Dumbu nerevane mamiriro

Meals - a kwacho zvakakodzera kuti chinhanho womunhu muviri. The dumbu kukonzera mune izvi. dumbu mabasa vari kuunganidza zvokudya zvakawanda, ayo kukwana kubudiswa uye mberi kusimudzira pamusoro ura, apo ndiro kuitwa nezvinovaka muviri. pezvakaitwa zvose izvi zvichiitika mune nemudumbu.

Dumbu: mamiriro uye mashandiro

Zviri negomba tsandanyama reDare zvomudumbu ino, riri pakati yegurokuro uye duodenum 12.

Next, tichawana zvakanaka mashandiro mudumbu uye ongorora mamiriro ayo.

Inoitwa zvinotevera ndokunge zvikamu:

1. Cardiac (chiyamuro) divi. fungidziro Its dzimwe mbabvu 7 kuruboshwe.
2. Arch kana pasi fungidziro riri kuruboshwe kumucheto 5, zvakawanda chaizvo, ayo shwashwa.
3. Muviri mudumbu.
4. Pyloric kana pyloric. Panguva nzira yokubudisa mudumbu ndiro pyloric sphincter kuti Anopatsanura dumbu kubva duodenum 12. Fungidziro wegedhi riri pamberi pamberi rechi8 rworudyi rumbabvu centerline uye shure pakati rechi12 thoracal uye 1st lumbar vertebra.

Maumbirwe muviri afanane chiredzo. Izvi zvinonyanya kuoneka zvakajeka pasi X-ray. The dumbu ane curvature duku, izvo inoendeswa chiropa, uye yakakura akatarisa chirwatata.

Rusvingo muviri rine akaturikidzana mana, riya rokunze raakanga ari serosa. Three mamwe rukoko - zvemukati:

1. Tsandanyama.
2. Submucosal.
3. Slimy.

Nemhaka zvakaoma tsandanyama rukoko uye avete pariri submucosa, mucosa ane pazvirugu zhinji. The nzvimbo muviri uye fundus pazvirugu izvi skew, longitudinal uye transverse gwara, uye munzvimbo curvature duku - longitudinal chete. Nokuda kuti nemamiriro gastric mucosa pamusoro hwakadaro zvikurusa. It hwezvekukurukurirana kugayiwa kwezvokudya bolus.

mabasa

Chii mashandiro mudumbu? Vakawanda vavo. We zvinyore huru.

• Motor.
• Secretory.
• Kubvisa.
• Excretory.
• Unodzivirira.
• Kwemakemikari anobudiswa.

Mumwe nomumwe Mabasa aya nedanho kugaya kukonzera. Uyezve, mashandiro mudumbu kunyatsotarisisa. Zvinozivikanwa kuti zvomudumbu kwacho kunotanga pamuromo, pane zvokudya kuburikidza yegurokuro mudumbu.

motokari basa

Mudumbu, pane kumwe kugaya. Motor basa mudumbu ndiro kuunganidza zvokudya zvakawanda, ayo machine uye mberi kusimudzira pamusoro ura.

Panguva zvokudya uye pakutanga mumaminitsi pashure mudumbu iri ndagadzikana, iyo inosimudzira kuunganidza zvokudya mairi, uye inopa hurumende ichiisa secretion. Next kutanga contractile kufamba, izvo zvinopa tsandanyama rukoko. Saka pane vaiitawo zvokudya gobvu pamwe gastric muto.

Nokuti tsandanyama muviri dzinoratidzwa anotevera mhando kufamba:

• Peristaltic (Wavy).
• Systolic - kuitika munyika pylorus.
• Tonic - kubatsira rutapudzo mudumbu mhango saizi (Musana uye muviri).

Agamuchira zvokudya yokutanga peristaltic mafungu simba. Pakazopera wokutanga awa pashure zvokudya, izvo yakakura, izvo inosimudzira chikafu bolus kuti nzira yokubudisa mudumbu. The kumanikidzwa ari pyloric chikamu mudumbu inowedzerawo. Pyloric sphincter anovhura uye chikamu zvokudya gobvu anopinda duodenum 12. Ichingova chikamu chikuru ichi vakawanda unodzokera kuna pylorus. Kubvisa basa mudumbu haagoni kuparadzaniswa injini. Zvavanokupai nokugeda uye homogenization zvokudya zvakawanda uye nokudaro kuti pave nani Absorção de Água muviri ari dumbu.

Secretory basa. gastric mumasero

The secretory basa mudumbu iri mishonga kurapwa bolus yakabereka Via secretion. Per zuva mukuru unobudisa munhu marita rimwe nehafu gastric muto. Anosanganisira hydrochloric asidhi uye nhamba kuti makemikari: pepsin, lipase uye chymosin.

Zvayaiva munyika mucous shwanu pemvura. Ndivo mumasero exocrine kuti pave gastric muto. Gastric basa wakabatana chakavanzika ichi zvakananga. Omumuviri akakamurwa mhando dzakawanda:

• Cardiac. Zvinowanikwa iri Cardia pamukova muviri ichi. mumasero izvi pave mucoid slizeobrazny muchivande. It anoita unodzivirira nerevane rinoshandiswa kudzivirira dumbu, iye kuzvidzora kugaya.
• Major kana fundic shwanu. Iri nechepasi uye chitunha mudumbu. Ivo zvibereko gastric muto ine pepsin racho sezvamunoita. Nokuda muto zvinoberekwa kugaya zvokudya kunoitika guru.
• Intermediarnye shwanu. Iri nhete zvenguva mapazi pakati muviri dumbu uye wegedhi. mumasero izvi pave viscous mucoid secretion kuti alkaline uye anodzivirira dumbu kubva hasha gastric muto. In ayo akafanana, kusanganisira, rinosanganisira hydrochloric acid.
• Pyloric shwanu. Zvinowanikwa iri pyloric chikamu. Other, zvinoberekwa navo, unoitawo rwokudzivirira basa pamusoro acidic hwaiitwa gastric muto.

Secretory basa mudumbu inopiwa akasiyana-siyana vatatu masero: cardiac, fundic, kana mukuru, uye pyloric.

kubvisa basa

Ichi muviri basa, asi ane yechipiri basa, t. K. The chikuru Absorção de Água rikauya kubatwa zvinovaka muviri ari dumbu, sezvamakaropafadzwa chikafu gobvu angasvikira mamiriro umo muviri inogona nyore kushandiswa zvose zvakakodzera upenyu fuma ichibva zvokudya kubva kunze.

excretory basa

Zvinonzi kuti node uye ropa mhango mudumbu rusvingo kunouya dzimwe zvinhu, zvinoti:

• Amino acids.
• Mapurotini.
• Uric acid.
• Urea.
• Electrolytes.

Kana wevasungwa ava zvinhu muropa kunowedzera, uye kukurukura yavo mudumbu inowedzerwa.

Excretory basa mudumbu zvikuru panguva nokutsanya. Protein anowanikwa ropa hazvigoni kushandiswa mumasero omuviri. Ndivo chete akakwanisa kunzwisisa kuguma chigadzirwa mapuroteni kwokuputsika - amino acids. Kubuda ropa mudumbu, apo puroteni iri enzymatically kupatsanurwa mberi uye anotanga kupinda amino acids, ayo zvino kushandiswa ne nyama muviri uye zvinokosha zvomukati.

unodzivirira basa

basa iri kunosimbiswa nemashoko zvakavanzika, unobereka muviri. Ukabatwa utachiona vari vakaurayiwa yokuwana gastric muto, zvakawanda chaizvo, pamwe hydrochloric asidhi riri kwaro sezvamunoita.

Uyezve, dumbu rakagadzirwa kuitira kuti kana anopinda chenhando zvokudya, zviri anokwanisa nechokwadi ayo kudzoka uye kudzivirira ingress kuti zvinokuvadza ari ura. Saka, izvi zvichaita akanyevera chepfu.

kwemakemikari anobudiswa basa

basa iri rinoitwa nevanhu kwemakemikari anobudiswa masero ari mudumbu, ayo riri kwaro mucosal rukoko. Masero aya berekai anopfuura 10 mahormone vanogona waidzora basa mudumbu uye zvomudumbu maitiro uye yose muviri. mahormone Idzi dzinosanganisira:

• Gastrin - yakabereka dzakawanda mudumbu G-masero. It inodzora acidity pamusoro gastric muto, basa kwetunhu hydrochloric acid, uyewo sei motokari chaitika.
• Deli - kuchititadzisa kugadzirwa hydrochloric acid.
• Somatostatin - kuchititadzisa kubatana kwetunhu jekiseni uye glucagon.
• Bombesin - kemikari uyu synthesized nokuva dumbu uye proximal diki ura. Under nawo zvaanopa simba kusunungurwa gastrin. Rinotaurawo kunokanganisa rutapudzo pamusoro nduru dundira uye pancreatic enzayemu chaitika.
• Bulbogastron - kuchititadzisa ari secretory uye gwenya kushanda mudumbu.
• Duokrinin - zvinoita secretion 12-duodenum.
• Vasoactive intestinal peptide (VIP). kemikari Izvi synthesized munzvimbo dzose nemudumbu. It kuchititadzisa kubatana kwetunhu pepsin uye hydrochloric asidhi uye relaxes kumeso tsandanyama ari gallbladder.

Takawana kuti nedanho kugaya uye kupa muviri anokosha basa rinokosha iri kuridzwa ne mudumbu. Chimiro uye basa nayo runonziwo.

dzichipfekeka zvirwere

Zvirwere zvomudumbu turakiti, kazhinji kusonganirana pakanga pakaputsika chero zvayo mamiriro. Kutyora mashandiro anoita mudumbu apo ikoko kazhinji. pathologies kwakadaro kunogona kutaura chete kana murwere panguva kuongorora kwakaratidza pasina Organic maronda muviri.

Kutyorwa secretory kana gastric motility kunogona kuitika nemarwadzo uye dyspepsia. Asi kurapwa, kuchinja aya kazhinji reversible.