A izinzwa zomgogodla is a i-anesthesia somzimba ongezansi. Iqukethe ukujova isibulali-zinzwa ngqo ku uketshezi oluthile lwe-cerebrospinal (CSF), uketshezi oluzungezile umgogodla, ezingeni lomgogodla ophansi phakathi kwama-vertebrae amabili ase-lumbar. Kuwuhlobo lwe-anesthesia esetshenziswa kakhulu ekuhlinzeni.

I-Spinal anesthesia ifana ne-i-epidural anesthesia, kepha umjovo we-anesthetic awenzeki "egumbini" elifanayo.

Ngempela, kunama-membrane angu-3 ezungeze isimiso sezinzwa esimaphakathi (lawa ama-meninges):

• la dura mater
• thearachnoid
• la kanye mater

Lezi zihlukanisa izindawo ezimbili: isikhala se-epidural kanye nesikhala se-subarachnoid (phakathi kwe-arachnoid ne-pia mater, equkethe i-CSF),

I-anesthesia yomgogodla ihilela ukujova isibulala-zinzwa endaweni ye-subarachnoid, kuyilapho i-anesthetic, ngesikhathi se-epidural, ayidluli ukuqina (ulwelwesi oluvikelayo lwe-cerebrospinal fluid).