Inflammatory Oedema Causes

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Questions and Answers

What type of immune cells are associated with pus or suppuration?

Lymphocytes

Eosinophils

Macrophages

Neutrophils (correct)

What is the typical timeframe for chronic inflammation?

Days to weeks

Years to decades

Months to years

Weeks to months or years (correct)

What is a characteristic feature of chronic inflammation?

Fibrosis (correct)

Vasodilation

Vascular changes

Edema

What is not a characteristic feature of chronic inflammation?

Vascular changes Signup and view all the answers

What is the result of chronic inflammation?

Scarring Signup and view all the answers

What is pleurisy?

Inflammation of the pleura Signup and view all the answers

What is the term for inflammation of lung parenchyma?

Pneumonia Signup and view all the answers

What is the purpose of inflammation in the body?

To fight off infections Signup and view all the answers

What is the difference between pleurisy and pneumonia?

Pleurisy affects the pleura, while pneumonia affects the lung parenchyma Signup and view all the answers

What is the result of inflammation in the body?

Swelling Signup and view all the answers

What is the medical term for the fluid accumulation caused by inflammation?

Inflammatory oedema Signup and view all the answers

What is one of the causes of endothelial contraction?

Histamine Signup and view all the answers

What is another term for the fluid accumulation?

Swelling Signup and view all the answers

What is the name of the chemical that causes endothelial contraction?

Bradykinin Signup and view all the answers

What is the result of endothelial contraction?

Increased fluid accumulation Signup and view all the answers

What occurs when there is an extravasation of protein-rich fluid?

Exudate Signup and view all the answers

What do leukocytes extend to attach to the extracellular matrix?

Pseudopods Signup and view all the answers

What is the term for the extreme slowing of blood flow?

Stasis Signup and view all the answers

What role do pseudopods play in leukocyte movement?

They help leukocytes attach to the extracellular matrix Signup and view all the answers

What is the result of stasis?

Pooling of blood Signup and view all the answers

What is the term for the fluid that pours into the extravascular tissues?

Exudate Signup and view all the answers

After attaching to the extracellular matrix, what happens to the rest of the leukocyte?

The remainder of the cell pulls itself towards the attachment point Signup and view all the answers

What is the consequence of stasis on the blood vessels?

Weakened blood vessels Signup and view all the answers

What is the purpose of leukocytes extending pseudopods?

To attach to the extracellular matrix and move towards it Signup and view all the answers

What is the result of leukocytes extending pseudopods and attaching to the extracellular matrix?

The leukocyte moves towards the attachment point Signup and view all the answers

Study Notes

Inflammation

Inflammation is a protective response to tissue damage or infection
Characterized by the pouring of protein-rich fluid (exudate) into extravascular tissues

Types of Inflammation

Pleurisy: Inflammation of the pleura (membranes surrounding the lungs)
Pneumonia: Inflammation of lung parenchyma (lung tissue)

Phases of Inflammation

Acute: PMN's (Neutrophils), Pus/suppuration
Chronic: Weeks to months or years, characterized by fibrosis (scarring) and no vascular changes

Mechanisms of Inflammation

Stasis: Extreme slowing of blood flow leading to fluid accumulation and inflammatory oedema (swelling)
Causes of stasis:
Endothelial contraction caused by histamine, bradykinin, and leukotrienes
Leukocytes extending pseudopods to attach to the extracellular matrix and pulling the remainder of the cell after