Complex sentence: The central techniques include so called neuroaxial blocks epidural anaesthesia, spinal anaesthesia, the peripheral techniques can be further divided in plexus blocks like e.g. the brachial plexus blocks, and single nerve blocks.
Split into simpler sentences: The central techniques include so called neuroaxial blocks (epidural anaesthesia, spinal anaesthesia). The peripheral techniques can be further divided in plexus blocks such as brachial plexus blocks, and single nerve blocks.