《组织学与胚胎学 Histology and Embryology》课程PPT教学课件讲稿（英文版）Chapter 14 Digestive gland

Chapter 14 Digestive gland

Chapter 14 Digestive gland

small gland: fundis gland, small intestinal gland large gland: salivary gland pancreas, liver

---small gland: fundis gland, small intestinal gland ---large gland: salivary gland, pancreas, liver

1 Salivary gland 1) General structure of exocrine gland Capsule: CT, which separate the parenchyma into lobules --lobule 浆性腺泡 粘液性腺泡 盟上皮细胞 混合性腺泡 。盛 闰管 3a;9

1. Salivary gland 1) General structure of exocrine gland ---Capsule: CT, which separate the parenchyma into lobules ---lobule:

① acinus: a serous acinus structure. pyramidal or cuboidal ound basally-located N apical: zymogen granule-acidophilic e basal: basophilic-RER, ribosome function: secret salivary amylase

① acinus: a. serous acinus: structure: pyramidal or cuboidal round basally-located N apical: zymogen granule-acidophilic basal: basophilic-RER, ribosome function: secret salivary amylase

b, mucous acinus. structure pale-stained, slight-blue, flattened n against the basal membrane mucinogen granule Golgi, RER, mitochondria c. mixed acinus: several serous cell attached to mucous acinus - serous demilune

b. mucous acinus: structure: pale-stained, slight-blue, flattened N against the basal membrane mucinogen granule Golgi, RER, mitochondria c. mixed acinus: several serous cell attached to mucous acinus – serous demilune

②duct a. intercalated duct simple squamous epi sImple cuboidal epl, connect with acinus 0、00做 4 3000Ay oao 浆液性 8

②duct: a. intercalated duct: simple squamous epi. simple cuboidal epi. connect with acinus

浆陂性腺泡 粘液性腺泡 b. striated duct 上安细 2 tek 一混合性腺泡 (secretory duct): intralobule X ::i 叶间导膂 ● simple columnar epi ●/ tall cel, acidophilic ound, located at apical part longitudinal striation: plasma membrane infolding C. interlobular duct and major duct simple columnar epi. or pseudostratified ciliated columnar epi

b. striated duct (secretory duct): intralobule simple columnar epi. : tall cell, acidophilic round N, located at apical part longitudinal striation: plasma membrane infolding c. interlobular duct and major duct : simple columnar epi. or pseudostratified ciliated columnar epi

2) structural feature of each salivary gland a. parotid gland -serous long intercalated duct, short striated duct

2) structural feature of each salivary gland a. parotid gland: -serous -long intercalated duct, short striated duct

浆液性腺泡 粘液性腺泡 混合性腺泡 一半月 纹沈管 一闰管 小叶间导管 秀 b. submandibular gland -mixed( mainly serous, less mucous and mixed short intercalated duct, long striated duct

b. submandibular gland: -mixed( mainly serous, less mucous and mixed) -short intercalated duct, long striated duct

C. sublingual gland mixed(mainly mucous, more serous and mixed) -more demilunes no intercalated duct under-developed striated duct

c. sublingual gland: -mixed(mainly mucous, more serous and mixed) -more demilunes, no intercalated duct, under-developed striated duct