Peripheral and Autonomic Nervous System Flashcards
two divisions of autonomic nervous system
sympathetic and parasympathetic
hyeralgesia
high response to pain
dysesthesia
altered feeling of pain, stimulus should cause pain
paresthesia
decrease in feeling of pain
allodynia
something that shouldn’t be painful but is
denervation
no EMG activity of muscle approximately a weel after injury
Wallerian degeneration
degeneration of distal part of an axon after a nerve lesion
Guillain-Barre syndrome
autoimmune polyneuropathy
motor more than sensory
body attacks myelin sheath
myasthenia gravis
autoimmune disease where ACh receptors are damaged at neuromuscular junction
botulism
ingesting improperly stored foods. toxin interferes with release of ACh from motor axon
myelinopathy
slowed nerve conduction velocity
axonopathy
decreased amplitude
mechanoreceptors
respond to pressure and stretch
chemoreceptors
respond to chemical concentrations, such as signals from medulla or hypothalamus
nociceptors
respond to stimuli that threaten or damage tissue
thermoreceptors
respond to very small changes in temperature
