Quiz 2 Stuff Flashcards
Muscle can produce maximal tension when it is at the optimal length- the optimal length is when there are maximal _ between actin and myosin filaments.
Cross bridges
What describes the interaction between action and myosin to cause contraction/ relaxation of muscle?
Sliding Filament Theory
The _ pathway provides energy (ATP) for exercise that lasts ~60 seconds, in the absence of O2.
Glycolysis
The _ pathway provides energy (ATP) for exercise lasting longer than 60 seconds and requires O2.
Oxidative
The _ pathway provides energy (ATP) for maximal muscle contractions for 5-8 seconds.
Phosphocreatine
_ muscle fibers are white because they have less blood supply and therefore do not have as much myoglobin (which carries oxygen and is red).
Type II
_ muscle fibers are red because they have an increased capillary supply.
Type I
The increase in cross-sectional area of muscle fibers possibly resulting from resistance training.
Hypertrophy
Mechanoreceptors in the muscle that sense stretch and cause the muscle to contract.
Muscle spindles
Mechanoreceptors in the muscle that sense tension and cause the muscle to relax.
Golgi tendon organs
_ is the prime mover and responsible for majority of particular movement.
Agonist
_ is the muscle the opposes the prime mover.
Antagonist
_ is the muscle that assists the prime mover.
Synergist
Bicep curl occurs in the _ plane.
Sagittal
Abduction and adduction occurs in the _ plane.
Frontal
