– Haversian, or central canal – central channel containing blood vessels and nerves
– Volkmann’s canals – channels lying at right angles to the central canal, connecting blood and nerve supply of the periosteum to that of the Haversian canal
• Osteocytes – mature bone cells• Lacunae – small cavities in bone that contain osteocytes• Canaliculi – hair-like canals that connect lacunae to each other and the
central canal
• How are bones classified?
• 1. long• 2. short• 3. flat• 4. irregular
• Approximately what percent of bone is hydroxyapaties? (calcium salts)
• 65% considered non living
• Describe how the growth plate operates.
• During a person’s early years up until 25 for males, and 18 for females, a line of cells between the diaphysis and epiphysis of all long bones go through mitosis to lengthen the bones.
• Name a condition of the bones.
• Acromegaly= caused by a pituitary tumor that signals the body to keep growing after puberty.
• Giantism= same as above but occurs during the growing period.
• All muscles need calcium. Where will your body harvest calcium if it is in short supply?