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DIGESTIVE SYSTEM
TONGUE, TOOTH, TOOTH DEVELOPMENT

ESOPHAGUS, STOMACH     BOWEL     LIVER, PANCREAS     SALIVARY GLANDS

FILIFORM PAPILLAE OF THE TONGUE
     Stained with haematoxylin and eosin

1 - epithelium covering papilla
      (stratified squamous keratinizing)
2 - keratinized layer of the epithelium
3 - core of the papilla (lamina propria
      of the mucosa of dorsal surface of the tongue)
2 - tongue muscles

LEAF SHAPED PAPILLAE OF THE TONGUE
     Stained with haematoxylin and eosin

1 - epithelium covering papilla
      (stratified squamous nonkeratinizing)
2 - core of the papilla (lamina propria
      of the mucosa of dorsal surface of the tongue)
3 - taste buds

CIRCUMVALLATE PAPILLAE OF THE TONGUE
     Stained with haematoxylin and eosin

1 - epithelium covering papilla
      (stratified squamous nonkeratinizing)
2 - core of the papilla (lamina propria
      of the mucosa of dorsal surface of the tongue)
3 - taste buds

TOOTH
     Nonstained

1 - enamel
2 - dentine
3 - Retcius lines
4 - dentine tubules

TOOTH DEVELOPMENT - ENAMEL ORGAN
     Stained with haematoxylin and eosin

1, 3, 4 - enamel organ
1 - internal cells of the enamel organ
      (these cells will be ameloblsats)
2 - dental papilla
3 - external cells of the enamel organ
4 - cells forming the main bulk of
      the enamel organ (stellate reticulum)
5 - dental follicle
6 - epithelium of oral cavity

TOOTH DEVELOPMENT - FORMATION OF DENTAL TISSUES
     Stained with haematoxylin and eosin

1 - ameloblasts (former external cells of the enamel organ)
2 - enamel
3 - dentine (predentine)
4 - odontoblasts (cells which covered the top of dental papilla)
5 - dental pulp (former dental papilla)

TOOTH DEVELOPMENT - FORMATION OF DENTAL TISSUES
     Stained with haematoxylin and eosin

1 - ameloblasts
2 - enamel
3 - dentine (predentine)
4 - odontoblasts
5 - dental pulp
  border between enamel and dentine
  is marked with dot line

ESOPHAGUS, STOMACH     BOWEL     LIVER, PANCREAS     SALIVARY GLANDS

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