The muscle fiber is surrounded by a cell membrane called a...
sarcolemma--smallest part of a muscle
The sarcolemma is attachedto strands of connective tissue called the...
endomysium
Bundles of muscle fibersbare grouped together by a connective tissue sheath called the...
perimysium
Fascicle
Group of Muscle fibers
Think filament
Myosin
Structures (filamentus strutcture along filament) and myosin head. Cross bridge refers to myosin head—projects out in 3 dimensions from think filament.