PC1001 Lecture Notes - Lecture 14: Skeletal Muscle, Cardiac Muscle, Smooth Muscle Tissue

93 views28 pages
16 Jul 2018
Department
Course

Document Summary

In order to contract, a skeletal muscle must: Linking the electrical signal to the contraction is excitation-contraction. What skeletal muscles (can) do: ion. ction coupling. The region of a myofibril between two successive z discs. Composed of myofilaments made up of contractile proteins. Myofilaments are two types - thick and thin. A muscle fibre is made up of millions of sarcomeres connected in series eries. Myofibrils are built of 3 kinds of protein. Regulatory proteins which contraction on and off troponin and tropom. Structural proteins which provide proper alignment, elasticity and exte myomesin, nebulun, alpha actinin and dystrophin. Tails - two interw pomyosin. extensibility - titin, the protein myosin. Z disc by titin. ail and two globular terwoven, heavy n act. Heads - two small chains - form cros. An important feature of the myosin head which is essential to muscle contraction s that it functions as an atpase enzyme.

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