Neurological Conditions Flashcards
Human brain
Cerebrum
Diencephalon
Brainstem
Cerebellum
Brainstemo
Midbrain (ANS), pons, medulla oblongata
Hypothalamus
Homeostasis
Cerebral cortex
80% of brain
Front lobe-executive function, emotional control
Parietal lobe-sensation
Occipital lobe- vision
Temporal lobe-language, hearing
Fissures/sulci
Medial longitudinal fissure: separates hemispheres
Central sylvia fissure: b/n parietal/frontal and temporal
Sulcus: b/n frontal/parietal lobe
Postcentral gyrus in frontal lobe/ primary motor area
Frontal lobe
Personality, behavior, emotion, judgment, planning, problem-solving, Broca’s area (expressive speech), writing, motor strip (movement), intelligence, self awareness, concentration, STM, motor planning
Parietal lobe
Interprets language, words, sense of touch, pain (sensory strip), interprets signal from vision, hearing, motor, and sensory, memory, visuospatial perception (primary sense area)
Occipital lobe
Interprets vision, visual stimuli from optic pathways
Temporal lobe
long term memory, hearing, understanding language (wernicke’s area, receptive), sequencing/organization
Limbic lobe
Emotion and autonomic system
Insula lobe
Gustation, taste, visceral organ sensation, empathy, and self aaare essential
Hypothalamus
Autonomic system, controls hunger, sleep, thirst, secretion of hormones, and sexual response
Pituitary gland
Master gland, endocrine system
Pineal gland
Internal clock, circadian rhythms some role in sexual development
Thalamus
Relay station for all info, plays a role in pain, attention, alertness, memory
Basal ganglia
Caudate and putament glubos, pallidus
Emotional reaction and memory
L hemisphere
Communication, Broca’s/Wernicke’s area
R hemisphere
Attention, concentration, memory, problem solving
Unilateral in attention R parietal
Cerebral arteries
Anterior cerebral artery: medial air face if frontal/parietal lobee
middle Cerebral artery: lateral surface of frontal/parietal lobe, superior temporal, Deep internal capsule and basal nuclei
Posterior Cerebral Artery
Inferior temporal lobe and occipital lobe
Cranial nerves in brainstem
Most originate in brainstem
Midbrain: Oculomotor CN3, Trochlear CN4, trigeminal CN5
Pons: abducen CN6, facial CN7
Medulla oblongata: vagus cn10, hypoglossal CN 12
Cranial nerves
1)olfactory: smell
2) optic: vision
3)oculomotor: eye movement/pupil
4) trochlear: eye movement
5) trigeminal: somatosensory of face, muscles for chewing
6) abducens: eye movement
7) facial: taste of anterior 2/3 of tongue, somatosensory from ear muscles for facial expressions
8)vestibulocochlear: hearing/balance
9) glossopharyngeal: taste of posterior 2/3 of tongue, tonsil, tongue, pharynx, controls some muscle in swallowing
10)vagus: glands, digestion, HR, autonomic
11) spinal accessory nerve: muscles in head movement
12) hypoglossal: muscle of tongues
Cerebellum
Inferior to cerebrum, posterior to brainstem, superior/inferior cerebral peduncles carry fibers from major spinal tracts cerebrum to spinal cord
Pons
Relay center between spinal cord, cerebrum, cerebellum
Midbrain
Autonomic nervous system, reflexive vision, hearing, motor control, level of alertness, body temp control, sleep/wake cycles
Medulla
Sends motor messages from cerebrum to spinal cord, heart rate, BO, rate of breathing, vomiting, coughing, swallowing, sneezinf
Spinal cord anatomt
Begins at foramen magnum, conus medullaris
Ascending tracts (sensory), dorsal horn
Descending tracts (motor), ventral horn
31 pairs of spinal nerve: 8 cervical, 12 thoracic, 5 lumbar, 5 sacral, coccygeal
Cervical= hand
Thoracic= hand, abdominal, chest muscles
Lumbar=ankle, hip, knee
Sacral= bowel, bladder, reproductive organs
Age-related neurological changes
Decrease processing soeed
Difficulty attending to more than 1 stimuli, alternating/divided attention
Decreased working memory depended on cog load
Procedural memory increase, difficulty using new method with familiar task
Increase difficulty with age conscious awareness of environment
Less efficient problem solving
Decreased fluid increased crystalized
Long term memory
Declarative and procedural memory
Declarative memory
Verbal based memory
Episodic: memory of every day events (better in young age)
Semantic: long term of words, #s, concepts (better in older age)
Procedural memory
Nonverbal memory, how to do a task, stores information regarding motor skills and behaviors
Prospective memory
Decreased external cues increase complex cognitive process = difficulty with age
Remembering future appointments and planned actions
Working memory
Rehearsal occurs and info is manipulated for saving in LTM
Fluid intelligence vs crystallized
Fluid = Abstract concepts
Crystallized = general knowledfe
Working memory strategies
Organizing/repeating stimuli in STM to transfer to LTM, increased age =increased difficulty with tasks with increased cognitive load
Make checklist/note talking, be aware of pt’s capacity
Procedural memory strategies
More difficult to access with increased cognitive load, such as finding way to MDs office
Decrease cognitive load such as using a navigation system
Prospective memory strategies
Reminders such as calendars, recordings, or 2nd person to remind
Executive functioning strategies
Increase time
CVA
Interruption of blood flow to the brain, impacting brain function
Ischemic: obstructed blood vessel secondary to embolism, thrombus, dissection
Hemorrhagic: bleed into the brain from ruptured blood vessel, ICH in brain/SAH around brain
TIA
Resembles stroke with symptoms no longer than 24 hours
Embolic stroke
Type of ischemic stroke, abrupt onset from embolism forming in a cardiac region or other arterial sources outside the brain
L brain lesion impairmenrs
R side paralysis
Speech and language
Slow/cautious behavioral style
Memory loss
R brain lesion impairment
L side paralysis
Vision impacted
Memory loss
Quick inquisitive behavioral
Style
Anosognosia
Denial/unaware of neurological deficits
Agraphia/dysgraphia
Inability/impaired ability to write
Acalculia/dyscalculia
Inability/impaired ability to perform simple math before stroke dx
Apraxia
Inability/impaired ability to perform skilled movements as desired
Dysarthria
Speech disorder from weakness, paralysis, or incoordination of muscles involved in sound production of speech
Aphasia
Language disorder that results from damage to language center of brain
Expressive
Receptive
Global
Broca injury
Labored speech/problems initiating speech, nonfluent/expressive aphasia
Increased time to speak and periods of silence
MCA
Often pairs with R paralysis
Wernicke’s aphasia
Receptive aphasia, fluent aphasia, do not typically present with R paralysis
May show visual deficits, difficulty comprehending spoken language
use gestures and familiar words, face individual, speak at a slower cadence, context
Contralateral homonymous hemianopsia
Ocular condition where vision is lost in the same field halves if both eyes to the ocular nerve lathway
Neglect spatial inattention
Result of damage to R side of brain
Eye movement disorder
Occurs due to nerves/muscles that become damaged resulting in nystagmus, strabismus, diplopia, oculomotor dysfunction
Assessing chronic stroke
COPM
Fugl-Meyer Assessment of Motor Recovery FMA
Modified Ashworth Scale MMAs
Fugl-Meyer Assessment of Motor Recovery FMA
Based on brunnstrom recovery levels, UE/LE section, completion of both more than 1 hour point scale
Severity of limb impairment
Modified Ashworth Scale
Removes 1+ grade and modified grade 2 from original scale, marked increased tone by catch in middle range and resistance in remainder of ROM, but easily moved
Managing spasticity
Strong evidence for dry needling to reducing spasticity and increasing ROM
Low level evidence for static/dynamic splinting in UE
No evidence for manual stretching in UE, moderate evidence for splinting/stretching in the hand
Motor retraining:NMES
No effect of motor ability, positive effect for improved ADLs
CIMT
Time consuming, 90 minute protocol, increased use of limb during ADLs
Mirror Therapy
Effective in acute/chronic strategies
Moderate evidence for increased motor/sensation, 1-8 weeks home MT improved arm/hand function, 6 week, 2days OT/30 min home MT
X5 days, unilateral training more official
Occupational therapy task-oriented approach OT-TOA
Function based for persons with a stroke based on motor behavior/motor learning/control/concepts, top down approach, focuses of roles/occupational performance
Practice in natural environment beyond sessions leads to increased paretic UE use, performance, and satisfaction
Task specific training
Use affected UE to complete various tasks for brain to relearn skill
Visual intervention
Visual scanning activities
Balance technique
Spatial awareness
Prisms: change perception by changing direction of light, relaxation, breathing techniques
Pt/ caregiver education as neuro intervention
Moderate to strong evidence for effectiveness
Caregiver experiences negative emotion, employment, finance and physical health=strong evident for CBT and problem solving
Moderate for multimodal ADL training, counseling, community resources, education, and relaxation techniques
Moderate evidence for in hime training and remote training
Inpatient visit strong evidence
Neuro intervention: community reintegration
Return to participation in desired meaningful IADLs, life roles, and community interests, community based care programs
Leisure in neurological conditions
Complicated by types of activities available, individual, stage of life, social/cultural environments, leisure role, satisfaction and use of time
Attend and treat use of time to avoid social isolation