Which type of fracture results in partial bending and breaking of the bone?

The correct choice is the Greenstick fracture, which is characterized by the bone bending and partially breaking, similar to how a young green twig would behave when bent. This type of fracture typically occurs in children whose bones are still flexible and not fully ossified, allowing for this unique bending without a complete break.

In contrast, other types of fractures behave differently. A spiral fracture usually occurs due to a twisting force and involves a helical break around the bone. A transverse fracture results in a straight break across the bone at a right angle to its axis. A closed fracture refers to a broken bone that does not penetrate the skin, but it does not specifically describe the manner in which the fracture occurs, unlike the Greenstick fracture which distinctly involves partial bending and breaking. Understanding these differences helps clarify the mechanics of bone injuries and guides appropriate treatment approaches.