No, the humerus bone is not part of the axial skeleton; it is part of the appendicular skeleton.
The axial skeleton comprises the bones that form the central axis of the body, which includes the skull, vertebral column, ribs, and sternum. In contrast, the appendicular skeleton consists of the bones of the limbs and the supportive girdles that connect them to the axial skeleton.
The humerus is the long bone in the upper arm, extending from the shoulder to the elbow. Its primary role is to facilitate movement and support in the arm, making it a key component of the appendicular skeleton, which is vital for locomotion and manipulation of the environment. Understanding this distinction is important in studies of anatomy and movement, as each skeleton plays a different role in the body’s structure and function.