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ITM nervous system
ITM review info
Question | Answer |
---|---|
3 layers of meninges | dura mater, arachnoid, pia mater |
cervical plexus | nerves C1-C4, sensory-neck, motor-neck |
brachial plexus | C5-T1 upper limbs |
lumbar plexus | L1-L4 sensory-genitals, thigh, leg,foot motor-hip flexors, extensors, adductors |
sacral plexus | L5-S3 sensory-foot, buttocks, perineum, thigh, leg motor-leg,foot,buttocks, TFL, hip rotators |
motor | front of body-brain |
sensory | back of brain, spinal cord |
connective tissue that surrounds each nerve fascicle | perineurium |
section of skin & underlying tissue that is inervated by a single spinal nerve | dermatone |
inner layer of the meninges is... | pia mater |
this nerve plexus has 3 divisions: superior, middle, inferior: that supply the skin & muscles of the upper limbs | brachial plexus |
space between the skull & duramater | epidural |
reflex used to evaluate sensory nerve, motor nerve, & the muscle supplied by that nerve is... | deep tendon reflex |
umbrella term that covers any disorder that damages brain tissue | stroke |
infection of the brain | encephalitis |
sudden involuntary series of muscle contractions | seizures |
weakening & bulging of an artery | aneurysm |
damage of upper motor neuron which results in increase rigidity & exaggerated response to reflexes | spastic paralysis |
a neurotransmitter which is a natural pain killer | endorphin |
produces the myelin in the peripheral nervous system | schwann cell |
unidirectional propagation wave | nerve impulse |
damage of lower motor neuron which results in lack of signals to muscles, causes absence of movement | flaccid paralysis |
partial motor paralysis on one side | hemiparesis |
vesicles appear along a cutaneous nerve distribution usually on one side | herpes zoster |
when soft tissue exerts inappropriate pressure on a nerve | entrapment |
1-2 months after a viral infection WBC demyelinate nerves, paralysis starts in legs & moves upward | guillian-barre syndrome (infectious polyneuritis) |
inflammation or degeneration of the peripheral nerves | neuropathy |
autoimmune disorder in which demyelination occurs & hard plaquelike lesions replace destroyed myelin | multiple sclerosis |