brain disorders-review

brain disorders-review - Brain Disorders Review...

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Brain Disorders Review
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Announcements Please do evaluations Don’t forget Extra Credit Final Exam Cumulative Thurs., Dec 9; 8 – 10 am Bring scantron, pencil Bring I.D.
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Overview of the brain Neuroanatomy and terms Ways the brain can be damaged Assessment of the patient
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Lectures 1, 2 & 3 Neuroanatomy: Axes of the brain Imaging views Meningeal layers Surface structures Neurons Anatomy for the damaged brain: Pathway for cerebrospinal fluid (CSF) Blood flow to the brain Structural changes to cortex
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Human Brain: Surface Key Terms: Ridge = Gyrus Valley = Sulcus Surface covering = Cortical sheet Actually a folded sheet Has a surface area of ~2.5 square feet
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Axes of the Brain dorsal ventral rostral caudal superior inferior anterior posterior d o r s a l v e n t rostral caudal These axes rotate 90 deg in the brain stem and spinal cord.
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Slice Orientations axial sagittal coronal
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Major Lobes and Sulci Lateral fissure
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Meningeal layers Skull Dura Arachnoid Pia
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Neuron Summary Neurons are designed to receive input, summate, and send output. This occurs through changes in electrical potential across the cell membrane. There are local modulations of potential, and large, spiking modulation Local modulations reflect input and summation Action potentials reflect output The changes are propagated rapidly across neurons
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CSF Flow (starts in) Choroid Plexus Ventricular system Lumbar Puncture Arachnoid granulations
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Problems with CSF Flow Congenital or acquired Communicating or Non-communicating Treated with a shunt vs. Hydrocephalus ex vacuo ( cortical atrophy) Hydrocephalus
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Arteries to the brain Circle of Willis Anterior view Carotid Artery Middle Cerebral Artery Anterior Cerebral Artery Vertebral Artery
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Problems with blood flow Lack of blood flow to the brain = Stroke Symptoms: Evolving loss of function Depends on region of brain affected Ischemic vs. Hemorrhagic Mini stroke = Transient ischemic attack ( TIA ) Same symptoms as stroke, but temporary
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Trauma to Cortex Traumatic brain injury Diffuse shearing injury Penetrating injury
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Lectures 3 & 4 Neuroassessment Neuroimaging Was that a good ‘Hmmmm’ or a bad ‘Hmmmm’?
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Anatomy for the damaged brain… Structural changes to cortex Trauma Infection Tumor Developmental (autism) Neurodegeneration (Alzheimers, dementia)
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How do we assess a patient?
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This note was uploaded on 02/13/2012 for the course PSYCHOLOGY UD taught by Professor Brewer during the Fall '10 term at UC Irvine.

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brain disorders-review - Brain Disorders Review...

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