Amazing na'urar - da mutum numfashi tsarin

Ba tare da abinci mai mutum zai iya rayuwa ga dama makonni ba tare da ruwa - kawai 'yan kwanaki da kuma ba tare da iska bayan 4 minti zo da lalacewar kwakwalwa Kwayoyin kuma baya mutuwa. A numfashi tsarin na jiki - wannan shi ne mai ban mamaki na'urar.

Ta yaya mutum numfashi tsarin?

A numfashi fili ya hada da juna wurare da ducts. Wanne hanyar iska gudana kafin ya kai gare shi da huhu? A mafi tsawo tafiya fara a lõkacin da iska ta bakin ko hanci samun shiga cikin makogwaro. Kamar yadda aka sani, a cikin makogwaro numfashi da kuma narkewa kamar hanyoyi rarraba. Don abinci ko ruwa yayin da hadiya ba samu shiga cikin numfashi fili, akwai kananan cover, da aka sani da epiglottis rufe ƙofar su.

Ta hanyar da makogwaro da da vocal igiyoyinsu iska rushes cikin trachea ko maƙogwaro (ta tsawon shi ne 12 cm). Fiye da dukan tsawon trachea ƙarfafa kamar ashirin kofaton-dimbin yawa cartilages. A ƙarshen trachea ne zuwa kashi biyu shambura na 2.5 cm - babban bronchi. Sun zo a cikin dama da hagu huhu, inda da yawa reshe bronchi.

bronchi sashe yayi kama da tsarin da itacen da yake da wani akwati, rassan da kuma bakin ciki twigs da kuma rassan. Kowane sabon reshe ya zama sirara. The iska ne directed cikin kananan twigs - kananan diamita tasoshin zuwa 1 mm, kira bronchioles.

Sa'an nan iska cika 300,000 har yanzu karami tashoshi - alveolar sacs. Suna located a gungu a cikin huhu da kuma kama kankanin kumfa. Akwai ƙare arborea numfashi tsarin, da kuma iska ya kai tashar karshe.

A tsarin da huhu - da babba sashin jiki na numfashi tsarin

Yana da daraja ambata, kamar yadda wani manufa wuri a cikin jiki haske - a garesu daga cikin zuciya. The hakkin huhu qunshi uku lobes da hagu - biyu. Taimaka Surgeons irin haltta: miciwa ne quite da aiki ko da bayan share idan wasu rashin lafiya lobe daga cikin huhu.

Huhu nama yayi kama da tsarin wani soso. Its ƙananan ɓangare na haske m ga diaphragm. Wannan sturdy, murdede bangare raba kirji rami daga kogon ciki. A diaphragm kira mafi muhimmanci tsoka na numfasawa, shi ne shiga a cikin m fadada da kuma ƙanƙancewa na huhu.

Kowane huhu da aka rufe da wani bakin ciki harsashi - pleura. A ciki gefen daga cikin kirji da aka ma an rufe shi da irin wannan membrane. Tsakanin yadudduka ne mai lubricating ruwa. Saboda wannan tsarin, da kuma huhu, da kuma kirji da yardar kaina slide a lokacin numfasawa.

A karshe dokin inspiratory iska

Lokacin da iska ya kai Alveoli, shi lambobi da cibiyar sadarwa thinnest jini - da na huhu capillaries. Erythrocytes (ja jini Kwayoyin) iya wuce ta cikin capillaries daya ne kawai, don haka kunkuntar diameters. Ta hanyar da thinnest bango (0.5 mm) carbon dioxide wuce a cikin alveolus. Oxygen ya fita daga Alveoli, ana tunawa da ja jini Kwayoyin.

Kawai uku-bariki na biyu ja jini cell ya zauna a cikin capillaries. A wannan gajeren lokaci da carbon dioxide da oxygen sun lokaci swapped. Wannan ban mamaki aiwatar da gas musayar aka kira yadawa. Jini wadãtar da oxygen shiga cikin huhu jijiyoyinmu , kuma ya kai gefen hagu na zuciya, da kuma daga can ne pumped a ko'ina cikin jiki.

Tunanin dukan jinin zai kawai bukatar minti daya zuwa aka cikakken wuce duk wannan hadaddun numfashi gudun ba da sanda!

Numfashi - atomatik tsarin

Healthy huhu ta atomatik kamar 14 sau da minti sha iska a lokacin numfashi. Ko da yake wannan aiki zai iya zama da gangan tsayar, rike da ya numfashi, amma yana yiwuwa su yi kawai kamar wata minti. Alal misali, shi wajibi ne, a lokacin da ruwa ko gurbata da dakuna, amma bayan da cewa lokaci, bisa ga haske a kan m shirin zai babu makawa sake shiga cikin atomatik yanayin. Ina da iko tsakiyar "atomatik"? A takamaiman rabe brainstem ci gaba da abun ciki na carbon dioxide a cikin jini. Lokacin da matakin wuce canja mark, kwakwalwa aika sakonni ta hanyar sadarwa ta jijiyoyi da numfashi tsokoki za a tilasta da za a kunna ta cikin jiki.

Abin da wata mu'ujiza - miciwa, ya gabatar mana da Mahalicci!