Sechivako tsinga - chidzidzo yakaitwa kwevanhu

Zvinonyatsorehwa Urongwa tsinga mamiriro kunorondedzerwa maviri yenhengo dzayo; nechepakati uye peripheral. Uropi uye musana uri nechepakati tsinga uye cranial, autonomic uye musana tsinga vari hwaro peripheral.

Man, kufanana nezvimwe zvinhu zvipenyu, akakwanisa kupindura makemikari mumuviri kuchinja zvakatipoteredza.

Pane zvinhu (kubata, ruzha, chiedza, uye kunhuwidza), izvo achibatsirwa kutsinga dzinouya mumasero anokosha vari dzikwanise tsinga nomunhu. Avo, akavapindurawo, nhevedzano zvemagetsi uye namakemikari kuchinja zvakananga kupinda etsinga faibha. The zvichiguma pulses vari pachishandiswa afferent fibers muuropi uye musana, apo avaindipa mirayiro zvakakodzera nokupfuuridzirwa efferent (injini) fibers kuti tsandanyama mutoro Executive ushande.

Marongerwo uye kushanda tsinga chinangwa kusangana pamwe zvokunze simba mano ane muviri kujairana nawo.

Sechivako tsinga haagoni kunzi zvachose pasina hunhu waro STRUCTURAL chikwata - the dzouropi chinhu tsinga Sero kuti inoumbwa muviri musimboti, dendritic (mapazi pezvakaitwa) uye axon (refu ruoko imwe). Nheyo nokushanda dzouropi - the dendrites ose etsinga nomunhu zvakaitika muchitokisi muviri, ipapo kuburikidza axon rwunotumirwa effectors kana mamwe masero.

Pakati pachavo kuburikidza dzinotsanagura Tutsinga tunofambisa mashoko utwu chokuita Via imwe synapse, ane basa kunoratidzwa inonzwika apo tsinga nomunhu. It anokwanisa kupfuura pulses mumwe uye imwe kunonoka.

Tutsinga tunofambisa mashoko utwu anogona kuva akasiyana, izvo kuona chaizvo basa ravo. Saka, rimwe boka Tutsinga tunofambisa mashoko utwu anoshanda Analytical nerevane vane basa kurwadziswa tsinga zvatinganzwa. Boka rechipiri iri anokonzera kwetunhu uye kuziva zvinodiwa vanobva dzimwe pfungwa. Pane boka rechitatu, inoita zvinokonzerwa kubva yapfuura izvi uye rinofananidza zvinokonzerwa kunobva aivapo mudungwe munzira.

kunzwisisa zvakarukwa kutarisirwa centre tsinga richiparadzirwa munyika Muviri ndiwo musana, chine chimiro refu chena "tambo", mumwe pakukora munwe, kureba masendimita 45 uye achirema magiramu anenge 30, uye riri mune musana mugero. Inoitwa zviviri zvinoti - vachena nyaya (sumbu masero etsinga) uye nyaya chena (tsinga faibha).

Akabva rworudyi musana bazi mu "muchimiro manyoro kubva mumuti hunde" musana tsinga. Vari akatumira siyana nhengo dzemuviri, uye kupa hukama epfungwa. Kudzora "mugove" vamwe muviri rinoitwa munyika yakadaro imwe tsinga.

Spinal tsinga ine chinjika kana Switch, uye mberi, kana injini, zvisote. The mhando fibers wokutanga anobva kubva receptors ganda, nemarunda, tsandanyama, majoini, nhengo dzomukati uye nepfungwa. Zviri receptors kuonekwa etsinga anonongedzera, ane mashoko pamusoro zvakaitika mumuviri uye kunze. Rear-internet Data anonongedzera inotumirwa musana, uye ipapo - muuropi, apo vari arongwe, kupatsanurwa, dzinoongororwa uye pamberi fibers vanotumirwa pakupindura dzimwe anonongedzera kuti tsandanyama, nhengo dzomukati nemidziyo ropa.

The mamiriro zvingasanganisira tsinga uye autonomic tsinga, riri basa muviri uye nhengo dzomukati. A chiri ino ndiyo rakazvimirira inoshanda uye saizvozvo kuzviisa pasi ari nechepakati tsinga.

Maererano simba rayo pamusoro zvomukati ari autonomic tsinga kuchibva parasympathetic uye tsitsi nehurongwa. Ukama hwavo vari nani kuoma, nokuti kazhinji vane vanetsane imwe chete muviri, uye kuburikidza iyo kubudirira mumwe zvakanakanaka mumuviri.

Sechivako tsinga kusanganisira cerebral cortex, iro rine Ukobvu vanenge 3 mm uye zvachose munzvimbo dzinenge kota sq.m. Chikamu ichi muviri une matanhatu akaturikidzana, izvo zvine chokuita masero mumwe nomumwe. Uwandu masero aya anenge 15 Bln. Pieces.

Sechivako tsinga It ichakurukurwa zvachose pasina mananara akadai dzepanguva, inova muviri apindura nechinzwano kwokunze simba nomukombiyuta nechepakati tsinga. Rakakamurwa zvimiso hunenge (muviri anogona kuchinja kuchinja zvezvakatipoteredza ezvinhu) uye isiyo (chokuziva mhinduro zviwane). Unconditional hunenge regai zvinoda zvimwe zvinhu nokuda kwayo kugadzirwa, uye zvimiso - simuka nokuda mananara siyana zvinokosha kuti vanhu.