NAICS Code: 561720 SIC Code: 7349, completed by Perry Byers. The building cleaning industry has two main markets: residential and commercial. The residential market primarily consists of maid services, carpet, window and other like services. The commercial cleaning segment focuses primarily on janitorial services which provide a broader range to include carpet and floor care, window cleaning, vacuuming, etc. The cleaning services industry is a $46 billion dollar industry. The industry is expected to grow 5.5% annually through 2009 1 with current business trends toward outsourcing and purchasing by two income families looking for more leisure time.
The vertebral column (also known as the backbone or the spine), is a column of approximately 33 small bones, called vertebrae.The column runs from the cranium to the apex of the coccyx, on the posterior aspect of the body. It contains and protects the spinal cord.he vertebral column (also known as the backbone or the spine), is a column of approximately 33 small bones, called vertebrae.
Vertebral Column Overview. The Vertebral column (spinal column) supports the head and encloses the spinal cord. The spinal column is comprised of 26 individual bones, these bones are referred to as vertebrae.The spinal column is divided into 5 different areas containing groups of vertebrae and are grouped as follows:7 cervical vertebrae in the neck. 12 thoracic vertebrae in the upper back corresponding to each pair of ribs. 5 lumbar vertebrae in the lower back.5 sacral vertebrae which are fused together to form 1 bone called the sacrum. 4 coccygeal vertebrae that are fused together to form the coccyx or tail-bone. The vertebrae are referred to by their name and number, counting down from the top of the spinal column as follows:he thoracic vertebrae are T1 - T12. The lumbar vertebrae are L1 - L5. The sacrum and coccyx do not have numbers and each is thought of as one bone. Spinal nerves exit the sacrum and coccyx at levels (Foramen) within the main structure of each vertebra.