CAS BI 325 Midterm: Condensed exam 1 study guide with practice questions
13 Mar 2018
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Chapters 1 and 2 (lectures 1-2: brain was hard to study: lack of technology and delay in recognizing importance, function assigned based on current technology: Romans: cerebellum = hard = motor and cerebrum = soft = sensation. Nerves as wires ben franklin: electricity. Phrenology = wrongly studying skull structure, but at least attempted to infer function based on observed physical structure: gyri: bumps; sulci: valleys ( sulk in ) >cognitive (self-awareness, language: histology, nissyl stain: nuclei+rer (only soma), violet stain in cortex (grey matter, golgi stain: black reaction; agcr stain; shows high intertwining. Reticular theory: ram n y cajal: disproved reticular theory; neurons communicate via contact; adhered to cell theory , electron microscope further supported neuron doctrine. Neuron doctrine: how the neuron is different: 1. neurites and 2. electrochemical properties, neuroscience still relies on basic theories, gene expression: central dogma therefore, rer; single gene capable of several mrnas (alternative splicing) (dna=transcription=>mrna=translation=>protein) Rer: proteins to be transported out/membrane proteins.
