Neuro Concept Flashcards
(44 cards)
Base Vs High Neuron Function
- Base or minimal neuron function is to tested w/ “Simple Commands”
- High Neuron function is tested w/ “Complex Commands”
Simple Command Vs. Complex
- Simple commands do not cross any cortex
- Opening eyes is a “Simple Command” - Complex Commands cross cortex
- Squeeze my right hand is a “complex command”
Symmetry in Neuro
- If anything happens on one side it should happen on the other side
- Asymmetry usually shows a problem
Frontal Lobe
- “Mom” - Tells you what to do and “no”
- Alcohol at .05 causes loss of inhibition in frontal lobe
- Personality (Both learned and genetic)
Frontal Lobe
-If Injury occurs
- Inappropriate behavior
2. May walk down the street naked not knowing its wrong
Frontal Lobe
-Dementia
- Pts w/ Dementia lose their frontal lobe when the brain shrinks so the brain can preserve the survival parts of the brain
- This causes a loss of inhibition and filter in dementia patients
Frontal Lobes
-Contralateral Control
- The Right pre-central gyrus controls the left side
2. The left pre-central gyrus controls the right side
Frontal Lobes
-Pre-Central Gyrus Neurons
- The neurons located in the pre-central gyrus are known as upper motor neurons
Temporal Lobe
-Wernicke’s Area
- Reception and interpretation of speech
- Ex: Do you understand what I am telling you
Temporal Lobe
-Wernicke’s Aphasia
- Im going to the kredistan to get a prebble.. want one?
- Person talks but it comes out not making any sense
Temporal Lobe
-Jargon Aphasia
- “Ca, ca, ca, ca CAH
2. Stuttering
Temporal Lobe
-Superior Temporal Gyrus
- Interprets what you are hearing ( Higher cortical Function
- Tested by:
- Coins jingling in your pocket
- Clicking a pen
Temporal Lobe
-Loss of Smell or Inhibition Could Mean?
- A meningioma displacing olfactory nerve (CN1) could cause:
- Loss of smell - If there is loss of inhibition the area affected could be the baso-orbital frontal lobe)
Temporal Lobe
-Jamais Vu
- Familiar place becomes totally unfamiliar
Illusions
- Distortion of an ongoing stimuli (Something is there)
Hallucinations
- Seeing or hearing something that is NOT there
Temporal Lobe
-Injury Manifestations?
- Where are you? helps assess injury to temporal lobe
- Inability to interpret sounds & speech
- Convoluted speech. Makes sense to person but comes out crazy
Temporal Lobe
-4 F’s
- Self-Preservation and preservation of species “ANS”
- Fight or Flight
- Feeding & Fertility
Temporal Lobe
-Sexual Function (Dopamine)
- Dopamine plays major part in pleasure centers and sexual function
- SSRI’s increase serotonin which is inversely related to dopamine
- Pt may have low levels of Dopamine decreasing sexual function & pleasure
Parietal Lobe
-Proprioception
- Knowing where you are in space even with eyes closed.
- Proprioception is learned and developed - “LEARNED”
- Babies learn that their mom will return even when she disappears from view
Parietal Lobe
-Double Stimuli
- Injury to parietal lobe will cause someone to only feel one stimuli even if 2 are present at the same time
Parietal Lobe
-Children and Body Neglect
- Kids will always neglect their body and will recognize touch on the face
- DON”T start assessment with head of face. Start with body
Parietal Lobe
-Neglect Syndrome in Adults
- Someone with Right sided parietal lobe damage will neglect the left side of their body and not recognize it as self. It will be a foreign object.
Parietal Lobe
-Graphesthesia
- Ability to recognize numbers when written on the palm of the hand.
- Tattoos may give a false negative