Healing & Repair Overview

A cut or break in the continuity of any tissue, caused by injury or operation, often associated by disruption of structure and function

Regeneration and Repair

<p>False (B)</p> Signup and view all the answers

<p>Labile cells, Stable cells and Permanent cells</p> Signup and view all the answers

<p>Variable division rate (B)</p> Signup and view all the answers

<p>Collagen, Elastin, Glycoproteins, Proteoglycans</p> Signup and view all the answers

<p>Type, size, location of wound, Apposition, lack of movement, Infection: Suppuration, Gangrene, Tetanus</p> Signup and view all the answers

<p>True (A)</p> Signup and view all the answers

<p>By gliosis (C)</p> Signup and view all the answers

<p>Immediate - Blood clot, Hours - inflammation, neutrophils &amp; macrophages, Removal of dead bone by osteoclasts, Days - Granulation tissue with osteoblasts and matrix (soft callus), Weeks - Deposition of Calcium (calcification) to form hard callus, Months - Remodeling - removal of excess irregular bone (osteoclasts)</p> Signup and view all the answers

The body's response to injury, aiming to restore integrity and function.

Wounds can be classified as tidy or untidy depending on their appearance and healing pattern.

Healing through the regeneration of parenchymal cells, restoring structure and function.

Healing outcome where tissues do not return to normal, resulting in scar formation.

Cells that actively divide under normal circumstances, allowing rapid regeneration.

Cells that do not normally divide rapidly but can regenerate at a variable rate when needed.

Cells that are unable to divide or regenerate, like certain nerve cells.

Various complex factors including growth factors, hormones, and cellular interaction that affect the regeneration process.

A network composed of collagen, elastin, glycoproteins, and proteoglycans that provides structural support in tissues.

Factors that influence the healing process such as wound type, infection, and blood supply.

Broad factors affecting healing like age, health status, and chronic diseases.

Insufficient scar formation leading to complications like wound dehiscence or ulceration.

Overproduction of scar tissue leading to issues like keloids or hypertrophic scars.

A healing complication resulting in limited joint movement or strictures in channels.

Damage to axons can repair through regrowth, while nerve cells heal by gliosis since they cannot regenerate.

Stages include blood clotting, inflammation, granulation tissue formation, and remodeling into hard callus.

Proteins like EGF, FGF, IGF, and PDGF that play significant roles in tissue repair and regeneration.

Age influences how well tissues can heal, with older individuals often healing slower.

Conditions like diabetes and arthritis can hinder effective wound healing due to underlying health issues.

The result of repair healing when tissue cannot restore its original structure and function.

Issues arising from the healing process, including insufficient or excessive scarring.

Infections during the healing process can severely affect recovery outcomes, causing further complications.

The process of preventing blood loss, which is the first step in wound healing.

Excessive contraction during healing can restrict movement in joints, impacting overall mobility.

A special process where skin closes over a wound, often involving layers and granulation tissue.

Healing following surgical procedures, which can be complicated by various factors like infection.

The duration of healing varies significantly based on several factors including the type of tissue affected.

Identifying wounds as tidy or untidy to assess healing potential and treatment options.

The capacity of skin cells to rapidly divide and replace damaged cells, crucial for wound healing.

Different tissues and organs heal at different rates, impacting recovery times for injuries.