ANTIQUE VINTAGE 1930 SINGER TREADLE SEWING MACHINE & CABINETUp for sale is this 1930 Singer Treadle Sewing Machine (Model 99-13). It is in good condition, with some wood peeling on the corners and an arm missing from the lower flywheel, though still has its original belt.ebay.com.
{Ribs+Sternum = Rib cage}. Rib cage has 12 pairs of ribs or 24 in number. Ribs are divided in three categories on the basis of their size and their connections with the front side of skeleton. True ribs - First 7 pairs {1â7} of rib bones are called true ribs. They connect strernum {breast bone} with coastal cartilage in the front and to the spine at the back by ligaments. [coastal cartilage is elastic in nature and helps the ribcage to expand during respiration].
MEN and women have 12 pairs of ribs (a few individuals have 13 or 11 pairs). The idea that men have fewer ribs than women is widespread but wrong, perhaps deriving from the biblical story of Eve being made from one of Adam's ribs. How many ribs do we have? Both men and women have 24 ribs, twelve on each side.