PSYC23H3 Lecture 10: PSYC23 LECTURE 10.docx
Document Summary
Old parts+ new parts = update with newer systems. Older and newer= put together in interesting ways. Some vagal fibres are my lineated and more efficient, they are operated more by the na. Organization is hierarchical, evolution has been adding to this new systems older, primitive species always the one that fails~~~ layered like an onion: peeling each layer off the world. Older vagus is good for digestion and serving for body needs. Emergency brake - done in drowning or freezing --- the older vagus climber"s body shut down on the way up the mountain~ his body went down to a point. Can be adaptive everest - the prof told the true story of how an everest. Na- takes off brake of the new vagus. Have low activation of dmns ( reptiles) --- they don"t have a ns vagus. Mobilization---- the vagus doesn"t do this, it"s the sympathetic ns.
