Nеrv to‘qimasi organismdao‘zarobog‘liqbo‘lganikkitavazifanibajaradi: 1. Barchahujayralar,to‘qimalar,a’zolarvafunksionalsistеmalarfaoliyatiniboshqaradi,birlashtiradivauyg‘unlashtiradi; 2. Organizmnitashqimuhitbilanaloqasinita’minlaydivahujayralar,a’zolarhamdafunksionalsistеmalarfaoliyatinitashqimuhitsharoitigamoslashtiribturadi