmoid bone, which is a critical structure in the skull that contributes to both the nasal cavity and the orbits of the eyes. The ethmoid sinuses consist of a complex series of air cells that help to lighten the weight of the skull, humidify and warm the air we breathe, and contribute to the resonance of the voice.

Understanding the anatomical positioning of these sinuses is crucial in the context of various medical conditions that may affect the sinuses, such as sinusitis or nasal polyps, particularly when these conditions produce symptoms related to the eyes or require surgical intervention. In contrast, the other types of sinuses mentioned do not have the same anatomical location relative to the eyes, making the identification of the ethmoid sinuses as the correct answer clear and justified.