What percent of the body is smooth muscle? Striated muscle? 5% to 10% is smooth muscle and 40% is striated muscle
Name 3 types of muscle proteins. What is the function of each? Stroma – an inert structural element, or skeleton, to hold the rest of the structures together. Cellular – these proteins are not specifically characteristic of muscle since they are also found in other metabolically active cells. Contractile – two types: myosin and actin that are essential for contraction.
What is a myofibril? A muscle fiber
Sketch a picture of a sarcomere. Label the I-band, the A-band, the Z-line and the H-zone.
Name the two filaments that make up a sarcomere. Myosin and Actin
Draw a sarcomere at rest, stretched out and contracted.
What is the sliding filament theory? This theory is the state that the sarcomere is in. When the thick and thin filaments move across each other.
Muscle relaxation ensues upon the removal of what? Calcium ions
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1 comment:
Nice work! You turned in your sketches separately. All is good.
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