VNA

VNA may refer to:

== Medicine == Vagal nerve activity, activity of the vagus nerve which connects the brain to the heart Ventral anterior nucleus, a nucleus of the thalamus Vertebral nerve activity, activity of the vertebral nerve, a nerve near the backbone and neck in vertebrates Virus-neutralizing antibody, antibodies that are specialized to bind to viral components such as viral glycoproteins. Vendor Neutral Archive, an archive for medical image storage that is independent of the picture archiving and communication system (PACS) that utilizes those images