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