Lecture 1 Flashcards
views of ancient egypt
the heart is the seat of the soul, not the head. the brain was removed during mummification
views of ancient greece
correlation between structure and function
theories of bodily humours
-blood (warm humour) –> heart; jovial and warm character
-pituiary (lymph, phlegm) –> brain; stolid character
-yellow bile –> liver; anxious character
-black bile (black bile, cold and dry) –> spleen; melancolic character
the personality shifts based on the balance of these liquids
views of the roman empire
-dissections of human cadavers were forbidden
-explored the roles of the brain, cerebellum, and ventricles
-cerebrum is soft –> sensations
-cerebellum is hard –> controls muscles
views of the renaissance
fluid-mechanical theory of brain function (animal spirits moved in the ventricles)
-i think therefore i am
views of the XVIth and XVIIth centuries
-description of nerves
-discarding spirit animals theories (nerves are not tubes)
-distinction between gray and white matter. white matter is in continuity with nerves. therefore, white matter contains fibers that shuttles information to or from the gray matter
views of the renaissance to the XIXth century
anatomical description of gyri, sulci, and fissures
therefore, we went from a bipartite brain (galen) to the XIXth century when the brain was thought of as being composed of 5 parts
views of the XIXth century
-central divisions: central nervous system (CNC)
-peripheral divisions: peripheral nervous system (PNS)
Central nervous system
brain and spinal cord
peripheral nervous system
cranial nerves and spinal nerves
views of the XIXth century: electric transmission
-nerves are capable of transmitting electricity
-the nervous system can generate electricity
views of the XIXth century: localization of function
-which parts of the brain are involved with motor function? sensory function?
-bumps on the surface of skull reflect brain surface and related personality traits
-motor areas
-visual areas
evolution of the nervous system
-natural selection
-diverse species have a common ancestor (nervous systems of different species may share common mechanisms)
-rationale for “animal models”
levels of analysis
molecular
cellular
systems (or network)
behavioural
cognitive