UPDATE!!!!!2025/2026|GUARANTEED
Isotonic concentric contraction - ANSWER The movement when a muscle contracts to
shorten
isotonic eccentric contraction - ANSWER The movement when a muscle contracts to
lengthen
Isometric contraction - ANSWER Muscle contracts but remains static. There is no
change in muscle length.
Muscle Types (3) - ANSWER skeletal, cardiac, smooth
Myofibril - ANSWER tightly packed filament bundles found within skeletal muscle
fibers
Sarcomere - ANSWER a structural unit of a myofibril consisting of two types of protein
(actin and myosin)
Sliding Filament Theory - ANSWER the concept that a sarcomere shortens as the thick
and thin filaments slide past one another and they completely overlap
Actin - ANSWER Thin filament of protein found in muscles
Myosin - ANSWER Thick filament of protein found in muscles
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Isotonic concentric contraction - ANSWER The movement when a muscle contracts to
shorten
isotonic eccentric contraction - ANSWER The movement when a muscle contracts to
lengthen
Isometric contraction - ANSWER Muscle contracts but remains static. There is no
change in muscle length.
Muscle Types (3) - ANSWER skeletal, cardiac, smooth
Myofibril - ANSWER tightly packed filament bundles found within skeletal muscle
fibers
Sarcomere - ANSWER a structural unit of a myofibril consisting of two types of protein
(actin and myosin)
Sliding Filament Theory - ANSWER the concept that a sarcomere shortens as the thick
and thin filaments slide past one another and they completely overlap
Actin - ANSWER Thin filament of protein found in muscles
Myosin - ANSWER Thick filament of protein found in muscles
1
