What are the Main Divisions of the Skeleton?
The human skeleton is composed of 206 bones, which are organized into two main divisions: the axial skeleton and the appendicular skeleton.
The axial skeleton consists of the bones that form the central axis of the body. It includes the skull, the vertebral column, and the rib cage. The skull protects the brain and other vital organs, while the vertebral column supports the body and provides protection for the spinal cord. The rib cage encloses the heart, lungs, and other organs.
The appendicular skeleton consists of the bones of the limbs and the girdles that attach them to the axial skeleton. The pectoral girdle connects the upper limbs to the axial skeleton, while the pelvic girdle connects the lower limbs. The upper limbs include the humerus, radius, ulna, carpals, metacarpals, and phalanges. The lower limbs include the femur, tibia, fibula, tarsals, metatarsals, and phalanges.
Related Questions:
- How many bones are in the human skeleton? Answer: 206
- What is the function of the skull? Answer: To protect the brain and other vital organs.
- What bones make up the rib cage? Answer: Ribs, sternum, and vertebrae.
- What is the largest bone in the body? Answer: Femur (thigh bone).
- What is the difference between the axial and appendicular skeletons? Answer: The axial skeleton forms the central axis of the body, while the appendicular skeleton consists of the bones of the limbs.
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