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Are there more thick filaments than thin filaments in smooth muscle?
There more thin filaments than thick filaments in smooth muscle. The ratio is of the thin to thick filaments in the smooth muscle is approximately 15:1.
What structures anchor thin filaments?
I believe the Z-lines anchor the Thin filaments
Myofibrils are composed primarily of two protein filaments called?
thick filaments and thin filaments
What best describes the term Z line?
Thin filaments are anchored here
What are the roles of thick and thin filaments in muscle contraction?
The thin filaments are actin, and the thick filaments are myosin. The filaments run parrel to one another along the length of the sarcomere.The dark bands that occur in the middle of the sarcomere are regions where the thick filaments and thin filaments overlap.
Which of the following become connected by myosin cross-bridges during muscle contraction A) thin filaments and thick filaments B) thin filaments and t-tubules C) thick filaments and titin filame?
Interactions between actin and myosin filaments of the sarcomere are responsible for muscle contractions. The I bands contain only thin (actin) filaments, whereas the A bands contain thick (myosin) filaments.
The thick filaments of muscle fibers are composed of what?
Myosin
What is H zone?
Thin filaments
What muscle cell filaments come closer together when the sarcomere shortens?
thin filaments
Which Muscle movement in myosin heads of the thick filaments pull on the thin filaments causing the thin filaments to slide toward the center of the sarcomere?
Flexing of the cross bridge (power stroke)
What is the h-zone missing?
Thin filaments
Thin filaments of water molds?
Hyphae
