The structures of the PNS are nerves and:

1. The PNS is visible as distinct structures. 2. Two kinds are named for it. 3. The structures of the PNS are referred to as ganglia and nerves. 4. So the answer is ganglia. _Source: OpenStax 'Anatomy and Physiology 2e', Ch 12 'The Nervous System and Nervous Tissue'_