A connective tissue with a matrix that contains crystals of calcium phosphate is called

The connective tissue you are referring to is called bone tissue or simply bone. Bone is a specialized type of connective tissue that has a mineralized matrix primarily composed of calcium phosphate crystals. This unique structure provides bones with strength and rigidity, allowing them to serve as the framework for the body, protect vital organs, and facilitate movement by serving as levers for muscles.

Bone tissue is categorized into two types: compact bone, which is dense and forms the outer layer of bones, and trabecular or spongy bone, which has a porous structure found within the inner cavity of bones. The mineralization of the matrix is crucial for the mechanical properties of bones, enabling them to withstand various forces and loads during physical activities.