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Multiple Choice
Muscles with parallel fascicle arrangement tend to shorten a great deal upon contracting; thus, these types of muscles tend to be very powerful.
A
False
B
True
Verified step by step guidance
1
Understand the concept of muscle fascicle arrangement: Muscles can have different fascicle arrangements, such as parallel, pennate, convergent, and circular. Each arrangement affects the muscle's function and strength.
Recognize the characteristics of parallel fascicle arrangement: In parallel muscles, the fascicles run parallel to the long axis of the muscle. This arrangement allows for a greater range of motion but does not necessarily increase the power of the muscle.
Compare parallel fascicle arrangement with other types: Pennate muscles, for example, have fascicles that attach obliquely to a central tendon, allowing for more fibers in a given area and thus greater force production.
Evaluate the statement: The statement claims that parallel muscles are very powerful due to their ability to shorten significantly. However, while they can shorten more, they are not as powerful as muscles with pennate arrangements, which can generate more force.
Conclude the analysis: Based on the understanding of muscle fascicle arrangements, the statement that parallel muscles are very powerful is false. They are designed for range of motion rather than maximum force production.