Mawallafi: Clyde Lopez
Ranar Halitta: 21 Yuli 2021
Sabuntawa: 15 Nuwamba 2024
Anonim
Self-massage of the face and neck. Facial massage at home Facial massage for wrinkles Detailed video
Video: Self-massage of the face and neck. Facial massage at home Facial massage for wrinkles Detailed video

Wadatacce

Kunna bidiyon lafiya: //medlineplus.gov/ency/videos/mov/200011_eng.mp4 Menene wannan? Yi bidiyon bidiyo na lafiya tare da bayanin sauti: //medlineplus.gov/ency/videos/mov/200011_eng_ad.mp4

Bayani

Tsarin juyayi ya kasu kashi biyu. Kowane bangare yana dauke da biliyoyin jijiyoyi. Kashi na farko shine tsarin juyayi na tsakiya. Ya ƙunshi kwakwalwa da ƙashin baya, wanda shine fibrous, tsarin ropelike wanda yake ratsawa ta cikin layin baya ta tsakiyar tsakiyar baya.

Sauran bangaren shine tsarin juyayi na gefe. Ya ƙunshi dubban jijiyoyi waɗanda ke haɗa layin kashin baya zuwa tsokoki da masu karɓar azanci. Tsarin juyayi na gefe yana da alhakin abubuwan tunani, wanda ke taimaka wa jiki guje wa mummunan rauni. Hakanan yana da alhakin yaƙin ko amsar jirgin da ke taimaka maka kariya lokacin da ka ji damuwa ko haɗari.

Bari mu bincika mutum neuron a kusa.

Anan ga jijiya na gefe. Kowane ɗayan jijiyoyin jijiyoyin, ko fascicles, ya ƙunshi ɗaruruwan jijiyar mutum.

Ga wani mutum neuron, tare da dendrites, axon, da cell cell. Dendrites suna kama da itace. Aikin su shine karɓar sigina daga wasu ƙananan ƙwayoyin cuta da kuma daga ƙwayoyin halitta masu mahimmanci waɗanda ke gaya mana game da abubuwan da muke ciki.


Jikin tantanin halitta shine hedikwatar ƙirar. Yana dauke da kwayar halittar DNA. Axon yana watsa sigina daga jikin kwayar halitta zuwa wasu jijiyoyin. Yawancin igiyoyi suna cikin rufi kamar yanki na wayar lantarki. Rufin yana kare su kuma yana ba da damar alamun su suyi sauri tare da axon. In ba tare da shi ba, sigina daga kwakwalwa ba za su taba kaiwa ga kungiyoyin tsoka a gabobin jiki ba.

Motocin motsa jiki suna da alhakin kula da son rai na tsokoki a jikin duka. Aikin tsarin juyayi ya dogara da yadda ƙwayoyin cuta ke sadarwa. Don siginar lantarki tayi tafiya tsakanin jijiyoyi biyu, dole ne a fara canza ta zuwa siginar sinadarai. Sannan yana ratsa sarari kimanin mil miliyan na inci mai faɗi. Ana kiran sararin samaniya synapse. Alamar sinadarai ita ake kira neurotransmitter.

Neurotransmitters suna ba da damar biliyoyin ƙwayoyin cuta a cikin tsarin juyayi don sadarwa da juna. Wannan shine ya sanya tsarin mai juyayi ya zama masanin sadarwa na jiki.

  • Cututtuka na Jijiyoyi
  • Cututtukan Neuromuscular
  • Cutar Nerve

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