Q. Consider the following muscles in the context of vestigial structures in the human body:

1. Palmaris longus
2. Pyramidalis
3. Plantaris

Which of the above are regarded as vestigial muscles in humans?
Answer: 1, 2, and 3
Notes: The palmaris longus, pyramidalis, and plantaris are all considered vestigial muscles in humans. These muscles have little functional significance, and their absence does not affect normal movement. They are considered evolutionary remnants, as similar structures are more prominent or necessary in other species. Thus, all three listed muscles are correctly classified as vestigial in humans.