The muscles have no tone and no movement during sleep paralysis. Sleep paralysis occurs when falling asleep or when waking up. Vivid terror or stress dreams are associated with sleep paralysis. If the paralysis episodes recur then see a sleep specialist for evaluation. In brief: Sleep paralysis.
Lacrimal sac. The lacrimal sac or lachrymal sac[1] is the upper dilated end of the nasolacrimal duct, and is lodged in a deep groove formed by the lacrimal bone and frontal process of the maxilla. It connects the lacrimal canaliculi, which drain tears from the eye's surface, and the nasolacrimal duct, which conveys this fluid into the nasal cavity.
http://www.medicalook.com. SEARCH. The lacrimal apparatus is the collective design of the lacrimal ducts which secrete tears (the lacrimal fluid,) and a few extra ducts that allow extra lacrimal fluid to drain into the nasal cavity.The almond-like lacrimal gland can be found along the superolateral segment of the orbit.ach lacrimal gland of each individual eye is known to produce about 1 milliliter of lacrimal fluid in a 24 hour period. Aggrevating substances cause greater amounts of fluids, such sand, dust, pollen, or onion, as the conjunctiva requires greater amounts to remain moist.