A tsari dabam dabam - wani injiniya fitacciyar

Za ka iya tunanin gidan da ake mafi rikitarwa piping tsarin cike da sosai m ruwa smoothly shari ruwa, abinci, oxygen da kuma kawar da sharar gida? Bugu da kari, da bututu da kansu su ne iya kansu warke, kuma girma, adapting to canje-canje a cikin gidan. Wannan aikin injiniya tsarin zai sa sha'awa na kowa da kowa.

Amma mu jijiyoyi da yake iya more. Yana shirya jiki zafin jiki, da motsa da babbar dama daban-daban hormones da cewa kawo muhimmanci bayanai zuwa duk Kwayoyin, tsara kariya da pathogens. Wannan cibiyar sadarwa ne gaba daya m da kuma taushi, don haka shi ne iya sha duk tunkaro kuma lankwasa tare da jiki. Bari mu dubi wannan fitacciyar up kusa.

A tsarin da mutum jijiyoyi

A tsakiyar da jijiyoyi ne a m jiki - da zuciya, wanda shi ne kamar famfo ci gaba da farashinsa jini a cikin rufaffiyar madauki, kunsha na tasoshin.

A dukan tsarin ne zuwa kashi biyu aka gyara:

• huhu wurare dabam dabam. jijiyoyin bugun gini tsarin haxe tare da zuciya da kuma huhu. Fara cikin da'irar a dama ventricle, karshen shi ya ta'allaka ne a hagu atrium. Yana shafi kawai ga huhu.

• A manyan da'irar jini wurare dabam dabam. Yana fãra a lakã kuma ƙare a dama atrium.

Manyan wurare dabam dabam a gare ta tasoshin kamar yadda ƙi sun mamaye dukan jiki.

Zuciya tare da taimakon tsaye ganuwar da aka kasu kashi biyu. Kowace daga cikin wadannan sassa kuma zuwa kashi biyu halves ta wajen kwance partitions, forming da ventricle da atrium.

Jini na farko ya shiga cikin babban jirgin ruwa na jiki - da lakã. Bugu da ari lakã ne zuwa kashi karami kayayyakinsa, da jini shiga cikin jijiya daga cikin tsari dabam dabam. A hankali arteries reshe kashe da kuma wuce zuwa cikin arterioles da capillaries. A diamita na capillaries ne sosai low - kamar 10 microns. Wannan yana nufin cewa ja da maikacin jini, daukawa oxygen zuwa Kwayoyin ratsa cikin capillaries a lokaci guda. Ganuwar da capillary tasoshin ne bakin ciki sosai - kunshi kawai guda Layer na sel, amma shi ba ya hana samar da gina jiki ga kyallen takarda located a cikin ruwa rabo daga jini (jini). Lokaci guda na nama a cikin capillaries daukar kwayar cutar carbon dioxide da kuma na rayuwa kayayyakin da bukatar kau daga jiki.

A capillaries da kadan loopy tsoka, ta hanyar da za su iya sarrafa kwarara daga jini wucewa ta wurin su, to saduwa da bukatun da suke kewaye da kyallen takarda. Lokacin da jini ya fita daga capillaries, shi shiga cikin microscopic jijiyoyinmu - venules. Venules kara coalesce cikin jijiyoyinmu, jini a kan su ci gaba da daga ƙarƙashinsu ga tsari wurare dabam dabam, ya dawo zuwa zuciya. A cikin jijiyoyinmu daga jini ne m fiye da a cikin jijiyoyi, amma lumens na jijiyoyinmu more.

Yaya kishiyar motsi an tabbatar?

Godiya ga wani m karbuwa:

• A kofin-dimbin yawa bawuloli cewa hana jini malalo daga zuciya a ƙarƙashin rinjayar nauyi.

• A aikin da kwarangwal tsokoki, wanda damfara da hankali spaced jijiyoyinmu, turawa jini ta cikin daya-hanyar bawuloli a cikin shugabanci na zuciya.

• Ciki matsa lamba a cikin kirji da ciki a lokacin numfashi da kuma dabam taimaka jijiyoyinmu Pump jini a cikin dama atrium.

Lokacin da venous bawuloli ga abin da dalilai (ciki, hereditary kayyade predisposition, kiba ko dogon nesa) ba ya aiki sosai, da tara jini da kuma jijiyoyinmu kumbura karkashin bawuloli. Wannan yanayin da aka sani a matsayin varicose veins.

A tsari zagayawa kai oxygen da kuma kwakwalwa Kwayoyin. Saboda haka, cikin kwakwalwa jini wurare dabam dabam da aka za'ayi da wannan dokokin kamar yadda duk sauran gabobin. Idan venous outflow daga kwakwalwa tasoshin ne wuya, to, akwai dizziness da kuma ciwon kai.

Abin mamaki, da yadda ya dace da mutum Sistem sakulasan ne sistem haka high cewa ko da a sauran minti daya ne, game da 5 lita na jini ya wuce ta zuciya da kuma a gudun fanfalaki na game da 35 lita kowane minti daya.

Kamar yadda ka gani Mahaliccin mu gaske mai girma zanen, alhãli kuwa al'amarinsa ne hannunka - na tsari dabam dabam - shi ne m!