Dab tsi yog qhov txawv nruab nrab ntawm lub plab plab thiab lub plab zom mov?
Dab tsi yog qhov txawv nruab nrab ntawm lub plab plab thiab lub plab zom mov?

Video: Dab tsi yog qhov txawv nruab nrab ntawm lub plab plab thiab lub plab zom mov?

Video: Dab tsi yog qhov txawv nruab nrab ntawm lub plab plab thiab lub plab zom mov?
Video: creepy story-nyab xab yob nruab hlis noj mov kem plab tuag ua dab txau ntshai 2024, Lub rau hli ntuj
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plab plab yog indentations hauv plab uas qhia txog kev nkag mus rau 3-5 tubular zoo li tus kab mob plab . Lawv tob dua hauv pylorus tshaj li lawv hauv lwm qhov ntawm plab . Tib neeg plab muaj ntau lab ntawm cov no qhov uas dot nto ntawm lub hauv ob sab phlu epithelium.

Hais txog qhov no, hom qog nqaij hlav yog dab tsi?

Cov peev txheej qog (los yog oxyntic qog ), muaj nyob hauv lub hauv paus thiab lub cev ntawm plab . Lawv yog cov yooj yim yuav luag ncaj hlab, ob los yog ntau tshaj ntawm uas qhib rau hauv ib lub ducts. Oxyntic txhais tau tias yog kua qaub-zais thiab lawv tso cov tshuaj hydrochloric acid (HCl) thiab qhov tseem ceeb.

Tsis tas li, dab tsi ua lub plab ua? Cov plab Secretes HCl, Pepsinogen, Mucus, Mob plab Lipase, thiab Intrinsic Factor. Lining ntawm plab Thaum so yog muab pov rau hauv tuab, velvety folds hu ua rugae. Cov no muaj microscopic invaginations, hu ua mob plab , uas txhua qhib rau plaub lossis tsib plab hnyuv . Cov qog nqaij hlav tuaj nyob hauv ob hom.

Tsis tas li kom paub yog, 3 yam mob qog noj ntshav yog dab tsi?

Cov qog no yog tubules nqaim muaj peb hom cell loj: zymogenic, parietal, thiab mucous caj dab hlwb. Nyob rau hauv lub hauv paus ntawm lub caj pas yog cov zymogenic (chief) hlwb, uas xav tias yuav tsim cov enzymes pepsin thiab rennin. (Pepsin zom cov protein, thiab rennin curdles mis.)

Lub luag haujlwm ntawm cov qog nqaij hlav plab yog dab tsi?

Cov plab caj pas yog lub hauv paus secretory unit ntawm lub plab . Cov plab qog yog ib qho tseem ceeb ntawm lub cev vim tias nws zais plab kua txiv thiab tiv thaiv hnoos qeev. Mucus tsho tiv no plab thiab pab nws dilute enzymes thiab acids thaum lub sij hawm digestive txheej txheem.

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