HK 100

Exam 1 - HK Questions and Answers

HK 100 Chapter 16 Exam Questions and Answers

HK 100 Exam 1 Questions and Answers 2024/2025

HK 100 Exam 2 Questions and Answers

HK 100 Exam 1 False - Answer- A motor unit consists of a muscle fiber and all the nerve fibers that innervate it (True/false) False - Answer- Skeletal muscle fibers are composed primarily of thick actin and thin myosin proteins (true/false) true - Answer- Concentric contractions involve muscle shortening (true/false) true - Answer- When a muscle fiber contracts, the myosin filaments connect onto the actin filaments and pull the actin toward the middle of the myosin (true/false) ec...

Exam 1 - HK 100 motor unit - Answer- A motor neuron and all of the nerve and muscle fibers it innervates; controls muscle fibers within a muscle sacromere - Answer- Basic contracting unit of muscle cell consists of actin and myosin filaments between z-lines in a muscle cell delayed onset muscle soreness - Answer- Pain or discomfort often felt 24 to 72 hours after intense exercise or unaccustomed physical activity (DOMS) concentric - Answer- when muscle fibers are shortening (Ceiling)...

motor development - ANS-progressive change in motor behavior throughout the lifespan name some examples of knowledge gained by motor development research - ANS-1. normal rate and sequence of development of fundamental motor skills (when a child would start standing and walking) 2. individual difference in rate of development of skills (it's not the end of the world if someone doesn't meet these requirements) 3. deviations from normal development in special populations (down syndrome, et...

motor unit - ANS-A motor neuron and all of the nerve and muscle fibers it innervates; controls muscle fibers within a muscle sacromere - ANS-Basic contracting unit of muscle cell consists of actin and myosin filaments between z-lines in a muscle cell delayed onset muscle soreness - ANS-Pain or discomfort often felt 24 to 72 hours after intense exercise or unaccustomed physical activity (DOMS) concentric - ANS-when muscle fibers are shortening (Ceiling)(flexion) eccentric - ANS-when m...

thin filaments have - ANS-actin thick filaments have - ANS-myosin sliding filament hypothesis - ANS-overlapping areas slide toward each other in a muscle fiber cross-bridge hypothesis - ANS-myosin connects to binding sites / calcium released concentric contraction - ANS-muscle shortens eccentric contraction - ANS-muscle lengthens isometric contraction - ANS-muscle doesn't change delayed-onset muscle soreness (DOMS) - ANS-muscle soreness that develops 24-48 hours after exerc...