csulb bio 207 lab final 7-12 verified already passed 2024

csulb bio 207 lab final 7-12skeletal muscle - correct answer contracts to generally cause movement bones muscle fiber - correct answer muscle cell muscle fiber - correct answer contain bundles of protein filaments sliding filament model - correct answer actin and myosin filaments do NOT shorten, but instead slide against each other during contraction actin - correct answer thin filament myosin - correct answer thick filament sarcomere - correct answer smallest unit of contraction inside muscle fibers CA++ - correct answer binds to troponin ATP - correct answer binds to myosin twitch - correct answer single short contraction due to single pulse of stimulation stimulation below threshold - correct answer no action potential, no contraction summation - correct answer occurs when an additional pulse of stimulation occurs before the muscle fibers have time to relax tetanus - correct answer the maintenance of sustained muscle contraction fatigue - correct answer contraction strength decreases due to.. motor neuron - correct answer controls multiple muscle fibers motor unit - correct answer single somatic motor neuron and all muscle fibers it controls EMG - correct answer a graph that shows voltage changes occurring in underlying skeletal muscle amplitude - correct answer height of wave graded contractions - correct answer variation in strength of contraction, depends largely on the number of muscle fibers within an entire muscle are contracting recruitment - correct answer increase in the number of motor units that are activated agonist - correct answer primary mover, should be contracted (i.e. biceps in arm flexion) antagonist - correct answer secondary mover, should be relaxed (i.e. triceps in arm flexion) blood - correct answer primarily composed of plasma and formed elements blood - correct answer transports oxygen, nutrients, hormones and wastes. protection via clotting and immune response platelets/thrombocytes - correct answer PROMOTE BLOOD CLOTTING, fragmented cells plasma - correct answer fluid portion of blood, 55% of blood, 90% water, nutrients, ions, hormones, proteins, clotting factors