Diagnostic imaging of the nasolacrimal drainage system. Part I. Radiological anatomy of lacrimal pathways. Physiology of tear secretion and tear outflow

During works for a communal athletic-ground at Tarquinia in the district “Il Giglio”, which took place between 2000 and 2001, some slight remains of ancient structures of the Late-Republican and Early-Imperial Age were accidentally discovered. The Soprintendenza per i Beni Archeologici dell’Etruria Meridionale then undertook extensive excavations, documenting a farm and an interesting hydraulic system, part of which had already been found not far from there, at Tarquinia in the district “Gabelletta”. The part of the plain of Tarquinia that is located at the foot of the hill, where Corneto was later established in the Middle Ages, was intensively cultivated with a drainage system and very extensive canalizations, because of the natural fertility of the soil and the richness of water-supplies in this region. It is thus likely that the flax for which Tarquinia was famous in antiquity was cultivated in these fields, and that, towards the end of the second Punic War, this farmland supplied Rome with the flax to make the sails destined for the military enterprise.

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Radiological anatomy: techniques and modalities in diagnostic imaging

La radiologia medica ◽

10.1007/s11547-009-0441-3 ◽

2009 ◽

Vol 114 (5) ◽

pp. 835-836

Author(s):

R. Pozzi Mucelli

Keyword(s):

Diagnostic Imaging ◽

Radiological Anatomy

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Radiological Anatomy of the Lacrimal Drainage System

Endoscopic Dacryocystorhinostomy ◽

10.1007/978-981-15-8112-0_4 ◽

2020 ◽

pp. 35-53

Author(s):

Nishi Gupta

Keyword(s):

Drainage System ◽

Radiological Anatomy ◽

Lacrimal Drainage System ◽

Lacrimal Drainage

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Stereological Analyses of Hepatocyte Ultrastructure Monitor Arsenic Liver Burdens

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s1431927600001896 ◽

1980 ◽

Vol 38 ◽

pp. 442-443

Author(s):

E. M. B. Sorensen ◽

R. R. Mitchell ◽

L. L. Graham

Keyword(s):

Drainage System ◽

Water Levels ◽

Ultrastructural Changes ◽

Hepatocyte Ultrastructure ◽

Lepomis Cyanellus ◽

Large Numbers ◽

Activation Data ◽

Water Analyses ◽

Municipal Lake ◽

Green Sunfish

Endemic freshwater teleosts were collected from a portion of the Navosota River drainage system which had been inadvertently contaminated with arsenic wastes from a firm manufacturing arsenical pesticides and herbicides. At the time of collection these fish were exposed to a concentration of 13.6 ppm arsenic in the water; levels ranged from 1.0 to 20.0 ppm during the four-month period prior. Scale annuli counts and prior water analyses indicated that these fish had been exposed for a lifetime. Neutron activation data showed that Lepomis cyanellus (green sunfish) had accumulated from 6.1 to 64.2 ppm arsenic in the liver, which is the major detoxification organ in arsenic poisoning. Examination of livers for ultrastructural changes revealed the presence of electron dense bodies and large numbers of autophagic vacuoles (AV) and necrotic bodies (NB) (1), as previously observed in this same species following laboratory exposures to sodium arsenate (2). In addition, abnormal lysosomes (AL), necrotic areas (NA), proliferated rough endoplasmic reticulum (RER), and fibrous bodies (FB) were observed. In order to assess whether the extent of these cellular changes was related to the concentration of arsenic in the liver, stereological measurements of the volume and surface densities of changes were compared with levels of arsenic in the livers of fish from both Municipal Lake and an area known to contain no detectable level of arsenic.

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