Camelidae and Cervidae Central Nervous System Trauma – NAVLE Study Guide

Overview and Clinical Importance

Central nervous system (CNS) trauma in camelids and cervids represents a significant clinical challenge requiring rapid assessment and intervention. These species present unique anatomical and physiological considerations that influence diagnosis, treatment, and prognosis. Traumatic brain injury (TBI) and spinal cord injury (SCI) can result from falls, kicks from herdmates, vehicular trauma, predator attacks, and handling injuries.

Camelids, including llamas and alpacas, demonstrate a notably higher prevalence of cervical luxations and subluxations compared to other domestic species. Their long necks and unique vertebral anatomy make them particularly susceptible to cervical trauma. Cervids (deer, elk, moose) present additional challenges due to their wild or semi-wild nature, seasonal antler-related injuries, and the need to differentiate trauma from infectious CNS diseases like chronic wasting disease (CWD).

Species-Specific Neuroanatomy

Camelid Neuroanatomy

Camelids possess seven cervical vertebrae, twelve thoracic, seven lumbar, five sacral, and 11-17 caudal vertebrae. The cervical spine demonstrates a lordotic curvature similar to the human lumbar spine, with natural posture aligning cervical vertebrae vertically to resist gravitational loading.