Striatum da ayyuka

The mutum kwakwalwa - wani hadadden a cikin tsarin jiki, wanda ya ƙunshi wani sa na jijiya Kwayoyin da su tafiyar matakai. Don daya daga cikin tsarin sassa na kwakwalwa hada da striatum.

definition

Striate jiki na kwakwalwa ne daga ilimin Halittar Jiki tsarin na telencephalon, wadda ke da alaka da wani muhimmi nuclei hemispheres mutum kwakwalwa.

Sunan na jiki ne don haka ya kira domin shi yana da nau'i na m makada na fari da launin toka al'amari na frontal kuma a kwance sassan na kwakwalwa.

A farkon nazarin ya nuna cewa ganiya striatal aiki zo a lokacin da wani mutum ya jũya shekaru 15 da haihuwa. Amma kwanan nan nazarin ya nuna cewa real aiki na jiki zai fara kusa da shekaru 25, da kuma Hyperactivity lissafta ga shekaru 30.

Bugu da kari, jawabin da ban sha'awa sosai binciken, masu bincike gano cewa, cikin kwakwalwa amsa ga lokacin Hakkin ba su rufe da kokarin mutane sa yin aiki. Alal misali, idan ma'aikaci gane cewa da takwaransa samun karin ga wannan adadin aiki, da dalili don dogon tawaya rage. A daya hannun, da marmarin aikin qara revaluation aiki.

tsarin

Striatum kunshi:

• Caudate tsakiya.
• Lenticular tsakiya.
• Fences.

Idan muka yi la'akari da jiki a karkashin wani microscope, shi kunshi manyan neurons tare da dogon wutsiyoyi mikawa bayan da iyakoki da striopallidarnoy tsarin.

Sassa na jiki na caudate - a kai da jiki da kuma wutsiya. The shugaban Forms gefen bangon daga cikin agara Kakakin na a kaikaice ventricle. core jiki ne ja tare da tsakiyar rabo daga ventricle. wutsiya ne a kan saman bango na ƙananan zankayen ventricle kuma ƙare a kaikaice geniculate jiki.

The raya bango na shugaban core aka located a iyaka da thalamus, ya raba su hada farin m.

Lenticular tsakiya, kamar yadda sunan ya nuna, da siffar reminiscent na lentils.

An located zuwa ga gefen cikin caudate tsakiya da kuma thalamus. Idan muka yanke da zuciyar a cikin rabin, shi yana da sandan siffar, saman wanda aka juya zuwa cikin tsakiyar, da kuma kasa - a gefe.

A kananan Layer na fari al'amari ne zuwa kashi da dama core aka gyara:

1. Shell.
2. Kaikaice globus pallidus.
3. Tsakiya globus pallidus.

Pallidus - wani nau'in na zamanin d ilimi (tsohon jikinsa) cewa shi ne daban-daban daga wasu sassa na striatum biyu macroscopic da histological hankali.

A shinge da aka located waje da ruwan tabarau-dimbin yawa tsakiya. Azahiri, shi ne lafiya, har zuwa biyu millimeters, farantin na launin toka al'amarin. A tsakiyar lebur farantin, kuma yana da kananan kumbura na launin toka al'amari a gefe gefe.

asali ayyuka

Striatum na kwakwalwa da jikin da aka dauke su daya daga cikin manyan subcortical tsara da kuma hadakan cibiyoyin na propulsion tsarin.

Ta hanyar gwaje-gwajen da ya tabbatar da cewa jiki qunshi wani vegetative bunkasa cibiyoyin da cewa gwada zafi tsara, zafi saki, metabolism kuma dauki tasoshin.

Babban ayyuka na striatum aiki sun hada da:

• Regulation tsoka sautin.
• A karu a tsoka sautin.
• Da hannu a cikin tsari na kayan ciki.
• Saka hannu cikin halin martani.
• Saka hannu cikin samuwar sharadi reflexes.

Lalacewar da striatum da kuma sakamakon

Lokacin da taguwar jiki daina aiki, da wadannan take hakki ne kiyaye a cikin mutane:

• Athetosis. Sananne alternating reshe ƙungiyoyi.
• Chorea. Ba daidai ba ƙungiyoyi cewa faruwa ba tare da wani jerin ko domin na kamawa da dukan jiki musculature.
• Karawa unconditioned reflexes (tsaron gida nuni da dai sauransu).
• Hyperkinesia. Muhimmanci kayan haɓɓaka aiki na karin ƙungiyoyi da bi kowane primary motsi.
• Hypotonia. Unnerving tsoka sautin, rage shi.
• Ana zargin Tourette ta ciwo.
• A bayyanar Parkinson ta cutar na taimaka wa mutuwa na neurons a cikin jiki, saboda abin da aka ba samar domafin, wanda shi ne ke da alhakin propulsion tsarin na jikin mutum.
• A bayyanar Huntington ta cutar.

Bayan lalacewar da striatum da kuma tsakiya caudal musamman:

• Cikakken ko partially hana ji zafi, na gani, auditory, da kuma sauran iri ruri.
• Rage ko qara salivation.
• Hana fuskantarwa a sarari.
• Warware memory.
• Yana slows saukar da girma.
• Yana taimaka wa bacewar sharadi reflexes a cikin dogon lokaci. Human hali iya zama inert kuma m.