Neuro- Test 3 Flashcards
Neuroglial cells
Numerous
Supportive
Replicate
Nourish
Dendrites
Receiver
Axon
Terminal
Barbiturates and Benzos
Increased GABA
ETOH seizures
Anxiety
Dopaminergic drugs
Increase dopamine
Parkinson’s
Forebrain parts
Cerebrum
Cerebral cortex
Cerebrum does this
Intelligence
Creativity
Memory
Basal ganglia
Where and what it does
Base of cerebrum
Controls movement
Cerebral cortex
What it does
Sensory input
Voluntary muscle
Memory and reasoning
Cerebral cortex subdivided into four lobes
Frontal
Parietal
Temporal
Occipital
Frontal lobe responsibilities
Primary motor area
Broca’s speech
Judgement
Reasoning, concentration,, abstraction
Parietal responsibilities
Sensory-
Sensation, texture, size, shape, spatial relationship
Singing, musical instrument, nonverbals
Meninges layers
Outside to inside
Dura matter Subdural space Arachnoid Sub arachnoid Pia matter
Layer when CSF circulates
Subarchanoid space
Temporal lobe responsibilities
Auditory
Memory
Wernicke’s language
Forebrain:diencephalon parts
Thalamus
Hypothalamus
Thalamus responsibilities
Pain awareness
Consciousness
Attention
Emotions
Hypothalamus responsibilities
Temperature BP Hr Peristalsis Emotional expression Intellectual function
Which area is the central switchboard for CNS? It sorts and directs sensory information
Thalamus
Pons responsibilities
HR
Rate, strength
Medulla responsibilities
Respiratory center
Cerebellum responsibilities
Coordination
Muscle movement
Balance/equilibrium
Brain facts
2% body weight
15% of cardiac output
25% O2 consumption
Spinal cord responsibilities
Regulates reflexes
Controls body movement
Regulates organ function
Processes sensory information
Somatic control
Conscious control
Sympathetic system
To the pupils
Dilated
Parasympathetic pupils
Constricts
Normals for aging
Decrease Response time Reflex Pupil Touch sensation Vibration Hearing
CT
Bone:soft tissue
MRI
Better, evaluate blood flow
PET
Brain function Glucose Blood flow O2 Metabolism of brain
Evoked potential
Measures electrical signals generated by hearing touch or sight
Lumbar puncture with CSF analysis
Contraindicated with increased ICP
CSF volume
Less than 30 mL
Clarity of CSF
Clear, colorless
CSF RBC WBC
None
CSF protein?
15-45
CSF glucose
50-70