The extracellular matrix in bone is composed of collagen fibers, non-collagenous proteins, and hydroxyapatite.

Keratin fibers, lipids, and calcium carbonate

Elastin, myofibrils, and sodium chloride

Chitin, glycoproteins, and magnesium sulfate

Hormone regulation

Nerve signal transmission

The primary functions of bone tissue are support, movement, protection, mineral storage, and blood cell production.

Energy production

Bone tissue helps in the digestion of minerals.

Bone tissue stores minerals like calcium and phosphorus.

Bone tissue is mainly responsible for fat storage.

Bone tissue primarily functions in blood cell production.

Cartilage and ligaments

Compact bone and spongy bone

Fibrous bone and elastic bone

Cancellous bone and dense bone

Compact bone is soft and flexible, while spongy bone is hard and solid.

Compact bone contains more blood vessels than spongy bone.

Spongy bone is found only in the skull, while compact bone is found throughout the body.

Compact bone is dense and strong, while spongy bone is lighter and has a porous structure.

Adipocytes

Fibroblasts

Chondrocytes

Osteoblasts

Osteoclasts are responsible for bone growth.

Osteoclasts produce new bone tissue.

Osteoclasts play a crucial role in bone resorption and remodeling.

Osteoclasts help in the formation of cartilage.

Osteocytes maintain bone tissue by regulating mineral content and communicating with other bone cells.

Osteocytes primarily function as a storage site for fat in the bone.

Osteocytes absorb nutrients from the bloodstream to maintain bone density.

Osteocytes produce new bone tissue independently of other cells.

The periosteum is involved in the formation of cartilage.

The periosteum serves as a cushioning layer for joints.

The periosteum is significant for bone nourishment, protection, and as an attachment site for muscles and tendons.

The periosteum is primarily responsible for blood cell production.

Bone remodeling is the process of replacing old bone with cartilage.

Bone remodeling only involves the activity of osteoblasts.

Bone remodeling is the process of bone growth without any resorption.

Bone remodeling is the process of resorption of old bone and formation of new bone, involving osteoclasts and osteoblasts.

Bone tissue increases in density and strength in response to mechanical stress.

Bone tissue becomes more brittle when exposed to mechanical stress.

Bone tissue decreases in density and strength in response to mechanical stress.

Bone tissue remains unchanged regardless of mechanical stress.

Adipocytes

Osteoblasts, osteocytes, osteoclasts, and bone lining cells.

Chondrocytes

Fibroblasts

Bone marrow stores calcium and phosphorus for bone strength.

Bone marrow produces blood cells and supports the immune system.

Bone marrow acts as a cushion to protect bones from impact.

Bone marrow is responsible for producing hormones that regulate growth.

Collagen is essential for providing structural support, strength, and flexibility to bone tissue.

Collagen is mainly involved in the formation of muscle tissue.

Collagen serves as a primary energy source for bone cells.

Collagen is primarily responsible for the production of red blood cells.

Age negatively affects bone structure and function, leading to decreased density and increased fracture risk.

Age improves bone density and reduces fracture risk.

Age has no effect on bone structure or function.

Older age leads to stronger bones and better function.