Though it is not strictly part of the usual diarthrodial joints, the structure of the intervertebral discs is shortly presented as its pathology is very common problem. Two main parts of the intervertebral discs are the outer ring (annulus fibrosus) and the inner gelatinous material.
In Australia, Ireland, New Zealand and Britain, the term timber describes sawn wood products, such as floor boards. In the United States and Canada, generally timber describes standing or felled trees, before they are milled into boards, which are called lumber.n the United Kingdom, the word lumber is rarely used in relation to wood, and timber is almost universally used in its place; but lumber has several other meanings in Britain, including unused or unwanted items.
Glacier Hardwoods exclusively sells hardwood lumber. What is a hardwood? A hardwood is defined by its leaf form; specifically timber from broad-leafed and deciduous trees. The term does not infer hardness â it is a classification. Generally the timber from hardwoods is heavier and harder than from conifer (needle-leaved) trees but there are many exceptions. Some of the lightest weight and softest woods are hardwoods! Balsa, a wood that is soft and lightweight, is a hardwood.