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→Types of Bone
**Found in the skull, pelvic girdle, and scapula
**Found in the skull, pelvic girdle, and scapula
**Expand in two directions, with a broad surface for attachment of large muscle masses and protection of underlying structures
**Expand in two directions, with a broad surface for attachment of large muscle masses and protection of underlying structures
*'''Sesamoid Bones'''
**Eg. Patella, Navicular bone
**Found within tendons, where they change direction over prominences that would otherwise cause damage
**Form '''synovial joints''' with major bones with which they are in contact
**Also serve to displace tendon from the axis of the joint, increasing leverage exerted by the muscle
*'''Splanchnic Bones'''
**Develop in soft organs remote from skeletal connection: eg. '''os penis'''
*'''Pneumatic Bones'''
**Excavated to contain air spaces, such as the skull in the instance of paranasal sinuses, and the post-cranial skeleton of birds
==Composition of Bone==
==Composition of Bone==