[15] The posterior rami provide spine muscle and trunk skin sensation. The most complex nerve plexus is the brachial plexus, consisting of cervical nerves 5 through 8 (C5 to C8) and thoracic nerve ...

Upstream lymphatic region #3 includes lymphatics near the cribriform plate that drain to lymphatics in the olfactory mucosa en route to the posterior nasal lymphatic plexus and NPLP. In contrast ...