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78 Cards in this Set

  • Front
  • Back
Dendrites
Receive and carry impulses to the cell body
Cell Body
Generates electrical impulses
Axons
Carry electrical impulses to the dendrites of another neuron using neurotransmitters
Frontal lobe
Regulates emotional expression, behavior and intellect, controls voluntary movement
Broca's area
expressive language function
Temporal
influences hearing, smell, taste and memory
Wernicke's area
language comprehension
Limbic system
emotional and sexual arousal, behavioral expression, recent memory, and smell
Parietal
perceives and interprets sensory input such as pain, temperature, touch, texture and proprioception
Insula (central lobe)
Involved in GI and viscera activity
Occipital
perceives and interprets visual stimuli, including spatial relationships
Diencephalon
connects cerebrum to brainstem
thalamus
clusters sensory stimuli and filters out unimportant stimuli
hypothalamus
controls and integrates autonomic nervous system and pituitary activity
cerebellum
located at the base of the brain, regulates involuntary aspects of movement, coordination, muscle tone, posture, equilibrium and kinesthetics
brainstem
involuntary survival, includes midbrain, medulla and pons, transmits impulses from the spinal cord and brain, attachment site of 10 of the 12 cranial nerves
Dura mater (outer layer)
Adds support and protection
Arachnoid (middle layer)
Provides space for cerebrospinal fluid
Pia Mater (inner layer)
Contains blood vessels
Sensory pathways
ascending. Medulla - L12
Afferent
Motor pathways
Descending, Efferent
Lateral Corticospinal
Movement of extremities, fine finger movement
Anterior corticospinal
Voluntary movement of axial muscles
Corticobulbar
cranial nerves
Rubrospinal
Coordination and control of skilled muscle movement
Reticulospinal
integration of axial body movements, posture, body and limb movements
vestibulospinal
body posture, body and limb movements
Spinal reflexes
Not dependent on conscious perception bc they don't involve the brain. deep tendon and flexor
Spinal and peripheral nerves
31 pairs, ascending and descending fibers, innervates a particular area of the body
Dermatomes
cutaneous innervations of the spinal nerves
Sympathetic (ANS)
fight or flight
Parasympathetic (ANS)
rest and digest
Protective reflexes of newborn
Rooting, sucking, palmar grasp, stepping, moro/startle reflex
Folic acid deficiency in pregnant women
neural tube defects (spina bifida)
African americans
increased HTN and stroke
Irish
Neural tube defects
Navajo
unique neuropathy causes severe neurological symptoms
Symptoms signal a problem with neurologic system
headache, mental status, dizziness, vertigo, syncope, numbness, deficits of the 5 senses
Neurologic exam tests:
mental, cranial nerve function, sensory, reflex, cerebellar
LOC
arousal and orientation
Glasgow coma scale
Predicts how well you'll recover from head injury
Memory
Immediate, recent and remote
Mathematic ability
Count backwards 20-0
Thought processes
Attention span, abstract reasoning, judgment, communication
Mini mental state exam
Orientation, registration, attention and calculation, recall, language
Single cutoff
<24 abnormal
Range
<21 Increased odds of dementia
>25 decreased odds of dementia
Education
21 Abnormal for 8th grade education
<23 Abnormal for high school education
<24 abnormal for college education
Severity
24-30 No cognitive impairment
18-23 Mild cognitive impairment
0-17 severe cognitive impairment
Mnemonic for Mental Status Exam: FROMAJE
Function (physical)
Reasoning
Orientation
Memory
Arithmetic
Judgement
Emotions
LOC: Alert
keen and attentive
LOC: lethargic
Dull and drowsy
LOC: Obtunded
difficult to arouse
LOC: Stuporous
requires vigorous stimulation for a response. May require painful stimulus
LOC: Comatose
Does not respond appropriately to either verbal or painful stimuli
Sensory function checks for:
Superficial, Deep, discriminatory sensations
Superficial sensation
Pain, light touch, temperature
Deep sensation
vibratory, kinesthetics
Discriminatory sensation
Stereognosis, graphesthesia, 2 point discrimination, point localization, sensory extinction
Deep tendon reflexes grading
0 no response
1 response present but diminished
2 normal
3 somewhat stronger than normal
4 hyperactive with clonus
Superficial reflexes
Plantar, abdominal, anal,
Protective reflexes
gag, cough, swallow, blink, corneal
Primitive reflexes
babinski, sucking, grasp, rooting, snout, glabellar
Cerebellar function
Roadside sobriety test, balance, coordination, accuracy of movement
Reticular Activating System (RAS)
Network of hyperexcitable neurons in the brain stem and cerebral cortex
Screens and channels incoming sensory input
Helps maintain consciousness
Hyperactive reflexes:
in later pregnancy may signal preeclampsia.
Older adults:
Creative, critical, and abstract thinking and problem solving abilities are often increased.
Avoid making:
Language barrier or cultural variations in communication for neurological impairment.
What can history tell you about the neurologic/sensory system?
Biographical data
Current health status
Past health history
Family history
ROS
Psychosocial history
Babinski
Stroke lateral sole of foot - dorsiflexion of great toe and fanning of toes.
Sucking
Stimulate lips with swab, client starts sucking.
Grasp
Place fingers in hand - client automatically grasps yours.
Rooting
Gently stroke side of face and client turns face toward stroked side.
Snout
Gently tap oral area and lips pucker
Glabellar
Gently tap client's forehead and client blinks
Balance
Tandem walking or Romberg's test
Coordination
Rapid alternating movements, finger thumb opposition, heel to shin
Accuracy of movement
Point to point localization (finger to nose)