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Concept Dis. Ch 26
Nervous System
Question | Answer |
---|---|
degenerative disease of nervous system w/characteristic structural abnormalities within neurons | Alzheimer disease |
congenital malformation; absence of brain, cranial vault, & scalp as result of defective closure of neural tube | anenchephaly |
dilatation of structure, such as aorta, cerebral artery, or part of ventricular wall | aneurysm |
middle of 3 meninges that cover brain | arachnoid |
infectious nucleic acid particle transmitted by mosquitoes | arthropod-borne-virus |
large stellate cell having highly branched processes; form structural framework of nervous system; 1 of neuroglial cells | astrocyte |
stroke caused by blockage of cerebral artery by blood clot that has formed elsewhere in circulatory system & transported in bloodstream to brain | cerebral embolus |
stroke caused by rupture of cerebral artery, which allows blood to escape under high pressure into brain | cerebral hemorrhage |
stroke caused by thrombosis of arteriosclerotic cerebral artery | cerebral thrombosis |
injury to brain resulting in disturbance of cerebral blood flow caused by cerebral thrombosis, embolism, or hemorrhage | cerebrovascular accident CVA |
outer covering of brain & spinal cord | dura |
inflammation of brain | encephalitis |
cystic lesion of degenerated brain tissue as result of obstruction of cerebral blood flow | encephalomalacia |
encephalomalacia is the same as | cerebral infarct |
any brain tumor arising from glial cells of brain | glioma |
type of polyneuritis resulting from autoimmune reaction to myelin | Guillain Barré syndrome |
paralysis of one side of the body | hemiplegia |
dilatation of ventricular system caused by pressure arising from accumulation of cerebrospinal fluid within ventricles | hydrocephalus |
membranes covering brain & spinal cord | meninges |
benign tumor arising from meninges | meningioma |
inflammation of meninges | meningitis |
protrusion of meninges through defect in spinal vertebral arches | meningocele |
type of spina bifida characterized by protrusion of meninges & cord through defect in vertebral arches | meningomyleocele |
malignant neoplasm of plasma cells | multiple myeloma |
chronic disease characterized by focal areas of demyelination in CNS, followed by glial scarring | multiple sclerosis |
slight tension present in resting muscles | muscle tone |
inflammation of spinal cord | myelitis |
ectodermal tube formed in embryo gives rise to brain & spinal cord | neural tube |
supporting cells of tissue of nervous system | neuroglia |
nerve cell, including nerve cell body & its processes | neuron |
1 type of neuroglia that surrounds nerve fibers within CNS | oligodendroglia |
abnormal sensation, such as burning, prickling or numbness | paresthesia |
chronic disease of CNS characterized by rigidity/tremor, caused by decreased concentration of dopamine in CNS | Parkinson disease |
innermost of 2 membrane covering brain & spinal cord | pia |
inflammation of multiple nerves | polyneuritis |
protein infectious particle responsible for Creutzfeldt-Jakob disease & other degenerative disease of nervous system | prion |
incomplete closure of cerebral arches over spinal cord | spina bifida |
protrusion of meninges & neural tissue through defect | cystic spina bifida |
any injury to brain caused by disturbance of its blood supply | stroke |
space between arachnoid & pia, containing large blood vessel supplying brain | subarachnoid space |
temporary cerebral dysfunction as result of transient obstruction of cerebral vessel by bit of artheromatous debris/blood clot, usually embolized from arteriosclerotic plaque in carotid artery | transient ischemic attack (TIA) |
hollow cavities in the brain | ventricles |
arbovirus that infects birds, animals, & humans | West Nile virus |
nerve cells within the body are insulated with | myelin |
usually becomes fully sealed in the 4th week of fetal development | neural tube |
motor system that controls voluntary functions such as walking and balance | extrapyramidal system |
subarachnoid hemorrhage occurs between the | arachnoid and pia |
failure of the fusion in the vertebral arches is common to | all types of spina bifida |
bladder dysfunction, bowel dysfunction, loss of feeling and sensation in extremities, & loss of motor function in legs are long term effects of treating a | large meningomyelocele |
cystic spina bifida & anencephaly can be detected by testing for increased levels of | AFP in amniotic fluid |
relearning walking and balance may be easier than relearning use of a paralyzed upper limb after | a stroke |
Hemophilus influenzae & meningococcus are __ __ transmitted from person-to-person | meningitis-causing bacteria |
Poliomyelitis & West Nile virus are caused by | arboviruses |
most solitary Schwann cell tumors are | benign |