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NFPT Ch.3

Skelatal Muscle Structure and Function

QuestionAnswer
What is the Epimysium? An elastic, connective, fibrous tissue surrounding an ENTIRE muscle group or motor unit.
What is the Perimysium? A connective tissue surrounding a BUNDLE of muscles or motor unit.
What is the Endomysium? A connective tissue surrounding EACH muscle cell fiber.
True or False. You can shape a muscle with proper exercises. FALSE. Muscle shape is genetically predetermined and cannot be shaped. Yes a muscle will and can get bigger, but shaping is not possible.
A person with a predominance of White Fast Twitch motor units would be best suited for events including.. Speed and Strength.
A person with a predominance of Red Fast Twitch motor units would be best suited for events including.. Stamina.
A person with a predominance of Red Slow Twitch motor units would be best suited for events including.. Endurance.
You are training in the 20-25 rep range. You start feeling lactic acid building up and your muscles are fatiguing.. What is the order of recruitment of the 3 motor units? Red Slow Twitch, Red Fast Twitch, and White Fast Twitch. (Depleting Energy Recruitment)
What Motor Unit has the greatest potential for growth? White Fast Twitch Motor Units.
The instant involvement of varying motor units is called.. Immediate Recruitment.
Contractile Speed Recruitment is.. Based on the speed of contraction. A maximum contraction against a sub-maximal resistance will in theory, call on the red and white fast twitch motor units.
True or False. Strict isolation of a muscle is an anatomical impossibility. True. Muscles work in teams. NEVER alone!
Why is a cell impermeable during a contraction? ...
Created by: laceymp