Kev txhim kho lub cev thiab lub cev ntawm lub plab Lub plab secretes dej, electrolytes, hydrochloric acid, thiab glycoproteins, suav nrog mucin, qhov tseem ceeb, thiab enzymes (Fig. 24.3). Gastric motility thiab secretion yog tswj los ntawm neural thiab humoral mechanisms.
peb lub plab yog dab tsi?
Cov qog nqaij hlav plab exocrine - tsim los ntawm cov mucous, parietal, thiab cov hlwb tseem ceeb - ua rau kua txiv plab. Cov khoom ntawm cov hlwb endocrine tau tso ncaj qha rau hauv cov hlab ntsha thiab tsis yog ib feem ntawm cov kua txiv hmab txiv ntoo.
5 lub plab zom mov yog dab tsi?
Gastric secretion
Cov kua dej zais cia muajhydrochloric acid, pepsinogen, intrinsic factor, bicarbonate, thiab mucus.
Yuav ua li cas cov kua qaub tawm hauv plab?
hydrochloric acid hauv cov kua txiv hmab txiv ntoo zom cov zaub mov thiab cov enzymes digestive faib cov proteins. Cov kua qaub hauv plab kuj tua cov kab mob.
Yuav ua li cas enzyme secreted los ntawm plab?
Pepsin yog lub plab enzyme uas ua haujlwm zom cov protein uas pom hauv cov zaub mov noj. Gastric Chief cells secrete pepsin ua ib qho zymogen uas tsis muaj zog hu ua pepsinogen.
