Terms in this set (197)
Which body system is Parasympathetic nervous system
responsible for conserving
energy and body resources
which system responds to stress Sympathetic nervous system (SNS)
by preparing the body to defend
itself
how is blood flow redistributed by blood flow to the muscles is increased while blood flow to GI and
the sympathetic nervous system integumentary is decreased
(SNS)
how are primary brain injuries focal or diffuse (aka multifocal)
classified
specific, grossly observable brain lesions that occur in a
focal brain injuries
precise location Epidural and subdural hemorrhages
include brain injury due to hypoxia, meningitis, encephalitis, and
damage to blood vessels
diffuse brain injuries The brain is confined in a limited space so increased pressure can
cause collateral dysfunction: Diabetes Insipidus (ADH not secreted
thus polyuria)
, affected at the t5-t6 level or above; characterized by
paroxysmal HTN (up to 300 mmHg systolic), a pounding
autonomic hyperreflexia headache, blurred vision, sweating above the level of the lesion
with flushing of the skin, nasal congestion, nausea, piloerection
caused by pilomotor spasm, and bradycardia (30-40 beats/min)
location of lesions in cases of individual most likely to be affected have lesions at the T5-T6 level or above
autonomic hyperreflexia
bradycardia (30-40bpm) is a sx of hyperreflexia
Stimulation of the carotid sinus -->vagus nerve -->sinoatrial (SA) node.
sequence of events that lead The intact ANS reflexively responds with an arteriolar spasm that
to hyperreflexia induced increases blood pressure.
bradycardia Baroreceptors in the cerebral vessels, the carotid sinus, and the
aorta sense the HTN and stimulate the PNS. The heart rate
decreases, but the visceral and peripheral vessels do not dilate
because efferent impulses cannot pass through the cord
leading cause of dementia and one of the most common causes of
Alzheimer's disease
severe cognitive dysfunction in older adults
what are the greatest risk factors age, family history
for Alzheimer's disease
what are the proposed protective low calorie diets, estrogen replacement at time of menopause,
factors for Alzheimer's disease NSAIDs, physical activity, antioxidants, the presence of apoE2
what genetic susceptibility tests PSEN 1 (presenilin) on chromosome 14, PSEN 2, and APP (amyloid
are used to screen for early- precursor protein) on chromosome 21
onset AD
When can a specific diagnosis of postmortem examination
AD be given
what is the single greatest risk hypertension (87% of occurrences)
factor for stroke
arterial HTN, insulin resistance and DM, elevated cholesterol or
low high density lipoprotein (HDL), elevated lipoprotein- A level,
hyperhomocysteinemia, congestive heart disease and PVD,
what are common risk factors for asymptomatic carotid stenosis, polycythemia and
stroke thrombocythemia, a-fib, postmenopausal hormone therapy, high
sodium intake above 2300mg, low potassium intake less than
4700mg, smoking, lack of physical activity, obesity, chronic sleep
deprivation
which autoimmune disease Guillain-Barre syndrome
typically presents 2-4 weeks
following a bacterial/viral
infection such as respiratory or