Bone Remodeling, Skin, and Healing

Flashcards based on lecture notes about bone remodeling, skin, and healing.

Scars

Biological scaffolds that fill in areas of damage. They can extend beyond the area of damage and spread out. These are created during periods of inflammation.

Reduced Movement

Involuntary movement or pain that causes discomfort – the ability to move certain parts of the body depends on nerves and muscles being intact.

Osteoclasts

Bone cells that resorb or break down damaged bone tissue, clearing the damaged surface. They are similar to demolishing a building to build new bone tissue.

Osteoblasts

Cells responsible for building new bone tissue, similar to building or constructing a building. They essentially reshape the original shape of the bone and produce a matrix that loses bone tissue.

Callus

The material produced by osteoblasts; it bridges the two sides of the lost bone and acts like a splint for bone tissue. New bone tissue fills in the callus, and osteoclasts essentially reshape the callus back to its original shape.

Skin (during healing)

Rapid growth experienced when the body is healing or during activities such as weight-lifting or exercise. Repaired tissue develops in response to pulled apart skin.

Hypertrophic Scars

Similar to biological scars; these may be permanent or temporary and caused by an imbalance of collagen or the site of an injury that does not allow the scar to form properly.

Tissue Formation

The formation of tissue together depends on the location and depth of formation. Fibrous tissue can form to help hold the damaged tissue together, like a bandage to help heal a wound.

Extrinsic Factors

Can play a role in scar development, as well as a person’s age and overall health, the part of the body involved, and any immunological conditions.

Acne Scars

Skin scars caused by excessive inflammation of deep pits in the skin, often filled with fluid, lactose, or oil.