PSY 242 Chapter Notes - Chapter 10: Vestibulocochlear Nerve, Brain Ischemia, Intracerebral Hemorrhage
Document Summary
Began with slight balance problems, going deaf in right ear, numbness on right side of mouth, difficulty swallowing, right tear ducts not releasing enough tears. During surgery his auditory-vestibular nerve was transected, leaving him permanently deaf and without vestibular function on right side; partial hemifacial paralysis (blinking and tearing problems) Tumour (neoplasm = new growth): mass of cells that grows independently of rest of body. Meningioma: tumour that grows between meninges (the three membranes that cover cns) Encapsulated tumours: grow within their own membrane; includes meningioma tumours; easy to identify on ct; influence brain function only by the pressure exerted on surrounding tissue; benign. Benign tumours: tumours that are surgically removable with little risk of further growth in body. Malignant tumours: difficult to remove or destroy completely; any cancerous tissue remaining. Infiltrating tumours: grow diffusely through surrounding tissue continues to grow. Gliomas: tumours that develop from glial cells; infiltrating, rapidly growing, and common.
