01:119:116 Lecture Notes - Lecture 21: Flowchart, Myosin Head, Cytosol

31 views6 pages

Document Summary

B. motor output -> mechanical force: muscle tissue generates force in response to nervous system, locomotion, manipulation of environment, blood circulation, feeding, peristalsis. C. 3 types of muscles in vertebrates: 1. ) A. introduction: sometimes called striated muscle. , moves skeleton, attached to bones via tendons, tendons- cords of connective tissue, most abundant tissue in body. D. sliding model of muscle contraction (important: figure 50. 27, figure 50. 28, figure. Message from motor neuron: action potential -> acetylcholine released by neuron across synaptic cleft -> Sarcoplasmic reticulum -> ca2+ is released: sr has high ca2+, ca2+ channels open and enters cytosol, later, ca2+ pump returns ca2+ to sr, 3. ) > add atp to myosin head: 1. ) Myosin is an atpase- splits atp: atp is hydrolyzed -> released energy -> shape change, 2. ) Myosin binds to actin binding site: cross-bridge is formed linking thick and thin, 3. ) Adp and pi released: myosin returns to low energy state and pulls thin filament to center of sacromere: power stroke, 4. )

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related Documents

Related Questions