Get more help from Chegg. Bone matrix is secreted within the fibrous membrane and calcifies 3. There are pores and spaces even in compact bone. The extracellular matrix may be semifluid or rigidly solid and hard as in bone. Quiz & Worksheet Goals. Compact bone appears solid and spongy bone consists of a web- or sponge-like arrangement of solidified extracelluar matrix. Only 25% of bone is water. Get 1:1 help now from expert Anatomy and Physiology tutors When the concentrations of calcium and phosphate ions rise high enough, they are deposited into the extracellular matrix, and the bone calcifies. Almost 70% of bone is made up of bone mineral called hydroxyapatite. Osteoblasts are bone cells that are responsible for bone formation. d. Choices a and b only are correct e. Choices a, b, and c are correct . Red marrow appears. While compact bone appears at first glance to be solid and uninterrupted, closer inspections reveals that the osseous tissue only makes up from 70-95% of the available volume. The most abundant mineral is calcium phosphate, although magnesium, carbonate, and fluoride ions are also present. Bone. c. ground substance. The matrix of bone contains collagen fibers and mineral deposits. The extracellular matrix (ECM) is an intricate dynamic bio-environment with precisely regulated mechanical and biochemical properties. 3 The extracellular matrix of bone consists of a. collagen fibers b. calcium hydroxyapatite crystals. They consist of two outer layers of compact bone … Most abundant are the fibres composed of the protein collagen. Extracellular matrix. extracellular matrix Non-living material secreted by cells that fills spaces between the cells in a tissue, protecting them and helping to hold them together. In bone, ECMs are involved in regulating cell adhesion, proliferation, and responses to growth factors, differentiation, and … Use these questions to help you review: Bone regeneration repairs bone tissue lost due to trauma, fractures, and tumors, or absent due to congenital disorders. The focus of these questions includes topics such as the structure and function of the extracellular matrix (ECM). Before the extracellular matrix is calcified, the tissue is called osteoid (bone-like) tissue. Bone tissue will need to become opaque and inflexible. In biology, the extracellular matrix (ECM) is a three-dimensional network of extracellular macromolecules, such as collagen, enzymes, and glycoproteins, that provide structural and biochemical support to surrounding cells. Osteoblasts synthesize and secrete the organic part and inorganic part of the extracellular matrix of bone tissue, and collagen fibers. 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