Neuro Concept Flashcards
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