sliding filament theory Flashcards
1
Q
myofibril
A
a unit of muscle cells
2
Q
myofilament
A
bundles of actin and myosin together make a myofilament many myofilaments make a myofibril
3
Q
sacromere
A
a section of a myofibril that contain fibrous proteins (actin and myosin) that slide past each other
4
Q
actin
A
the thin filaments found in a sacromere
5
Q
myosin
A
the thick filaments found in a sarcomere
6
Q
H zone
A
where only myosin is present
7
Q
A band
A
area in the centre of the sarcomere where thin filaments and thick filaments overlap
8
Q
Z line
A
attachment point of the actin filaments
9
Q
M line
A
attachment points for the myosin filaments
