periosteum is the pain center of the bone. When a bone
fractures, the pain that is felt comes from the
periosteum, not the bone proper. Periosteum also forms
new bone. The diaphysis is the elongated, cylindrical
portion (or shaft) of the bone that is between the
epiphyses (sing. epiphysis) or ends of the bone.
BONE CLASSIFICATIONS
Bones are classified according to their shape. The
four bone classifications and examples of each are as
follows:
Long bonesfemur and humerus
Short boneswrist and ankle bones
Flat bonesskull, sternum, and scapula
Irregular bonesvertebrae, mandible, and
pelvic bones
DIVISIONS OF SKELETON
The human skeleton is divided into two main
divisions, the axial skeleton and the appendicular
skeleton.
Axial Skeleton
The axial skeleton consists of the skull, the
vertebral column, and the thorax.
1-7
HM3F0113
CRANIUM
FACE
SKULL
CLAVICLE
SCAPULA
STERNUM
RIBS
HUMERUS
ULNA
COXAL BONE
RADIUS
CARPALS
FEMUR
PATELLA
TIBIA
FIBULA
TARSALS
METATARSALS
PHALANGES
HYOID
VERTEBRAL
COLUMN
METACARPAL
VERTEBRAL
COLUMN
SACRUM
COCCYX
PHALANGES
Figure 1-13.Human skeleton.