Orqa miya anatomiyasi


Funiculus lateralis Yonbosh kanatikda ikki tomonga yo’nalgan tolalar o’tadi


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@med ppt Orqa miya anatomiyasi

Funiculus lateralis

Yonbosh kanatikda ikki tomonga yo’nalgan tolalar o’tadi:

1. Yuqoriga chiquvchi:

  • Miyachaga- tractus spinocerebellaris anterior et posterior (7,10)
  • O’rta miyaga- tractus spinotectalis
  • Oraliq miyaga- tractus spinothalamicus lateralis et anterior (ventralis) (8)
  • 2. Pastga tushuvchi:

  • Katta yarimsharlar po’stlog’idan-tractus corticospinalis (11)
  • Qizil yadrodan-trctus rubrospinalis (9)
  • Olivar yadrodan-tractus olivospinalis (5)

  • Xulosa qilib aytganda, orqa miya oq moddasini tashkil qiluvchi kanatiklarda nerv tolalari quyidagi tartibda harakatlanar ekan:
  • Orqa kanatik(tizimcha)(funiculus posterior)- yuqoriga chiquvchi
  • Oldingi kanatik(tizimcha)(funiculus anterior)- pastga tushuvchi
  • Yonbosh kanatik(tizimcha)(funiculus lateralis)- tepaga va pastga harakatlanuvchi

Orqa miya pardalari(meninges)

Qattiq parda (dura mater) (6)

O’rgimchaksimon parda (arachnoidea mater) (5)

Yumshoq parda (pia mater) (4)

Cavitas epiduralis- suyakusti parda va dura mater oralig’ida bo’lib, yog’ kletchatkasi va venoz chigallar bilan to’lgan (1)

Spatium subdurale – dura mater va arachnoidea mater orasida (2)

Cavitas subarachnoidale – arachnoidea va pia mater orasida.(3)

Tishsimon boylam (Ligamentum denticulatum)-orqa va oldingi ildizlar oralig’ida ko’ndalangiga tortilgan. (7)


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