the head of the rib attaches to the spine.
the head of the rib attaches to the spine.
where does the head of the rib attach?
the spine
rib (disambiguation)









































rib or rib may refer to:









































section::::in anatomy.









































bullet::::- rib, a bone attached to the spine, in vertebrate animals









































bullet::::- ribs (food), the cooked meat and rib bones of a food animal









































bullet::::- rib or costa, the leading edge of an insect wing (see glossary of entomology terms)









































bullet::::- rib, angulated vertical line on the stem of cactus









































section::::in construction.









































bullet::::- rib (aircraft), a portion of an aircraft wing









































bullet::::- rib, one type of transverse member in boat building









































bullet::::- rib, any slender molded masonry arch projecting from a surface, particularly as part of an architectural vault
rib (disambiguation)
in the earlier stage of rib vaulting, the arched ribs consisted of independent or separate voussoirs down to the springing; the difficulty, however, of working the ribs separately led to two other important changes: (1) the lower part of the transverse diagonal and wall ribs were all worked out of one stone; and (2) the lower horizontal, constituting what is known as the tas-de-charge or solid springer. the tas-de-charge, or solid springer, had two advantages: (1) it enabled the stone courses to run straight through the wall, so as to bond the whole together much better; and (2) it lessened the span of the vault, which then required a centering of smaller dimensions. as soon as the ribs were completed, the web or stone shell of the vault was laid on them. in some english work each course of stone was of uniform height from one side to the other; but, as the diagonal rib was longer than either the transverse or wall rib, the courses dipped towards the former, and at the apex of the vault were cut to fit one another. in the early english gothic period, in consequence of the great span of the vault and the very slight rise or curvature of the web, it was thought better to simplify the construction of the web by introducing intermediate ribs between the wall rib and the diagonal rib and between the diagonal and the transverse ribs; and in order to meet the thrust of these intermediate ribs a ridge rib was required, and the prolongation of this rib to the wall rib hid the junction of the web at the summit, which was not always very sightly, and constituted the ridge rib. in france, on the other hand, the web courses were always laid horizontally, and they are therefore of unequal height, increasing towards the diagonal rib. each course also was given a slight rise in the centre, so as to increase its strength; this enabled the french masons to dispense with the intermediate rib, which was not introduced by them till the 15th century, and then more as a decorative than a constructive feature, as the domical form given to the french web rendered unnecessary the ridge rib, which, with some few exceptions, exists only in england. in both english and french vaulting centering was rarely required for the building of the web, a template (fr. "cerce") being employed to support the stones of each ring until it was complete. in italy, germany and spain the french method of building the web was adopted, with horizontal courses and a domical form. sometimes, in the case of comparatively narrow compartments, and more especially in clerestories, the wall rib was stilted, and this caused a peculiar twisting of the web, where the springing of the wall rib is at k: to these twisted surfaces the term ploughshare vaulting is given.
vault (architecture)