Psyc4130 1nd Edition Lecture 8 Outline of Last Lecture I. (First notes for new test)Outline of Current Lecture II. Anatomical Planes and DirectionsIII. MeningesIV. Ventricle SystemV. DevelopmentCurrent Lecture Important Terms and Concepts from Carlson Chapter 3- Anatomical Planes and Directions: o Anterior (Rostral)- front of braino Posterior (Caudal)- back o Dorsal-ventral- top (top part of brain in line with spinal cord when on all fours) Ventral- belly parto Medial-lateral- side of braino Mid-sagittal- midline of braino Coronal- slices of breado Horizontal- used on FMRI scans (won’t refer to as much)- Meninges: Inflammation of protection of coting of brain and spinal cordo Dura- leather like, on outsideo Arachnoid- looks like spider webo Pia- up against grey matter of cerebral cortex, thin, barely detectable, right against brain tissueo Subarachnoid space-- Ventricular System: o Lateral, 3rd and 4th ventricles-o CSF (cerebrospinal fluid)- flowing in subarachnoid space and around spinal cord, and in ventricles of the brain Allows dead cells to empty into body, filtering systems Cushion between brain tissue and cranium, buoyancy These notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.o Choroid plexus- type of cell which secretes the CSF, highly vascularized tissue, lines ventricles of brain, (like moss/seaweed), constantly being replenished and dumped back into portal circulation- Development:o Stress-diathesis- different people have different degrees of vulnerability to specific conditions (i.e. genes affect how things get wired in the first place)o Gastrula, Ectoderm (outerlayer) Neurulation (basic building blocks of nervous system, springs forth from the ectoderm, begins 17 days after conception, formation of neural tube) Gastrulation: o Neural tube, spina bifida (cyst on baby’s back, associated with neurulation), folic acid (b12 vitamin)o Neurogenesiso Glial spokes (radial glia- radiate out from middle, serve migration process), o Inside-out development of cerebral cortex-o FAS- fetal alcohol syndrome, causes problems with migrating neuronso Telencephalon- farthest out extent of the brain Cortex and Subcortical Structures- cortex falls into itself and creates the ribs- Gyri, sulci (indented areas/valleys), fissures (deep sulci)- Neocortex (out most part- overall motor behavior)o Frontal Lobe- decision making, PFC (biggest part of frontal lobe), complex planning, helps deal with obstacles and revise the goal, helps keep you motivated, serotonin (helpsto inhibit impulsive behavios). o Two other areas: 1.) precentral gyrus= primary motor cortex, proximal control of volitional behavior (in time rightbefore it happens, willful/voluntary behavior) 2.) Premotorcortex: big picture what your trying to accomplish (i.e. learn to play piano, neurons take care of things automatically, don’t have to think about it) Rest of brain is sensation and perception Postcentral gyrus: somatosensory
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