Die stärkere Vergrößerung zeigt die basalen Abschnitte zweier benachbarter Papillae foliatae, die durch einen Graben voneinander getrennt sind. Mehrere nebeneinander liegende Geschmacksknospen, die die volle Epithelhöhe einnehmen, sind zu sehen. Die tief ins Epithel eindringenden Bindegewebspapillen enthalten zahlreiche Blutkapillaren.

Legende:

	Taste bud
	Epithelial furrows of a foliate papilla
	Furrow between two foliate papillae
	Blood capillaries (lumina)
	Connective tissue papilla

HOPA

Structures	Colour
Nuclei	brown
Cytoplasm	grey-blue
Connective-tissue fibres - Collagen - Reticular - Elastic	blue blue -
Myocytes	grey-blue to grey-green
Erythrocytes	yellow-orange

Dyes:

HOPA = Hemalaun, Orange G, Phosphormolybdenic acid, Aniline blue

Cell nuclei are stained with hemalaun or Weigerts iron-hematoxylin and then counterstained with a dye mixture of orange-phosphormolybden with aniline blue.

Geschmacksknospen (Caliculi gustatorii) sind Chemorezeptoren, die sich in den vorderen zwei Drittel der Zunge im geschichteten Plattenepithel befinden. Beim Menschen kommen sie vor allem in den Papillae vallatae und den Papillae fungiformes vor. Ihr Vorkommen in den Papillae foliatae ist typisch für das Kaninchen, von dem dieses Präparat stammt. Die Chemorezeptoren können vier Hauptkategorien von Geschmacksempfindungen wahrnehmen: sauer, süß, bitter und salzig.

HistoNet2000 - Help

1. Organization of the screen surface

Right side: histologic specimen
Left side: information about the specimen (above) and general program functions (below)

2.Histologic specimen

Pull the mouse across the histologic specimen for training purposes. A small square with exclamation marks (dynamic labels) will appear where there is an important structure. You should then decide what structure this could be. To check your result, simply click the appropriate square, and the correct label will appear. The option “marked” allows you to see all labels for all structures simultaneously. These can be removed by clicking “unmarked”. This reactivates the dynamic labels.

3. Complementary information

Info: general information about the specimen, as well as a list of the dynamic labels
Drawing: schematic drawing of the specimen
Staining: information about the staining method for this specimen
Knowledge: short texts with basic histologic information, presently deactivated

4. General Program Functions

Home: returns you to the “start” page
Tutor: how to contact the HistoNet Team
Help: Instructions for Use appear
Exit: closes down the HistoNet program
Boxes: goes back to the other specimen of a topic
VM: provides virtual microscopy

We hope you will enjoy working with HistoNet2000 and learn a lot from it!

Specimen Nr. 01C

Specimen:

Staining:

Magnification:

Important structures :

Legende:

HOPA

Dyes:

HistoNet2000 - Help