KINES 314 EXAM 1 QUESTIONS AND
ANSWERS
physiology - Correct Answers -the study of the function of cells, tissues, and organ
systems (muscle, nerve, heart, lungs, vascular system)
exercise physiology - Correct Answers -the study of exercise on the function of cells,
tissues, and organ systems; responses to exercise in differing environments (heat,
humidity, and altitude); effects of exercise in specific populations (young and old,
healthy individuals, and those with disease)
homeostasis - Correct Answers -maintenance of a constant and normal internal
environment
steady state - Correct Answers -physiological variable is unchanging, but not
necessarily "normal;" balance between demands placed on body and the body's
response to those demands
functions of skeletal muscle - Correct Answers -force production for locomotion and
breathing, force production for postural support, and heat production during cold stress
order of organization of muscle - Correct Answers -myofibrils -> muscle fiber -> fasicle -
> skeletal muscle
epimysium - Correct Answers -surrounds entire muscle
cross-bridge formation - Correct Answers -Ca2+ binds to troponin causing the
tropomyosin (block binding myosin sites) to shift off and reveal the binding sites
sources of ATP - Correct Answers -phosphocreatine (PC), glycolysis, oxidative
phosphorylation
cross-bridge cycling - Correct Answers -Ca2+ initiates, binds to troponin causing
tropomyosin slides to reveal actin binding site; actin and myosin can interact then
perimysium - Correct Answers -surrounds bundles of muscle fibers (fascicles)
endomysium - Correct Answers -surrounds individual muscle fibers
sarcolemma - Correct Answers -muscle cell membrane
ANSWERS
physiology - Correct Answers -the study of the function of cells, tissues, and organ
systems (muscle, nerve, heart, lungs, vascular system)
exercise physiology - Correct Answers -the study of exercise on the function of cells,
tissues, and organ systems; responses to exercise in differing environments (heat,
humidity, and altitude); effects of exercise in specific populations (young and old,
healthy individuals, and those with disease)
homeostasis - Correct Answers -maintenance of a constant and normal internal
environment
steady state - Correct Answers -physiological variable is unchanging, but not
necessarily "normal;" balance between demands placed on body and the body's
response to those demands
functions of skeletal muscle - Correct Answers -force production for locomotion and
breathing, force production for postural support, and heat production during cold stress
order of organization of muscle - Correct Answers -myofibrils -> muscle fiber -> fasicle -
> skeletal muscle
epimysium - Correct Answers -surrounds entire muscle
cross-bridge formation - Correct Answers -Ca2+ binds to troponin causing the
tropomyosin (block binding myosin sites) to shift off and reveal the binding sites
sources of ATP - Correct Answers -phosphocreatine (PC), glycolysis, oxidative
phosphorylation
cross-bridge cycling - Correct Answers -Ca2+ initiates, binds to troponin causing
tropomyosin slides to reveal actin binding site; actin and myosin can interact then
perimysium - Correct Answers -surrounds bundles of muscle fibers (fascicles)
endomysium - Correct Answers -surrounds individual muscle fibers
sarcolemma - Correct Answers -muscle cell membrane
