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Die Zottenpumpe des Dünndarms

Formal Metadata

Title
Die Zottenpumpe des Dünndarms
Alternative Title
The Villi Pump in the Small Intestine
Author
Contributors
License
No Open Access License:
German copyright law applies. This film may be used for your own use but it may not be distributed via the internet or passed on to external parties.
Identifiers
IWF SignatureD 1382
Publisher
Release Date
Language
Producer

Technical Metadata

IWF Technical DataFilm, 16 mm, LT, 51 m ; F, 5 min

Content Metadata

Subject Area
Genre
Abstract
German
German
Erläuterung der Funktion des Zottenepithels (histologische Bilder). Mechanismus der Zottenpumpe (Trick). Aktivitäten der Zotten im Ruhezustand und nach mechanischer Reizung am Vitalpräparat eines Dünndarmabschnittes vom Hund. Erläuterung der Aktivitätssteigerung der Zottenpumpe durch Medikamente. Bedeutung der Aktivitätshemmung bei Temperaturabfall und im Schockzustand.
English
English
Digested particles of food are taken up in the small intestine. The resorbing surface in the small intestine is increased by finger shaped eversions in the mucous membrane, the villi pump. These villi are movable, by means of pumping movements emptying of the main chylous vessels (e.g. the lymphatic vessels) is furthered. These villi pump are only visible by direct observation with magnifying microscope. In the empty and normotherm intestine, the single villus cantract at irregualr intervals. By means of direct irritation, for instance a pinprick or application of dustlike particles, the villi pump is activated. The number of active villi and the frequency of pumping movements of the individual are increased. The activity of the villi pump reduces when temperature drops, in an acid surrounding and bad circulation. In haemorrhagic shock, turgor loss and prismatic deformation show the irreversible damage of the villi pump.
Keywords
German
German
English
English
IWF Classification
German
German
English
English