Collagen fibril diameters and the volume occupied by collagen were quantified at the ultrastructural level in the chordae tendineae of the rabbit and the sheep. Collagen fibril diameter distribution was unimodal and significant differences were found between values on the left and right sides, those on the left being greater than those on the right. The differences are discussed in terms of mechanical loading and compared with results obtained from other tendinous structures subjected to continuous loading.
|