What is the primary purpose of the lacrimal bones?

The primary purpose of the lacrimal bones is to facilitate tear production. Located in the medial wall of each orbit, the lacrimal bones house the lacrimal fossa, which holds the lacrimal sac. This sac is integral to the drainage system of tears, allowing for the efficient transport of tears from the eye surface into the nasal cavity. This function is crucial for maintaining eye health and comfort, as tears are essential for lubrication and protection against infection. While the other options relate to different anatomical structures and functions, they do not pertain to the specific role of the lacrimal bones in the tear production and drainage process.