The bones in the extremities (limbs) and the bones that attach the limbs to the axial skeleton (girdles) are collectively known as the appendicular skeleton. The appendicular skeleton includes the bones of the arms, legs, shoulders, and pelvis. These bones are involved in movements like walking, running, and lifting objects.
The term "appendicular" refers to something that is attached or appended to something else. In this case, the appendicular skeleton is attached to the axial skeleton, which includes the skull, spine, and rib cage. Together, the axial and appendicular skeletons form the complete human skeleton.
Understanding the distinction between the appendicular and axial skeletons is important in anatomy because it helps identify the different functions and structures of bones in the body. The appendicular skeleton supports movement and mobility, while the axial skeleton provides protection for vital organs and stability for the body.
In summary, the bones in the extremities and girdles are collectively known as the appendicular skeleton, highlighting their role in movement and support in the human body.
