KINE 1020 Study Guide - Endoplasmic Reticulum, Troponin C, Intermediate Filament

61 views9 pages

Document Summary

Contract if want: 600 skeletal muscles. 40-50% of total body weight: functions. Cardiac muscle: striated, controlled by autonomic nervous system, electrically coupled cells interconnected. 1 cell stimulated it can stimulated one beside it. Smooth muscle: non striated, responsible for blood vessel tone (vasoconstriction/vasodilation) Muscle is composed number of fasciculi that are bundled together. Within fasciculi there are muscle fibres (cells: contains striation areas alignment of proteins held together. Muscle fibres are made up myofibrils (contraction units: contain contractile proteins that generate force and are numerous. Med gastrocnemius 1,033,000 fibres lumbar 10, 250 fibres. Composed of many cell types muscle, vascular, satellite fasciculi. Bundles of muscle cells number in 10s: muscle cell (fiber) Elongated structure 80% myofibrils, multi nucleated: myofibrils. 2,500 - 5000 running along length of cell. Myofibrils can be broken down into sarcomeres (basic contractile unit) action happening/tension produced: 5000 10,000, one z line left and one z line on the right.

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

Related Documents