BIO 3303 Lecture Notes - Lecture 13: Corpus Callosum, Osteichthyes, Cerebrum
15 Mar 2018
School
Department
Course
Professor
Document Summary
Eg in mammals, small midbrain but large forebrain. Bony fish and birds, large midbrain and cerebellum. Endocast, inside skull part that you can figure out the brain from. Correlation but doesn"t mean much, elephants have huge brains but whatever. Instead look at how high they are per body weight. Mammals have larger brains than fish per body weight. The right side can perceive the ring but cannot say it. With picking it up, perceptive way, they will find what they are looking for. But speaking, can only speak what they right side saw. More sa, more functional complexity of forebrain (intelligence. Eg sea lion brain has much more sulci (groove) and gyri(fold) # of sensory neurons present in particular body part. Sensory homunculi to scale the portion of body to amount of sensory input from there. Can show density of neurons on the brain. Cns is brain, pns, peripheral is how to get the signal out.
