In the sliding filament model of muscle contraction, the myofilaments slide over each other, resulting in the overlapping of actin and _________.
A. actin
B. myosin
C. tropomyosin
D. thin filaments
E. troponin
Answer: B. myosin
You might also like to view...
Which type of tissue attaches to the underlying muscles and supports the framework for body organs?
A. Epidermal tissue B. Adipose tissue C. Reticular tissue D. Areolar tissue
Twitch summation
a. is a means by which gradation of muscle contraction may be accomplished b. results from the additional release of Ca2+ within the cytosol of muscle fibers c. results from increasing the frequency at which motor units are firing within a muscle d. results from more cross bridges binding to actin within muscle fibers e. has all of the above characteristics
Oxidized nicotinamide adenine dinucleotide (NAD) has ________ two hydrogens.
A. gained B. lost C. shared
Which of the following structures include the fibular and tibial collateral ligaments of the knee joint?
a) Synovial membranes b) Articular fat pads c) Menisci d) Extracapsular ligaments e) Tendon sheath