True or False: A typical long bone of an adult consists of two main parts: the shaft and ends.

The statement is true because a typical long bone in an adult is indeed composed of two primary regions: the shaft, known as the diaphysis, and the ends, referred to as the epiphyses. The diaphysis is the cylindrical, elongated part of the bone that provides strength and support, while the epiphyses are the rounded ends that articulate with other bones at joints. This structure allows for proper lever mechanics and weight distribution in the skeleton. Additionally, long bones have a medullary (marrow) cavity inside the diaphysis, which houses bone marrow, contributing to hematopoiesis (blood cell formation). Thus, the identification of these two main parts is fundamental to understanding long bone anatomy and function.