DIAG 2740 MASTER Class Notes - Clinical Case Studies and Outlines

DIAG 2740 MASTER Class Notes - Clinical Case Studies and Outlines

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Test 1: Chapter 2: Neurological Diagnosis Neuroglia Location Function Astrocytes CNS BBB wrap around nerve cells to support CNS attach neurons to blood vessels N.T recycling scar tissue Oligodendrocytes Produce myelin around axons of neurons in the CNS Schwann Cells PNS myelin around PNS f repair (Neurolemmocytes) Satellite Cells Support ganglia neurons in PNS Microglia Macrophages Ependymal Cells Epithelial layer lines ventricles of brain lines central canal of spinal column manufactures CSF Type Neuron Location Function Unipolar DRG Sensory Neurons Visceral and somatic receptors Bipolar Special Senses Special Sense Multipolar Most CNS motor neurons Somatic NS Autonomic NS
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2 Function of: Myelin o Lines axons o Lipid layer o Insulation = speed o White color Nodes of Ranvier o Voltage-gated ion channels concentrated in short exposed segments of the axon o Conduction from node to node = rapid = called salutatory conduction Dendrites o Conduct impulses to the cell body Axons o Conduct impulses away from the cell body Neuron Cell Body (perikaryon) o Has well defined nucleus location of: Gray Matter = cell bodies = unmyelinated White = axons = myelinated oligodendrocytes - CNS Schwann cells - PNS Conus Medullaris = situated at the end of the spinal cord at L2 Sympathetic Nervous System = Tl to L2 (thoracolumbar) Parasympathetic Nervous System = Cranial Nerves (III, VII, IX, X) + sacral nerves (craniosacral) Cerebral Cortex lobes Frontal Parietal Temporal Occipital Fissure of Rolando = from the anterior up to the central sulcus = between the frontal and occipital lobes = separated by the lateral fissure (sylvian fissure) from the frontal lobe = most inferior and posterior = central sulcus
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3 Fissure of Sylvius = separates frontal and temporal lobes Parieto-Occipital Fissure = seen on the medial view = separates parietal and occipital lobes medially Motor Areas Pre-central Gyrus = in the frontal lobe Primary motor Secondary motor - tells the muscle to contract - pre-motor cortex - to think about the movement - planning the Motion Other motor areas in the frontal lobe: Broca's area Sensory Areas - motor language - sign language - anterior to the pre-motor Post Central Gyrus = Conscious sensation Primary Sensory - post central gyrus of parietal - tells where stimulus is located Secondary Sensory - tells what sensory (temperature, vibration) Tertiary sensory. - how you feel about it Heschl's Gyrus - primary auditory Wernicke's Area - sensory language - understanding written and spoken language Primary Visual Area - what you seeing (17) Secondary Visual Area - recognition (18) Tertiary Visual Area - remembering what something looks like not in the room (19) Other areas: Internal Capsule Corpus Callosum - where the motor descends through and the sensory ascends through - connects L & R hemispheres
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Basal Ganglia Limbic System 4 - stimulates and inhibits movement - emotion and mood Medial micturition center - voluntary bowel and bladder Cerebellum - Hind brain - Deals with smooth, coordinated movements = unconscious Vermis - relates to the trunk of your body - most affected by drugs and alcohol
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This note was uploaded on 11/23/2011 for the course DIAG 2740 taught by Professor Markamos during the Winter '11 term at Life Chiropractic College West.

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DIAG 2740 MASTER Class Notes - Clinical Case Studies and Outlines

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