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SBGR Nervous System

SBGR ALH 185 PNS & ANS (2012 EK)

dermatome Bilateral region of the skin surface monitored by a single pair of spinal nerves
shingles Viral infection of the dorsal ganglia
nerve plexus Complex interwoven network of nerves
corticospinal pathway Provides voluntary control over skeletal muscles
reflex arc Wiring of a single reflex
Babinski sign Fanning of the toes produced by stroking an infant’s foot on the lateral side of the sole
plantar reflex Curling of the toes in adults produced by stroking the lateral side of the sole
referred pain Sensation of pain in a part of the body other than its actual source
Parkinson’s disease Results when neurons of the substantia nigra are damaged or they secrete less dopamine
Cerebral palsy Caused by the improper development of motor pathways
Amyotrophic lateral sclerosis (ALS) Commonly known as Lou Gehrig disease
Alzheimer’s disease Progressive disorder characterized by the loss of higher-order cerebral functions
Multiple sclerosis Characterized by recurrent incidents of demyelination that affects axons in the optic nerve, brain and spinal cordcommunication, social skills, and repetative behaviors
somatic nervous system Provides conscious and subconscious control over the skeletal muscles
autonomic nervous system Controls visceral functions largely outside of our awareness
sympathetic division Responsible for fight or flight response
phrenic nerve Major nerve of the cervical plexus which provides the entire nerve supply to the diaphragm
stretch reflexes Simplest and fastest reflex arc
withdrawal reflex Moves affected parts of the body away from a stimulus
Senile dementia Mental deterioration (loss of intellectual ability) that is associated with old age
Created by: SBGrandRapids