Neurology Flashcards
What is the central nervous system?
Brain and spinal cord; oligodendrocytes
What is the peripheral nervous system?
Everything else; Schwann cells
What is the autonomic nervous system?
Automatic stuff
What is the somatic nervous system?
Moving your muscles
What is the parasympathetic system?
Rest and Digest = slows stuff down
How does the parasympathetic system behave?
DUMBBELS
Diarrhea Urination Miosis "constrict" Bradycardia Bronchoconstrict Erection "point" Lacrimation Salivation
What is the sympathetic system?
Fight or Flight= speeds stuff up
How does the sympathetic system behave?
Opposite of Parasympathetic
Constipation Urinary retention Mydriasis "eyes wide with fright" Tachycardia Bronchodilate Ejaculation "shoot" Xerophthalmia (dry eyes) Xerostoma (dry mouth)
What is Cushings triad?
HTN, bradycardia, irregular breathing
What is Budd-Chiari?
Hepatic Vein obstruction
What is Arnold-Chiari?
Foramen magnum obstruction
What is anencephaly?
Notochord did not make contact with brain = only have medulla
What is an Encephalocele?
Brain tissue herniation
What is a Dandy Walker malformation?
No cerebellum, distended 4th/ lateral ventricles
What is an Arnold-Chiari malformation?
Herniation of cerebellum through foramen magnum
Type I: cerebellar tonsils (asymptomatic)
Type II: cerebellar vermis / medulla => hydrocephalus, syringomyelia (loss of pain/temp)
What is Spina bifida occulta?
Covered by skin w/tuft of hair
What is Spina bifida aperta?
Has opening (high AFP)
What is a Meningocele?
Sacral pocket w/ meninges in it
What is a Meningomyelocele?
Sacral pocket w/meninges and nerves in it
What is a Open angle glaucoma?
Overproduction of fluid => painless ipsilateral dilated pupil, gradual tunnel vision, optic disc cupping