Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025
Definition
The appendicular skeleton includes the bones of the limbs and girdles that attach them to the axial skeleton. It is essential for movement and interaction with the environment.
5 Must Know Facts For Your Next Test
The appendicular skeleton consists of 126 bones.
It includes the pectoral girdle, pelvic girdle, and bones of the upper and lower limbs.
The pectoral girdle comprises the clavicles and scapulae, facilitating arm movement.
The pelvic girdle consists of the hip bones (ilium, ischium, and pubis) which support lower limb attachment.
Long bones like the femur and humerus are part of the appendicular skeleton and are crucial for mobility.
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Related terms
Axial Skeleton: Includes bones of the skull, vertebral column, and rib cage; supports central axis of body
Pectoral Girdle: Consists of clavicles and scapulae; connects arms to torso
Pelvic Girdle: Made up of hip bones; supports attachment of lower limbs