The myofilament that can be described as bundled golf clubs with their heads sticking out from the bundle is:

Question

Quizplus · Accepted Answer

This description matches myosin, which has a long tail and a head-like structure (sometimes referred to as a "golf club") that sticks out from the tail. The heads of myosin interact with actin during muscle contractions. Troponin and tropomyosin are regulatory proteins that are associated with actin, but do not have the same shape as myosin.

The Myofilament That Can Be Described as Bundled Golf Clubs