Hereâs one of the more well known areas of shark anatomy. 1  The fins of a shark are easily recognizable, and immensely important. Most sharks have five different types of fins, while some sharks only have four. These types of fins include: 2  Pectoral. 3  Pelvic. 4  Dorsal. 5  Anal. 6  Caudal.
spinal column. n. 1. (Anatomy) a series of contiguous or interconnecting bony or cartilaginous segments that surround and protect the spinal cord. Also called: spine, vertebral column or rachis Nontechnical name: backbone.
The remaining 9 vertebrae lack the intervertebral disc and form two sets of fused structures. The total length of an adult vertebral column is about 71 cm in men and about 61 cm in women. A detailed account of the number of vertebrae in human beings as well as their names and characteristics have been provided below.