Pathology of the Nervous System - Recognising the Abnormal Flashcards
Prevalence of neurological disease - dogs, ruminants, rat
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Brain at necroscopy - major anatomical changes and types of lesions (7)
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Gross neurological specimen samples taken to be representative (6)
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What stain is used for neuroanatomy?
Luxol fast blue - stains myelin (white matter)
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Frontal lobe/basal nuclei
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Thalamus
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Midbrain
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Pons
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Brainstem/cerebellum
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Brainstem
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Spinal cord
How does lesion distribution affect clinical signs? (Lobes of brain and their func) (4)
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Spinal cord anatomy (16)
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Neuroanatomy - where do sensory and motor nerves enter and leave?
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Symmetrical lesion (3)
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Focal lesion (2)
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Multifocal lesion (2)
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Lesion in meninges
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Lesion in ventricles
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Difference between lesions in white and grey matter
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What is malacia? (3)
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CNS fibrosis (2)
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Describe the lesion
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Major lesion patterns (5)
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Causes of traumatic brain injury (4)
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Primary traumatic brain lesion (2)
- Mechanical disruption of tissue - penetrating wounds (compressed fracture of skull)
- Haemorrhage and oedema (vasogenic) - brain swelling, confined -> knock-on effects in tissues
Secondary traumatic brain injury lesion (2)
- Occurs within hours to days after injury, cascade of changes, frequently fatal
- Haemorrhage and oedema (cytotoxic)
Effects of blunt force trauma to brain - coup and contre-coup lesions (4)
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What is contusion? (4)
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Effects of trauma - haemorrhage (4)
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Effects of trauma - oedema
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What are penetrating brain injuries caused by? (5)
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What are the effects of penetrating brain juries? (5)
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Accidental and pathological causes of traumatic spinal cord injuries. (9)
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Trauma to the spinal cord - contusion (4)
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Trauma to the spinal cord - compression (5)
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Intervertebral disc disease - dogs, pathology, causes (6)
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What is cervical stenotic myelopathy “Wobbler Syndrome”? (6)
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Describe the lesion
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