HISTOLOGYTRACTUS DIGESTIVUSBBDM PROBLEMS 5

TRACTUS DIGESTIVUS

1. Labium Oris2. Oesophagus3. Gaster4. Duodenum5. Jejunum6. Ileum7. Colon8. Rectum + Anus

Mouth/Labium Oris

Such as: Epitel, fibroelastic fiber, striated muscleThree layers:• Pars cutanea• Pars intermedia• Pars mucosa

tongueFormed by: striated muscleHas 4 papilla:• papilla filiformis• papilla fungiformis• papilla circumvalata• papilla foliata

1. Papilla Filiformis 2. Papilla Fungiformis

3. Papilla Circumvalata 4. Papilla Foliata

Oesophagus

Layers in oesophagus :1. Epitel2. Mucosa3. Sub Mucosa glandula4. Tunica Muscularis 3 layers 5. Tunica Adventitia

Oesophagus Cardia

Layers:1. Epitel2. Lamina Propria oesophagus : loose connective tissue

gaster : glandula cardiaca3. Sub Mucosa oesophagus : glandula oesophagus4. Tunica Muscularis oesophagus: smooth musle circulair & longitudinal

gaster: 3 layers smooth muscle5. Tunica Adventitia

GasterLayers in the gaster:1. Epitel columner

simplex. 2. Lamina propria

glandula cardiaca3. Submucosano

glandula4. Tunica Muscularis 3

layers of smooth muscle

5. Tunica serosa

parietal cells dan chief cells(in the lamina propria gaster fundus)

Duodenum• Epitel columner simplex with goblet• Submucosa : glandula brunner•Lamina propria : sometimes has nodulud lymphaticus

JEJUNUM• Plica circularis Kerckringi• Epitel columner simplex with

goblet in the villi• Tunica propria : Kripte Lieberkhun sel Paneth

• Submucosa : lymphonoduli• Muscularis : circulair &

longitudinal• Adventitia : serosa

DUODENUM

• Villi : high, goblet >> epitel columner simplex• Tunica propria : plaques peyeri• Submucosa : nodulus lymphaticus• Muscularis : sirculair & longitudinal (2 layers)• Tunica serosa

APPENDIX• No villies• Lamina propria : noduli lymphatici•Muscularis mucosa : imperfectly developed• Sub mucosa : thick with vasculer & neuron• Muscularis• Adventitia serosa

COLON

• Have no villi• Epitel columner simplex with goblet >>, especially in the kripte• Lamina propria : noduli lymphatici•Muscularis : 2 layers (circulair & longitudinal)Longitudinal muscularis taenia koli

RECTUM ANUS

• Transition of the mucosa transition of the epitel• Epitel :

Epitel columner simplexEpitel squamus complex non keratinEpitel squamus complex with keratin

• Glandula circum analis:o Wall = made by kuboid cells, nucleus in the middle, sitoplasma red

o Lumen = wide

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