The mutum kwakwalwa

The mutum kwakwalwa tare da spins na ta tsakiya m tsarin. Jariri da nauyi ba ya wuce 330, ko 340 grams. A mataki na amfrayo da kuma na farko da 'yan shekaru na yara, da mutum kwakwalwa tasowa maida. Domin shekaru 20 da girma da aka kammala. An fara tasawa namiji kwakwalwa nauyi ya 1375 g, da kuma wata mace - 1275 Kadan nauyi jiki a cikin mafi kyau jima'i ne saboda su overall karami. A taro rage-rage tare da shekaru, ba kawai na dukkan gabobin, rasa nauyi da kuma kwakwalwa.

Anatomy of shi, da kuma aiki da aka yi karatu ilimin tsarin jijiyoyi - horo na gefe m tsarin da kuma tsakiyar.

Yana bautarka shugaban da mutum kwakwalwa girman kogo. Ya kunshi da cerebral hemispheres da cerebellum da ganga.

Ware a cikin kwakwalwa na biyar ƙungiyoyin: wani guntun kwakwalwa, na tsakiya, na baya, tsaka-tsaki da kuma dogon. Je zuwa šauki yana da wani kai tsaye hali a kan laka. Ci gaba da wuyansa rabo ne medulla. Its siffar kama wani elongated kwan fitila. Kuma da sama na medulla oblongata wuce a baya, wanda ya hada da cerebellum da gada. Ya launin toka al'amari suranta mutum tsibiran - girman kwanyar jijiya nuclei - ginshiƙai da ba m kamar yadda a cikin laka. Shi ma yana da wani raga samuwar saboda tsari, interconnected na tsarin jijiya Kwayoyin. A gada ne kamar nadi hada da jijiya zaruruwa. A na baya na shi rufe da launin toka al'amarin a cikin wani nau'i na nuclei na girman kwanyar jijiyoyi. By karshen shi Narrows kuma ƙare a tsakiyar cerebellum, wanda, kasancewa a pons da medulla oblongata, rufe su kusan gaba daya. Daga sama an rufe tare da m al'amarin da GROOVES ne zuwa kashi segments.

Midbrain fadin Isthmus da alaka da raya. Yana hada kafafu da kuma quadrigeminal jikinsu. Wannan sunan farantin daga cikin rufi ya samu domin rarrabawa a cikin biyu tudun saman, hade tare da hangen nesa, da kuma kasa guda biyu hade da mai ji. A gicciye sashe na midbrain ne tushe na kwakwalwa kafafu hula da kuma rufin. Tsakanin kafafu da kuma rufin ta'allaka cerebral wandararre. A taya yana dauke da reticular samuwar da biyu manyan ja tsakiya.

A karkashin ayyukan marubuta callosum ne da midbrain, wanda shi ne a kan bangarorin da fis din tare da cerebral hemispheres. Yana yana hudu tudun: na gani, zabugornom yanki nadbugornuyu da podbugornuyu. Rami diencephalon - da uku ventricle.

Human cerebral bawo bayyana a matsayin m al'amarin rufe da yammancin duniya da kuma ciwon kauri of 5 mm. Samar da ta jijiya zaruruwa da sel (neurons), wanda kwanta a yadudduka a cikin wani tsari. A haushi shi ne gauraye. Kowane sashi na da tsarin shi ne daban-daban zaruruwa da Kwayoyin. Wannan shi ne saboda da ayyuka da cewa shi aikin. A gaskiya kowane bangare na kwakwalwa dabam na'am da hatsaisai daga kai surface na dukan jiki daga kyallen takarda da kuma gabobin. Alal misali, hanyar auditory sakonni ƙarasa a cikin boko lobe, na gani - kuma a cikin occipital bawo da dai sauransu Departments a nuna aika hatsaisai ta zuwa ga wasu shafukan a cikin kwakwalwa kara ...

Bugu da ƙari, mutum kwakwalwa, kazalika da dorsal, an rufe ta uku bawo: da jijiyoyin bugun gini (m), arachnoid kuma m. A periosteum na kwanyar ƙasũsuwa - wannan shi ne da wuya harsashi. A surface na kwakwalwa ne na bakin ciki, ba dauke da jini arachnoid. A kwakwalwa akasin haka, da tasoshin da kuma daukar wani mai taushi, kyale shi ya cika a duk furrows da kuma kwakwalwa tsaguwa. Ba tare da ba shi yiwuwa da samuwar da jijiyoyin bugun gini plexus na ventricles.

Tun da laka da kuma kwakwalwa suna juna, gazawar da daya daga cikinsu dole take kaiwa zuwa wani take hakkin reflexes, wanda shi ne alhakin da sauran. kwakwalwa lalacewar har ma da kara gajiya, ci na ayyuka za su iya kai wa ga tsanani cututtuka na tsakiya m tsarin da mutum.