1/78
Looks like no tags are added yet.
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No study sessions yet.
Heminglect syndrome Causes
Stroke or damage to the right side of the brain, usually in the right parietal cortex(important for involuntary attention)
Heminglect syndrome symptoms
1. The patient is unaware of the left side of his body
2. May eat food from one side
3. Write from one side
4. May ignore the other side of their visual(cant notice stimuli from left side)
ADHD symptoms
Unable to focus'
Hyperactivity
Impulsive behavior
ADHD treatments
Methylphenidate(improve attention by increasing dopamine and norepinephrine)
Schizophrenia symptoms
Hallucinations
Delusions
Hard to make decisions
Loss of motivation and pleasure(anhedonia)
inpairment in selective attention
Prospronogia causes and symptoms
The inability to identify a familar face (family members, friends)
Caused by the damage to the FFA and PPA
HAND(HIV associated neurological disorder) symptoms
Mainly affects processing speed and motor skills
causes of epilepsy
Stroke, Brain tumor, Traumatic brain injury, Central nervous system infection,
Generalized seizure and types
a seizure that affects both sides of the brain
absence seizures and tonic-clonic seizures
Absence (Petitmal) Seizures
Causes rapid blinking or staring spells
type of general seizure(both hemispheres)
tonic-clonic seizure
Tonic phase: muscles stiffening
clonic phase: muscle spasms and convulsion
type of general seizure(both hemispheres)
secondary generalized seizure
Partial seizure that transitions to generalized seizure activity
focal seizure and complex focal seizure
A simple focal seizure can cause twitching or a change in sensation, triggering strange smells or tastes.
a complex one can cause loss of consciousness or confusion
Cerebral palsy causes
Head injury to brain areas related with movement
Bleeding in the brain
infection
Cerebral palsy symptoms
Damage to motor areas, stiffness and floppiness in muscles and involuntary movements may occur
Ischemic stroke causes
a blockage in the blood vessels(usually because of a blood clot)
athersclerosis(build up of fatty plaques in vessels)
Ischemic stroke treatment
Tissue plasmogen activator(tPA) dissolves clots and opens up the blood stream
hemorrhagic strokes causes
1. high blood pressures
2. Aneurysm(weak blood vessel walls)
3. Amyloid buildup in blood vessels
what is Peripheral neuropathy(a symptom of diseases)
Damage to the peripheral nerves in the peripheral nervous system
Peripheral neuropathy
Tingling and numbness
Muscle weakness, Burning or shooting pain
hint(not a main one)
quadriplegic cause and symptoms
damage to the spine
paralysis of limbs
strabimus
Causes
Damage to ocular nerves
Symptoms
Eye deviations
Middle sightness
Outward deviation
fragile X syndrome Causes
genetically mutation of FMR1 gene in the chromosome X
fragile X syndrome symptoms
1. Autism
2. Delay in learning basic skill(language, crawling, walking)
3. Flat feet, low muscle tone
Autism symptoms
1. Bad social skills(bad at social cues, sharing emotions)
2. Could have no speech at all
3. Intense focus on one thing
4. Unusual sensitivity to sensory inputs
Megalencephaly and microcephaly Causes
Too much proliferation of neurons
Genetical mutation
Megalencephaly and microcephaly Symptoms
Bigger head for mega and smaller head for micro
Intellectual disabilities
Delayed motor development
Delayed speech development
Seizures
Migraines causes
Changes in the brain stem and interactions with the trigemial nerve
Increase activity in the cerebral blood vessels
migraines symptoms
1. Throbbing head pain
2. Hypersensitivity to light
3. Migranous aura(flashing lights and lines)
Migraines treatments
triptan(activates specific serotonin receptors )
Congenital insensitivity to pain
the condition of being born without the ability to perceive pain
Brocas aphasia(non fluent) Symptoms
1.Person can only say short phrases and words
2. Reading and comprehension is fine though
3. Can't write
Wernickes aphasia(fluent) symptoms
1. Fluent speech but the words are arranged wrongly
2. Comprehension, reading, writing, are all impaired
Global aphasia definition and where the damage is
Cant read, write, comprehend, and speak
damage to both brocas and wernickes area
Conduction aphasia causes
1. Damage to the connection between the brocas area and wernickes area
2. Damage specifically to the arcuate fasciculus which is a white matter tract
Conduction aphasia Symptoms
1. Speech and comprehension are good
2. Word finding and repeating words is bad
Dyslexia symptoms
Difficulty of pronouncing phonemes ( letter sounds)
Difficulty pronouncing new words
Abnormal signaling of the language parts of the brain to memory
Conductive hearing loss causes
Caused by a ear tumor or changes in middle ear pressure
damage up to the oval window
Sensorineural hearing loss causes
Damage to areas of the inner ear
Caused hair cell damage, brain tumor
Narcolepsy causes
Low levels of orexin(arousal NT)
Narcolepsy Symptoms
1. Random sleep attacks
2. Cataplexy attacks(paralysis of the muscles)
3. Sleep paralysis(cant move body waking up or starting to sleep)
4. Hallucinations of getting attacked
5. Hypnagonic hallucinations as you go to bed
Obstructive sleep apnea Causes
Obesity
Genetically inherited enlarged tonsil and other throat or mouth characteristics
Obstructive sleep apnea symptoms
Terrible sleep
Wake up in the middle of the night to breath
Snoring - gasping for air- cycle repeats
3 types of insomnia and definition
Onset insomnia, Maintenance insomnia, Fatal familial insomnia
insomnia, REM sleep disorder treatments
Benzodiazepines(induces sleep because it enhances the effects of GABA inhibitory NT)
Restless leg syndrome causes
Iron deficiency
Incorrect dopamine signaling
Restless leg syndrome symptoms
Tingling or buzzing in someones limbs causing them to voluntarily move them
Isnt classified as a sleeping disorder but it can deter sleep
Periodic limb movement disorder
Involuntary kicking or swinging of the legs and arms
Bipolar disease Symptoms
Mania symptoms
-Recklessness
-Easily distracted
Depression symptoms
-Hopelessness
-loss of pleasure and interest
Bipolar Disease Treatment
Lithium drugs(antipsychotics that help decrease mania symptoms)
Antidepressants for depression symptoms
Major depression Treatments
SSRI's (seratonin reuptake inhibitors, more serotonin in the brain)
SAD(seasonal affective disorder)
a type of depression that is related to changes in seasons and begins and ends about the same time every year
PTSD symptoms
1. Reliving the traumatic event(flashbacks)
2. Avoidance of things that remind you of the traumatic event
3. hyperarousal(very wary of your surroundings)
4. Dizziness, fainting,
PTSD treatment
Prazosin and beta blockers which decrease norepinephrine(flight or fight NT)
Borderline personality disorder symptoms
condition marked by extreme instability in mood, identity, and impulse control, Intense fear of abandoment, Views of others can suddenly change
, Fear of being alone
Korsakoff's syndrome symptoms
1. Inability to form new memories after the onset of the disease
2. Short-term memory is cooked
3. Gaps in long-term memory
4. confabulation(filling in memory with false info)
No behavioral or personality changes
Korsakoff's syndrome causes
1. Both are caused by vitamin B1 deficiency(thiamine)
2. B1 deficiency caused by alcohol abuse or malabsorption(inability to absorb the vitamin)
Alzheimers disease Causes
1. Amyloid beta plaques(Neuritic plaques)
tau(tangles within neurons)(Neurofibrillary tangles)
Shrinked brain
2. Mutation of the PSEN gene, which cleaves the amyloid precursor protein(producer of amyloid beta peptides)
3. TOMM40 mutation, which causes a change in the length of the intron
4. Loss of function Mutation in the TREM2 allow the amyloid beta protein to build without restraint
Alzheimers disease Symptoms
Early: Memory problems, Difficulty calculating and concentrating
Mild: Personality and behavioral changes, Taking longer to complete certain tasks, getting lost
Moderate: Forget who family are, Hallucinations, Can't learn new things
Severe: Bedridden,Weight loss,Bowel issues
Frontotemporal dementia causes
Tau protein tangles
Mutation of C9ORF72
Frontotemporal dementia Symptoms
1. Behavioral and personality changes
2. difficulty in social settings
3. Language difficulties (loss of speech)
4. Memory loss like Alzheimer's
Alzheimers treatments
1. memantine(NMDA antagonist that prevent exocitoxicity by calcium)
2. donepezil,Rivastigmine, (aceythcholinerase inhibitor that increases aceythcholine in the brain)
3. Donepezil and memantine is combined to help relieve symptoms in moderate and severe stages
Botulism causes
Toxin cleaves the SNARE protein, preventing the SNARE protein from helping neurotransimitter filled vesicles from expelling NT's in the synaptic cleft
botulism symptoms
Muscle spasms
muscles and face
physical and biological cause of Chronic traumatic encephalopathy
Neurodegenerative condition from repeated head injuries.(prevelant in atheletes)
causes a build up of abnormal proteins
Huntingtons disease cause
Genetic mutation on chromosome 4
The more copies of the CAG nucleotide, the more likely chance of developing huntingtons disease
Huntingtons disease
Invounluntary jerky movements(chorea)
dementia(loss of memory and judgement)
Dance like walk
Personality changes
Parkinsons disease causes
Death of dopamine creating area of the brain(substantia nigra)
Could be due to a prevalence of lewy bodies forming in neurons which are alpha synuclein proteins which kills dopamine creating neurons
could be a genetic mutation in LRRK2 gene
parkinsons disease symptoms
resting tremor
masked facial expressions
bradykinesis(slow movements)
rigid muscles
dystonia( postural instability/abnormality)
multiple sclerosis biological cause
Inflammation of neurons which causes the myelin sheath to get damaged
Body attacks itself
multiple sclerosis symptoms
bladder control issues
tingling, numbness
vision loss or eye pain
muscle weakness
myasthenia gravis biological cause
autoimmune response that attacks and destroys the aceytcholine receptors
myasthenia gravis symptoms
vision issues(drooping eyelids and double vision)
muscle weakness that gets better with rest
throat muscle weakness issues( speaking and swallowing issues)
wernickes encenthalopy symptoms
confusion
muscle ataxia(coordination issues)
rapid saccades or paralysis of saccades
wernickes encenthalopy causes
b12(thiame) deficiency
Amyotrophic lateral sclerosis symptoms
muscle atropy and weakness that eventually leads to paralysis
muscle fasciulations(muscle twitches)
no sensory or cognitive issues
tourette syndrome
TICS( involuntary movements)
Can prevent tics for a short period of time
chronic traumatic encephalopathy symptoms
memory loss, confusion, impaired judgment, impulse control problems, aggression
post traumatic epilepsy cause
caused by traumatic brain injuries