Lobe gaban

Lobe gaban

Lobe na gaba (daga lobos na Girka) ya ƙunshi ɗaya daga cikin yankuna na kwakwalwa da ke gaban cranium.

Anatomy na gaban lobe

Matsayi. Lobe na gaba yana cikin gaban kwakwalwa, a ƙarƙashin ƙashin gaba. An raba shi da sauran lobes ta hanyoyi daban-daban:

  • Sulcus na tsakiya, ko Rolando sulcus, yana raba lobe na gaba daga lobe na parietal;
  • Sulcus na gefe, ko Sylvian sulcus, yana raba lobe na gaba daga parietal da lobe na wucin gadi.

Babban tsari. Lobe na gaba yana ɗaya daga cikin yankuna na kwakwalwa. Na karshen shi ne bangaren da ya fi ci gaban kwakwalwa kuma ya mamaye mafi yawansa. Yana da nau'i-nau'i, wanda jikin tantanin halitta ya kasance a kan gefen kuma yana samar da kwayoyin launin toka. Ana kiran wannan waje na cortex. Ƙwayoyin waɗannan jikin, da ake kira zaruruwan jijiyoyi, suna cikin tsakiya kuma suna samar da fararen fata. Wannan saman na ciki ana kiransa yankin medullary (1) (2). Furrows masu yawa, ko tsagewa lokacin da suka yi zurfi, suna bambanta wurare daban-daban a cikin kwakwalwa. Tsayin tsayin daka na kwakwalwa yana ba da damar a raba shi gida biyu, hagu da dama. Wadannan hemispheres suna haɗuwa da juna ta hanyar commissures, babban ɗayan su shine corpus callosum. Sannan ana raba kowace hemisphere, ta hanyar sulcus na farko, zuwa lobes guda huɗu: lobe na gaba, lobe na parietal, lobe na ɗan lokaci da lobe na occipital (2) (3).

Tsarin sakandare da manyan makarantu. Lobe na gaba yana da tsagi na sakandare da na uku, wanda ke ba da damar yin juyin juya hali da ake kira gyri. Babban lobe gyri na gaba sune:

  • tsakiyar gyrus,
  • Gyrus na gaba mafi girma,
  • gyrus na gaba na tsakiya,
  • gyrus na gaba na baya.

Ayyuka na lobe na gaba

Kwakwalwar kwakwalwa yana da alaƙa da ayyukan tunani da na hankali, da kuma asali da kuma kula da ƙwayar ƙwanƙwasa. Ana rarraba waɗannan ayyuka daban-daban a cikin lobes daban-daban na kwakwalwa (1).

Lobe na gaba da gaske yana haɗa ayyukan mota, kuma musamman na son rai. Daya bambanta musamman filin mota na farko wanda yake a matakin gyrus precentral, da kuma yankin Broca, yankin da ke hade da magana. Har ila yau lobe na gaba yana da yankuna don canjin bayanai (2) (3).

Pathology hade da gaban lobe

Wasu cututtukan cututtuka na iya tasowa a cikin lobe na gaba kuma suna shafar tsarin kulawa na tsakiya. Dalilan sun bambanta kuma suna iya kasancewa na musamman na degenerative, jijiyoyin jini ko asalin ƙari, wasu cututtukan cututtuka

bugun jini Hatsarin jijiyoyin jini, ko bugun jini, yana faruwa ne lokacin da aka toshe magudanar jini, kamar samuwar gudan jini ko fashewar jirgin ruwa4. Wannan ilimin cututtuka na iya tasiri ayyuka na lobe na gaba.

Ciwon kai. Ya yi daidai da girgiza a matakin kwanyar wanda zai iya haifar da lalacewar kwakwalwa, musamman a matakin gaba. (5)

Multiple sclerosis. Wannan Pathology cuta ce ta autoimmune na tsarin juyayi na tsakiya. Tsarin garkuwar jiki yana kai hari ga myelin, kumfa da ke kewaye da zaruruwan jijiya, yana haifar da halayen kumburi. (6)

Ciwon kwakwalwa. Ciwace-ciwacen ciwace ko ciwace-ciwace na iya tasowa a cikin kwakwalwa, musamman a cikin lobe na gaba. (7)

Degenerative cerebral pathologies. Wasu cututtuka na iya haifar da canje-canje a cikin nama mai juyayi a cikin kwakwalwa.

Cutar Alzheimer. Yana haifar da canje -canje na ikon tunani tare da asarar ƙwaƙwalwar ajiya ko tunani. (8)

Cutar Parkinson. An bayyana ta musamman ta hanyar rawar jiki yayin hutawa, raguwa da raguwa cikin kewayon motsi. (9)

jiyya

Drug jiyya. Dangane da cututtukan da aka gano, ana iya ba da wasu magunguna kamar magungunan hana kumburi.

Thrombolyse. Anyi amfani dashi lokacin shanyewar jiki, wannan jiyya ya ƙunshi rushewar thrombi, ko ƙin jini, tare da taimakon magunguna. (4)

Magungunan tiyata. Dangane da nau'in cutar da aka gano, ana iya yin tiyata.

Chemotherapy, radiotherapy, far da aka yi niyya. Dangane da nau'i da mataki na ƙwayar cuta, ana iya aiwatar da waɗannan jiyya.

Gwajin lobe na gaba

Nazarin jiki. Na farko, ana yin gwajin asibiti don ganowa da tantance alamun da mai haƙuri ya gane.

Gwajin hoton likitanci. Domin tabbatarwa ko tabbatar da ganewar asali, ana iya yin na'ura mai kwakwalwa da na kashin baya CT scan ko MRI na kwakwalwa.

biopsy. Wannan jarrabawar ta ƙunshi samfurin sel.

Lumbar dam. Wannan jarrabawar tana ba da damar nazarin ruwan cerebrospinal.

Tarihi

Babban Likitan neurosurgeon Faransa Paul Broca a cikin 1861, yankin Broca ya ƙunshi yankin da ke da alaƙa da samar da harshe.

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