Haversian canals (also called central canals) run longitudinally through the bone and contain blood vessels and nerves which supply the bone.
Business casual: Generally means khaki pants, a plain polo shirt or a long-sleeved casual button-down oxford shirt, a V-neck sweater, sometimes a sports coat or blazer, and brown leather shoes. Loafers are a good choice, and you should wear socks.
Business Casual for Men. 1  1. Choose shirts that have collars, such as long-sleeve button down shirts. 2  2. Wear pants styles such as khakis, dress pants, trousers and corduroy pants. 3  3. Consider pairing your shirt with a sweater or sweater vest.  4. Select formal leather shoes, and donât forget the dress 1  socks. 5. Study the list of don' ts.