Final answer:
Osteoclasts are responsible for bone resorption, not bone building. Osteoblasts build bone, and osteoclasts regulate calcium levels in the body by dissolving bone matrix. Bones develop primarily through endochondral ossification or intramembranous ossification, depending on the bone type.
Step-by-step explanation:
Identifying Incorrectly Matched Bone Cells and Functions
The statement that is not matched correctly is 'osteoclasts – bone building cells'. This is because osteoclasts are responsible for bone resorption, not bone building. The cells that are responsible for bone formation are called osteoblasts. When osteoblasts become trapped in the matrix they secreted, they differentiate into osteocytes, which are the mature bone cells. The process of bone formation is overseen by the actions of these cells as well as by the osteoprogenitor cells, which develop into osteoblasts.
Other statements in the question are accurately matched: 'osteocytes – mature bone cells', 'Haversian canals – contain blood vessels and nerves', and 'hematopoiesis – formation of blood cells'. Haversian canals do indeed contain both blood vessels and nerve fibers, and hematopoiesis is the process through which blood cells are formed.
Functionality of Bone Cells
In the case of low calcium levels affecting nervous system and muscle functions, the type of bone cell most likely to be dysfunctional would be the osteoclasts. These cells help regulate calcium concentrations in body fluids by releasing lysosomal enzymes and acids that dissolve the bone matrix, releasing minerals such as calcium into the blood.
Development of Bones
Endochondral ossification is the process by which bones develop from hyaline cartilage. This process mainly applies to the formation of long bones, such as the clavicle, and not typically to the skull, which mostly develops through intramembranous ossification.