Kinesiology 2230A/B Lecture Notes - Lecture 1: Calcium Atpase, Adrenal Gland, Cellular Respiration

• School: Western University
• Department: Kinesiology
• Course: Kinesiology 2230A/B
• Professor: Glen Belfry

Document Summary

Skeletal muscle: voluntary muscle (conscious control, may also be stimulated involuntary (i. e. shivering, muscle fibers are a single cell made up of myofibrils, 3 types of fibers: Fast twitch a (fta) or type iia. Faster contraction/relaxation times, provide us with aerobic atp (oxidative and glycolytic phosphorylation) Fast twitch b (ftb) or type iib. Type iix fibers are actually more commonly found in humans, where are type iib fibers are more commonly found in other mammals. Type iib fibers have very limited aerobic capacity. Type iix fibers have some oxidative (aerobic) capacity. Fastest contracting fibers, atp-pcr or anaerobic glycolysis. Cardiac muscle: controls itself with assistance from the nervous and endocrine system (adrenal gland ep and nor ep, only in the heart, no specific origin and insertion attachments to adjacent myocytes. Smooth muscle: involuntary muscle (unconscious control, located in the walls of blood vessels and internal organs. Connective tissue enables transfer of force within muscle when length of fibers changes.