Chapter 8

Chapter 8 - Chapter 8: The Central Nervous System Anatomy...

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon
Chapter 8: The Central Nervous System Anatomy of the CNS (slide 3) -Seven major divisions of the CNS (top to bottom) -cerebrum (7) -the brain -diencephalon (6) -very interior of the brain (thalamus and hypothalamus) -midbrain (5) -cerebellum (4) -sits behind the brain stem (little brain) -pons (3) - right bellow midbrain -medulla oblongata (2) -spinal cord (1) -brain stem: midbrain, pons, medulla oblongata Anatomy of the Brain (slide 4) -three broad regions of the brain (top to bottom) -forebrain (1) -cerebrum -diencephalon -everything above the midbrain -midbrain (2) -hindbrain (3) -cerebellum -pons -medulla More structures… (slide 4) -forebrain -cerebrum -cerebral cortex - (outer layer of the brain -basal ganglia (basal nuclei) -hippocampus -amygdala -diencephalon -thalamus -hypothalamus -the brain stem -midbrain -pons -medulla Some other terminology (slide 6) -cavities filled with CSF -ventricles (brain) -central canal (spinal cord) -CSF help with maintaining proper environment
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
-gray matter -cerebral cortex -nuclei -white matter -tracts -if in the periphery, called nerves (?) Studying the Intact Brain (slide 8) -single-cell electrohysiological recording -small electrodes measure electrophysiological events across membranes -EEG (electroencelhalograhy) -scalp electrodes -measure populations of neuron activity -imaging techniques -CT )computerized tomography) -PET (positron emission toography) - rainbow color code -MRI (magnetic resonance imaging) -fMRI (functional MRI) I. The Cerebrum (slide 11) -cerebral hemispheres -demarcation that separates the two hemispheres -very similar, but not the same -corpus callosum -giant tract that connects the two sides -higher brain functions -structures -cerebral cortex -convolutions and fissures -gyrus (peak) -sulcus (valley) -four lobes -frontal -parietal -occipital -temporal -text mentions insular lobe as fifth lobe -doesn’t reside on the surface -subcortical regions -basal ganglia -hippocampus -amygdala Anatomy of the Cerebral Cortex (slide 12) -peaks and valleys -peak (gyrus) -precentral gyrus -postcentral gyrus
Background image of page 2
-valley (sulcu) -central sulcus searates frontal and parietal -lateral sulcus separates temporal -longitudinal fissure separates left and right -frontal lobe in the front, parietal next, occipital back, temporal sides -insular lobe underneath the middle of frontal, parietal, and temporal lobes Function of the Cerebral Cortex (slide 13) -frontal lobe/cortex -motor control (voluntary movements, learning and memory, motor planning) -prefrontal cortex -highest cognitive functions -parietal lobe -precentral gyrus (primary motor cortex) -both sides -left hemisphere, primary motor circuits that control right side of the body -receiving and integrating somatic information -temporal lobe -hearing -integrating sensory information together -General interpretive area -close to Warnick’s area -avasia (speech disorder generally based on traumatic events) -site for processing language Homunculus: A Topographical Map (slide 14) -gyrus in front and behind central sulcus -temporal lobe -motor control -parietal lobe -somatasensory information
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 4
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 10/04/2011 for the course VPHY 3100 taught by Professor W during the Fall '05 term at UGA.

Page1 / 11

Chapter 8 - Chapter 8: The Central Nervous System Anatomy...

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online