Cells that break down bone tissue are called:

Rationale:
A. Muscle fiber is the correct term for a single muscle cell. It is multinucleated and contains many myofibrils.
B. Fascicle is a bundle of muscle fibers surrounded by connective tissue (perimysium), not a single cell.
C. Myofibril is a subcellular structure within a muscle fiber made up of repeating sarcomeres; many myofibrils make up one muscle fiber.
D. Myofilament refers to the protein filaments (actin and myosin) within myofibrils that are responsible for contraction, not the entire cell.

Rationale:
A. Phalanges are the bones of the fingers and toes and articulate with adjacent bones in the hands and feet.
B. Hyoid is a U-shaped bone located in the anterior neck that does not directly articulate with any other bone. Instead, it is anchored by muscles and ligaments, providing support for the tongue and serving as an attachment point for muscles involved in swallowing and speech.
C. Patella is the kneecap and articulates with the femur, forming part of the knee joint.
D. Occipital is a cranial bone that articulates with the parietal and temporal bones and forms part of the skull base.