PNB 2265 Final: practical 2 study guide
11 Sep 2017
School
Department
Course
Professor
Document Summary
1: shortest physiological length: too much overlap, before contraction begins, minimal binding sites, small tension. 2: optimal physiological length: maximum thick and thin filaments overlapping, numerous cross bridges, generate maximum force. Incomplete tetanus: larger tension between each stimulus: complete tetanus: muscle fibers achieve a state of maximum contraction, muscle fatigue: after period of tetanus; conduction failure, lactic acid buildup, inhibition of cross-bridge cycling. 1: twitch (single ap generates a single twitch) Lab 7 objectives: identify different cell types in the cns under the microscope. Purkinje cells in the cerebellum: nernst potential is also called the reversal/equilibrium potential. By its very nature, it is not testable. There are no observations that a scientist can make to tell whether or not the hypothesis is correct. This statement is speculation, not a hypothesis: to know how to read and analyses action potential recording after application of different toxins (postlab slides, a, b, and c are three cations.
