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Unformatted text preview: Mammal Brain:- Cerebrum contols intelligence. The more complex the vertebrate, the larger its cerebrum. - infoldings in mammals create more space as more instincts evolved, like nurturing Frog Brain:- Nasal pits at anterior end of brain- Olfactory nerve leave nasal pits and connect to anterior the olfactory lobes- Cerebrum is frogs thinking center- helps frog respond to its environment- Optic lobes are posterior to cerebrum, functioning in vision- Cerebellum is ridge behind the optic lobes and coordinates the fros muscles and helps maintain balance.- Medulla oblongata connects brain to spinal cord posterior to cerebellum, and controls respiration rate and heart rate- Do not have neocortex. Multi layer structure is unique to mammals Alligator Brain:- getting early evolution was reptile, retained in humans and mammals as the center of our instincts and survivial instincts- responsible for involuntary processes like respiration, heart beating, etc.- 3 major compartments: front for smell, middle for vision, rear for balance and coordination- all brains based on reptilian brain, including mammal- original brain was three parts-> became 5 parts and sight function concentrated in cerebral...
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This note was uploaded on 02/25/2012 for the course BIO 1421 taught by Professor Farr during the Fall '08 term at Texas State.
- Fall '08