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23 Cards in this Set

  • Front
  • Back
NERVOUS SYSTEM
Brain and spinal cord
Peripheral nerves
the brain and spinal cord are covered by
meninges
Encephalitis
infection of the brain
Meningitis
infection of the meninges
normal microbiota of ns
Nervous system normally sterile
BACTERIAL DISEASES OF THE NERVOUS SYSTEM (place marker)
Bacterial meningitis
Lysteria moncytogenes
Tetanus
Botulism
Leprosy
Bacterial meningitis
Caused by many species of bacteria
three most common causes of bacterial meningitis
Haemophilus influenzae
Streptococcus pneumoniae
Neisseria meningitides
Most common cause of meningitis outbreak
Neisseria meningitides
Lysteria moncytogenes
causes what disease in what population
Causes meningitis in newborns
Tetanus
caused by
bacteria produces
source
Caused by Clostridium tetani
Produces potent neurotoxin
Picked up in the soil
symptoms of teatnus
Over stimulation of skeletal muscle, causing muscle to seize, interferes with the AcHase, it never breaks down the AcH in the neuromuscular junction, very scary when it effects the diaphragm
Botulism
caused by
bacteria produces
source
Caused by Clostridium botulinum
Produces potent exotoxin
Can effect canned foods
What does botulism do to the body?
does the opposite of tetanus, prevents muscle contraction
Leprosy
cause
result
effect
Caused by Mycobacterium leprae
Results in loss of skin sensation
Effects sensory nerves of peripheral nervous system, the skin loses its ability to feel
VIRAL DISEASE OF THE NERVOUS SYSTEM
(place marker)
Polio
Rabies
Polio
cause
result
Caused by polio virus
May result in paralysis
Rabies
cause
result
fatality
Caused by rabies virus
Results in acute encephalitis
Nearly 100% fatal
FUNGAL DISEASES OF THE NERVOUS SYSTEM
(place marker)
Fungal meningitis
Fungal meningitis
cause
associated with
Caused by Cryptococcus neoformans (yeast)
Associated with chicken excrement
PROTOZAN DISEASES OF THE NERVOUS SYSTEM (place marker)
Nagleria fowleri
African sleeping sickness
Nagleria fowleri
point of invasion
fatality
Invades brain from nasal mucosa
Nearly 100% fatal
African sleeping sickness
cause
vector
what is it?
Caused by Trypanosoma brucei
Transmitted by tsetse fly
Blood flagellates, transmitted by bug bites