Histology

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Back 1

1. Labium oris
Musculus Obicularis Oris is present (skeletal muscle) On the external surface is the skin with its adnexa On the inner surface is the mucosa (stratified squamous epithelium + lamina propria) and submucosa with mixed glands “Labial glands“).

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Back 2

2. Apex lingua
Underneath the papillae, there are mucous and serous glands, pockets of adipose tissue, and a layer of skeletal muscle and connective tissue.
The skeletal muscle is arranged in three different planes, which allows the tongue to perform a number of complex movements.

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Back 3

3. Papilla Circumvallata
Surrounded by a deep furrow, where Ebners Glands open. Epithelia covering papilla (stratified squamous non-keratinizing). Taste buds are located on the lateral sides, in the epithelium.

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Back 4

4. Tonsilla lingualis A lymphatic structure that contains abundant germinal centers where immune cells undergo differentiation.
Surface is covered with stratified squamous epithelium

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Back 5

5. Soft palate:
On the nasal side it is possible to see: – pseudostratified epithelium - lamina propria - submucosa with mixed glands “Nasal Glands“

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Back 6

5. Soft palate:
On the oral side it is possible to see: – lining mucosa of the mouth cavity - submucosa with mucous glands “Palatine Glands“

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Back 7

5. Hard palate:
Covered by masticatory mucosa (stratified squamous epithelium) Note bone at the top, mucosa at the bottom and a large amount of salivary tissue between.
A short distance from the lamina propria there is a large duct.