1. Bones
... or groups of bones provide a framework for the attachment of soft tissue and organs. Delicate tissues and organs are often surrounded by skeletal elements. The ribs protect the heart and lungs, the skull encloses the brain, the vertebrae shield the spinal cord, and the pelvis cradles delicate digestive and reproductive organs. Red blood cells and other blood elements are produced within ... osteopenia. Everyone becomes slightly osteopenic as they age. Between the ages of 30 and 40, osteoblast activity begins to decline, while osteoclast activity continues at normal levels. Osteoporosis ...
- Word Count: 5684
- Approx Pages: 23
- Has Bibliography
- Grade Level: Undergraduate