Aging by Weiner Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
| Question | Answer |
| Define senescence. | loss of function associated with passage of time |
| What anatomic changes are expected in the brain of an 80 y/o as part of the normal aging process? | 10% atrophy of brain tissue/white matter, cerebrum doesn't quite fill the cranium and gyri are diminished in size, sulci are larger |
| What percent loss of dopaminergic neurons is necessary before signs and sx of Parkinson dz are evident? | 80% |
| Name the pigment that accumulates in cells with again. | lipofuscin granules |
| What area of the brain is first vulnerable in Alzheimer's dz? | hippocampus |
| Name possible causes of brain senescence. | free radical damage, glycation, unfolding/misfolding of proteins, neurotoxic factors |
| What disorders are associated with hypercortisolemia? | major depression and PTSD, also hippocampal atrophy |
| What are autonomic effects of aging? | reduced beta-adrenergic sensitivity: lower max heart rate and contractility, etc. not as aware of hypoglycemia decreased baroreceptor sensitivity: orthostatic HTN vasovagal syncope |
| Name histologic signs of Alzheimer dz. | neurofibrillary tangles, beta amyloid plaques |
| What are the 3 diseases associated with aging? | Parkinson, Alzheimer's and cerebrovascular dz |
Created by:
sirprakes
Popular Neuroscience sets