1.What percent of the body is smooth muscle? 5% to 10%Striated muscle? 40%
2.Name 3 types of muscle proteins. What is the function of each?
Stroma- constitutes about 1/5 of muscle protien, it holds the rest of the structures in place.
Cellular- metabolically active cells
Contractile- essential for contraction
3.What is a myofibril? form longitudinal straitions in the muscle
4.Sketch a picture of a sarcomere. Label the I-band, the A-band, the Z-line and the H-zone.
5.Name the two filaments that make up a sarcomere. I band and A band
6.Draw a sarcomere at rest, stretched out and contracted.
7.What is the sliding filament theory? explains that the thick and thin filaments within the sarcomere slide past one another, shortening the entire length of the sarcomere
8.Muscle relaxation ensues upon the removal of what?calcium ions
3.What is a myofibril? form longitudinal straitions in the muscle
4.Sketch a picture of a sarcomere. Label the I-band, the A-band, the Z-line and the H-zone.
5.Name the two filaments that make up a sarcomere. I band and A band
6.Draw a sarcomere at rest, stretched out and contracted.
7.What is the sliding filament theory? explains that the thick and thin filaments within the sarcomere slide past one another, shortening the entire length of the sarcomere8.Muscle relaxation ensues upon the removal of what?calcium ions
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Good job!
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