All the cranial nerve nuclei, except that of the trochlear nerve (CN IV) supply nerves of the same side of the body. Lesions occurring in any one of the nuclei resemble the severing of the nerve theyâre associated with. Nerves CN I-V. The olfactory nerve is the first cranial nerve (CN I). It is purely sensory and is responsible for smell.
Related Terms. Also called point of demarcation (POD), demarc extension, or demarc, it is the physical point at which the public network of a telecommunications company (i.e., a phone or cable company) ends and the private network of a customer begins - this is usually where the cable physically enters a building.
In doing this, it is often hard to differentiate where line and network ownership begins and ends. Exactly how much of the network belongs to the company, and how much belongs to the customer? The way to discern this difference is by using the Demarcation Point. The Demarcation Point is the physical point where the public network ends and the private network of a customer begins. Simply put, the Demarcation Point, or Demarc, marks the point where the customerâs network interfaces with the network owned by another company or additional party. While the locational definition of this point can vary depending on region, the Demarc is typically located at the point where the cable physically enters a building, or the customerâs premises.