week 11 Flashcards
define brain damage
injury of any part of the cns or pns
differences in acute and chronic disease
acute disease is a short term epsiode requiring healthcare, but you recover. chronic disease is a long term condition that gets progressibly worse.
traumatic brain injury
external force
aquired brain injury
intnernal causes
encapsulated tumours
20%, benign and removable.
infiltraiting tumours
grow into surronding tissue, usually originate from glial cells.
what is dementia
incurable illnesses featuring a progressive decline in memory, intellect, rationality, social skills and emotion. early stages show memory loss, confusion, personality change and apathy.
alzheimers
most common form of dementia. late onset, no known cause or cure. all we know is the brain goes weird in the frontal ortex first and then spreads.
picks disease
form of dementia, 12-15% of dementia cases. involves reduction of grey and white matter in the frontal and temporal lobes, and in corpus callosum. inherited but cause and cure are unkown. symptoms similar to dementia except they also get aphasia, perversion and sexual behaviour
differences between picks and alzheimers
picks is earlier onset, personality changes before memory does, and they loose inhibitions (becoming hypersexual etc).
parkinsons
middle and old age. tremors. happens because of the degeneration of neurons in the substantia nigra that release dopamine to the basal ganglia
parkinsons treatment.
none of these work forever.
l-dopa injections, injecting dopamine.
and deep brain stimulation
what is mirror therapy?
when a person has phantom limb problems, a shrink might put a mirror next to their real arm so it looks like they have two. this tricks the brain and the person can begin to unclench their fist.
neurons and age
we keep producing neurons till we die. neuroplasticity is stronger as children, but still a thing as adults (especially with brain training and excersize).
