Question

4. The diaphysis of Mrs. Morgan's humerus is fractured. What type of bone makes up the majority of the diaphysis of long bones like the humerus? Describe the layers of bone tissue found here.

5. Most connective tissue, including bone, is highly vascular. Which anatomical structures in Mrs. Morgan's compact bone house blood vessels? What sign or symptom in Mrs. Morgan's case is directly related to disruption of these structures by her bone fractures? How is the sign or symptom related to these anatomical structures?

Answer 1

The majority of the diaphysis of long bones like the humerus is made up of compact bone. Compact bone has layers of osteons, lamellae, Haversian canals, and canaliculi.

Step-by-step explanation:

The majority of the diaphysis of long bones like the humerus is made up of compact bone. Compact bone is found on the walls of the diaphysis and is hard and dense. It provides strength and support to the bone.

The layers of bone tissue found in the diaphysis include osteons, which are subunits of compact bone. Each osteon consists of concentric circles of lamellae, which surround a central canal called the Haversian canal. The Haversian canal houses blood vessels and a nerve. Radiating from the Haversian canal are small channels called canaliculi, which allow for the exchange of nutrients and waste between the cells.