Teaching students about tone, mood and purpose will encourage students to analyze poetry in a more meaningful way; instead of students examining simply what is being said, students will be encouraged to analyze how and why it is being said.
Located in the main shaft of a long bone (consisting mostly of compact bone), the medullary cavity has walls composed of spongy bone (cancellous bone) and is lined with a thin, vascular membrane . However, the medullary cavity is the area inside any bone (long, flat, etc.) that holds the bone marrow.
Midlands Technical College states that the medullary cavity is a hollow space in the middle of some bones. The medullary cavities hold bone marrow, an important substance that produces blood cells, among other activities. Wikipedia states that this hollow cavity is also called the medulla or marrow cavity in some cases.