Synapses korontada iyo qaababka ay

Synapses waxaa ku takhasusay xiriirada functional, oo waxaa lagu abaabulaa dhexeeya unugyada excitable. Waxay gudbiyaan iyo beddesho ah calaamadaha kala duwan. Synapses muuqan qaab thickenings at darafyadiisa macdantaa dareemayaasha. Iyada oo ay caawimo falalkooda dareemayaasha dacaayad in unugyada deriskiisa. Shaqada ugu weyn ee synapse waa gudbinta ah intercellular ah falalkooda dareemayaasha.

Qoondaynta iyo sharaxaad kooban

Sida laga soo xigtay nooca la karsado jira qaso, kiimikada iyo synapses korontada. Chemical ayaaba la isugu gudbiyo signal in hal jiho oo waxaa rizqiga, iyo sidoo kale depolarize hyperpolarizes postsynaptic ama ka howgala. Iyada oo taageero ka synapses kiimikada kordhiyaa plasticity ee digayaan, in uu yahay, qof hagaajiyo xusuusta iyo xawaaraha waxbarasho. The dib u dhac synaptic offline gudbinta korontada, iyo signal la fuliyay laba jiho. gudbinta garaaca wadnaha ka madax bannaan saameynta xuub presynaptic. Intaa waxaa dheer, synapses korontada yihiin adkaysi u kul hoose, iyo sidoo kale qaar ka mid ah saamaynta farmashiyaha laga. synapses nooca isku dhafan ay leeyihiin mid ka mid feature. Iyagu waa isku midka ah u kiimikada iyo seylaanyenta korontada.

Waa maxay synapse koronto?

synapses korontada - waa formation intercellular kaas oo ay hubisaa in gudbinta garaaca wadnaha excitation ah. Marxaladani waxay dhacdaa sabab u muuqaalka kore ee koronto u dhexeeya labada waaxda loo yaqaan presynaptic iyo postsynaptic. habka dareemayaasha jirka ah ee xawayaanka ayaa tiro badan oo ah synapses korontada, halka nuujiya waxay Jinnigu u dhawaadeen inay jiraan. Marka la isku synapses korontada waa kuwo ka mid ah xayawaanka sare ee caadiga ah. Guud ahaan, ay yihiin ee wadnaha, beerka, murqaha, iyo sidoo kale in ay epithelium iyo unugyada u jilacsan. dillaacii synaptic in synapses korontada waa badan uga yar yahay kiimikada. Muqaalka muhiimka ah ee noocan ah ee synapse waa xaqiiqda ah in inta u dhaxaysa xuubka horudhaca ah iyo postsynaptic jira buundo ee u taagoo protein.

synapses korontada nooca shaqada Muhiim ah

Guryaha ee synapses korontada waa sida soo socota:

• tallaabo degdeg ah (inta badan hawl ka xoogbadan, ee synapses nooca kiimikada);
• saamaynta darnaaday raad (summation of digir isku xigta ficil lahayn);
• gudbinta lagu kalsoonaan karo oo excitation;
• ductility sare;
• wareejiyo hal iyo labada dhinac.

Features of qaab-dhismeedka

Dhismaha maayad koronto ku bilaabmaa xuub postsynaptic. Next waa dillaacii synaptic cidhiidhi ah, oo ka kooban tubules transverse kooban u taagoo protein. Behind dillaac ku yaal xuub presynaptic. In dhexe waa huurada synaptic semicircular. dhammaaneysa synaptic Norden - element kama dambaysta ah ee qaab-dhismeedka synapse korontada. Sababo la xiriira joogitaanka protein taagoo channels dhexeeya unugyada horudhaca ah iyo postsynaptic, udhigo imanba iyo taagoo yar ay awoodaan in ay ka mid gacanta u guurto kale. synapse noocan oo kale ah uu leeyahay iska caabin aad u yar yahay korontada. Under xaaladahan, hadda ka codsatay in ay unugyada postsynaptic presynaptic iyo ku dhawaad ka demo.

guryaha functional gaar ah

In synapses korontada, waxaa jira tiro ka mid ah muuqaalada functional gaar ah. dib u dhac synaptic ku dhow ma jiro. Suu soo gala terminal ka presynaptic, ka dibna habka bilaabo iman kara isla markiiba postsynaptic. bareeg u dhexeeya falalkan ku maqan yahay. synapses korontada bixiyaan habka gudbinta kaliya - ee excitation. In noocan ah synapse waxaa haysta laba geesoodka ah, inkastoo xaqiiqda ah in ay sabab u tahay sifooyinka qaban stereometric in hal jiho ugu hufan. waxyaabo kala duwan (pharmacological, kaamerada, iwm) waxay leeyihiin shiidaa saameyn ah kuma laha ee synapses nooca korontada.

Sidee waa faraxsan in synapses korontada? tallaabooyinka geedi socodka

beerta Samaynta (XPIEIV) - shaqada ugu weyn oo qaadataa synapse korontada. farsamo ee habkan ay la mid tahay PDP ee synapses in fiiloyin dareemayaasha. Marka excitation ku badalato si ay u qabtaan tallaabada horumarka, dib u noqoshada ah oo mas'uul bilaabmin xuub presynaptic. Sidaas darteed, koronto, taas oo saameyn ku xuub postsynaptic, waxaa diiqayaa iyo waxa sababa in ay curiyaan XPIEIV. Tabinta of excitation in synapse korontada waa geedi socod adag jir dhacda in dhowr marxaladood. xuub presynaptic qabata Isbadal ee wadnaha korontada si kiimikada, kaas oo la qaadan on saxan postsynaptic mar kale barbaro galay signal koronto.

Qaar ka mid ah cilladaha ee synapses korontada

In kasta oo xaqiiqda ah in synapses korontada loo fuliyo geedi socodka si caddaalad ah oo fudud ee kala iibsiga excitation, waxay leeyihiin qaar ka mid ah ayna duleella u weyn. Iyo in la eedeeyo hafray ee ay falsayeen. suuragalnimada in si toos ah kala iibsiga si fog farax unugyada halkaas. unugyada Pre- iyo postsynaptic ku xiran yihiin nooca synapses korontada, waxay had iyo jeer ku jira excitation isku. codkeeda ka muuqday wax aan macquul aheyn. Sidaas darteed oo dhan dhiman kor ku xusan ee maskaxda ilmaha ma aha badan oo synapses korontada, halka dadka waaweyn waa kuwo yar ee xuubka ileyska xasaasiga ku isha, stem maskaxda iyo xididdada of qalab ah vestibular.

la mid ah A, laakiin qaab farsamo bahal ee excitation waa natiijo ka mid ah cudurada kuwaas oo la xidhiidha xumaanshaha of xuduudaha axon ah. Sidaas awgeed, habka excitation ah "bootin" oo ka mid ah in axon kale, taas oo keeni karta in dareen been ah. Tusaale ahaan, muuqaalka kore ee dareenka xanuunka, inkastoo fal l'ee receptors xanuun durugsan laga yaabaa inuu dhaco sababta oo ah "Humle" excitation.