Problems in the upper lacrimal system have often been under-recognized as a cause of epiphora. In this review, we discuss the anatomy of the upper lacrimal system as well as the assessment of tear ...

One can see that the problems associated with the upper lacrimal drainage system can be complex. We can begin to consider these problems by first establishing whether true epiphora exists.

Canaliculitis is an infection of the lacrimal drainage system, specifically affecting the canaliculi, which are small ducts that drain tears from the eye into the nasal cavity. This condition can ...

The absence of such a group precluded the direct comparisons essential for robust analysis. Experimental endoscopic comparison of the normal anatomy of the lacrimal system in asymptomatic children ...

Dacryocystitis is an infection of the lacrimal sac, often resulting from nasolacrimal duct obstruction (NLDO), which can lead to tears not draining properly. This condition can affect individuals ...

Jan. 15, 2025 — New observational data and simulation models have confirmed a new type of planet unlike anything found in the Solar System. This provides another piece of the puzzle to ...

Jan. 28, 2025 — A new study explores the effects of both recent and lifetime cannabis use on brain function during cognitive tasks. The study, the largest of its kind ever to be completed ...

National Institute of Diabetes and Digestive and Kidney Diseases. Acid reflux (GER & GERD) in adults. American Society of Gastrointestinal Endoscopy. Quick anatomy lesson: Human digestive system.

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Almost all infants with a “membranous” CNLDO can experience spontaneous resolution of the condition during the first few months of life with proper hydrostatic massage. However, a small proportion of ...

Enteric viruses can be transported axonally, along the enteric nervous system, through the vagus nerve and prevertebral ganglion to connect with the central nervous system, and also via the fluidic ...

A healthy person can have some minor variations in the diaphragm's anatomy. For example, the left or right side may be slightly higher ... and is involved in other body processes like urination and ...