Neuroanatomy. Neuropathophysiology. Principles and dysfunction of neuro transmission and control of intracranial pressure. Assessment of reflexes. Life span psychopathophysiology. Treatment modalities. Major psychiatric illness. Theoretical basis of mental health nursing practice. Biopsychosocial concepts of mental health nursing. Psychiatric emergencies and critical incidents. Psychopharmacology. Diagnostic and assessment tools. Biopsychosocial interventions.