Tumors, Seizure Disorders, Cerebrovascular Accidents, and Traumatic Brain Injury 0.0 / 5 ? PsychologyBiologyUniversityAll boards Created by: ShannonCreated on: 25-02-15 18:23 Malignant gliomas Contain tumour initiating cells from neural stem cells. Resistant to chemotherapy and radiation. 1 of 18 Bevacizumab Retards growth of malignant tumours by restricting their formation of blood vessels. 2 of 18 Partial seizures Localised as they begin with scar tissue, produce an aura and personality changes. 3 of 18 Complex partial seizures Same as previous =, but can also produce profound effects on consciousness 4 of 18 Generalised seizures Affect whole brain. Most serious type = grandmal convulsions. Caused by involvement of brain's motor systems. 5 of 18 Tonic phase Rigidity/stiffening of muscles and loss of consciousness 6 of 18 Clonic phase Rhythmic jerking and spasms. Rapid flexing and relaxing of head, legs and elbows. Followed by deep sigh, where they return consciousness. 7 of 18 Abstinence/heavy alcohol consumption induced seizures Caused by a sudden release from inhibition 8 of 18 Seizure surgery Used instead of anti-convulsant drugs for intractable seizure disorders, caused by abnormal focus. Usually involves medial temporal lobe. 9 of 18 Cerebrovascular accidents Occur through ruptured blood vessel or occlusion of blood vessel through embolusn(debris lodged in artery) or thrombus (blood clot within vessel) 10 of 18 A lack of blood flow can damage neurons by stimulating big release of... 1.Glutamate-inflammation 2.Phagocytes-by activated microglia 3.Production of free-radicals 4.Activation of Calcium-dependent enzymes. 11 of 18 A metastatic oligodendrocytoma A type of malignant tumour derived from glial cells 12 of 18 Anticonvulsant drugs work by Enhancing the effectiveness of inhibitory synapses in the brain 13 of 18 What does prolonged interruption to blood supply result in? Ischaemia 14 of 18 What is the main cause of neuron cell death after stroke? Over stimulation of nerve cells by abnormally high synaptic levels of glutamate. 15 of 18 Degeneration of the caudate nucleus and putamen characterises which degenerative disorder? Huntington's disease 16 of 18 Which drug has been shown to improve cognitive control in Alzheimer's disease? Acetylcholinsterase inhibitor drugs 17 of 18 The etiology of MS may involve what? Damage to the blood-brain barrier by a virus. 18 of 18
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