文档介绍：Digestive
tract
Light C
Dark C
Taste pore
Taste bud
filiform and fungiform papillae ( HE)
circumvallated papillae(HE)
Tongue foliate papillae(HE)
Foliate papillae-taste bud (HE)
Taste pore
● mucous membrane of tongue
Lingual papillae: filiform, fungiform & circumvallated.
Tast bud: dark C, light C & basal C.
Esophagus
Esophageal gland
epithelium
Esophagus
:
● Epi.: stratified squamous. Non-keratinized
● lamina propria: CT.
● muscularis mucosa: boudles of
: esophageal glands, mucous.
: inner circular, outer longitudinal
: fibrosa.
upper1/3: skeletal M.
middle: mixed.
Lower1/3: smooth M.