We think our bodies shut down for the night when we fall asleep. But sometimes theyâre still going â kicking, gasping, even making us wet the bed. These abnormal behaviors are called parasomnias, disorders involving involuntary physical activity that happens during sleep.
lacrimal apparatus a group of organs concerned with the production and drainage of tears; it is a protective device that helps keep the eye moist and free of dust and other
- watery liquid found in the anterior cavity of the eye. The lacrimal glands are the: - mucous membrane linings of the eyelids covering the anterior portion of the sclera. - anatomic structures that produce tears. - jellylike substances found behind the lens in the posterior cavity of the eye. - oil glands found in the upper and lower edges of the eyelids. anatomic structures that produce tears.