EVERYDAY SCIENCE

Detailed explanation-1: -Your axial skeleton is made up of the 80 bones within the central core of your body. This includes bones in your skull (cranial and facial bones ), ears, neck, back (vertebrae, sacrum and tailbone) and ribcage (sternum and ribs).

Detailed explanation-2: -The adult human skeleton usually consists of 206 named bones. These bones can be grouped in two divisions: axial skeleton and appendicular skeleton. The 80 bones of the axial skeleton form the vertical axis of the body.

Detailed explanation-3: -The axial skeleton supports the head, neck, back, and chest and thus forms the vertical axis of the body. It consists of the skull, vertebral column (including the sacrum and coccyx), and the thoracic cage, formed by the ribs and sternum.

Detailed explanation-4: -The axial skeleton includes the bones that form the skull, laryngeal skeleton, vertebral column, and thoracic cage. The bones of the appendicular skeleton (the limbs and girdles) “append” to the axial skeleton.

Detailed explanation-5: -The skeleton is subdivided into two major divisions-the axial and appendicular. The axial skeleton forms the vertical, central axis of the body and includes all bones of the head, neck, chest, and back (Figure 7.2). It serves to protect the brain, spinal cord, heart, and lungs.