1. Cerebellum function: Answer motor coordination of voluntary movementsequilibrium muscle tone subconscious coordinates and refines movement 2. Age-related neurological changes: Answer general atrophy with steady loss of neuronstructure -> loss of vibration senses and decreased reflexes nerve velocity conduction decreases -> slower reaction times increased delay at the synapse ->decreased touch/pain sensation ->taste and smell decreased 3. CN I abnormal findings: Answer anosmia (loss of smell) 4. Possible causes of CN I abnormalities: Answer intracranial neoplasm, head trauma,cocaine use, Parkinson's 5. CN II abnormal findings: Answer defect or absent central vision or peripheral vision absent light reflexpapilledema optic atrophy