Question

Put the events of acute inflammation in proper sequence:

• A. Accumulation of the fluid and plasma at the affected site, intravascular activation of platelets, polymorpheo- nuclear neutriphils, followed by healing
• B. Polymoephonuclear netrophils, accumulation offluid and plasma at the affected site, intravascular activation of platelets, followed by healing
• C. Accumulation of fluid and plasms at the affected site, polymorphonuclear neutrophils, intravascular activation of platelets, followed by healing
• D. Intravascular activation of platelets, polymorphonuclear neutrophils, accumulation of fluid and plasma at the affected site, followed by healing

Answer 1

The Correct Option is B

To properly arrange the sequence of events during acute inflammation, we must understand the typical progression this biological response follows when the body reacts to injury or infection.

The stages of acute inflammation usually include:

1. Polymorphonuclear Neutrophils infiltration: These are the first cells to arrive at the site of inflammation. They play a significant role in the initial immune response by phagocytizing bacteria and releasing enzymes.
2. Accumulation of fluid and plasma: Following the initial cellular response, fluid and plasma proteins accumulate at the inflammation site due to increased vascular permeability. This leads to swelling and helps isolate the affected area.
3. Intravascular activation of platelets: Platelets get activated within blood vessels due to endothelial injury, further contributing to the inflammatory response and initiating the healing process.
4. Healing: The final phase involves tissue repair and resolution of the inflammation as the immune system clears away debris and new tissue formation occurs.

Thus, the correct sequence as per the provided options is:

Polymorphonuclear Neutrophils, accumulation of fluid and plasma at the affected site, intravascular activation of platelets, followed by healing.

This progression is logical because for effective healing, the immune system first responds to the tend to immediate threats, such as bacteria, then contains any damage through fluid accumulation, and finally progresses to tissue repair mechanisms.

The correct answer option therefore is: Polymoephonuclear netrophils, accumulation of fluid and plasma at the affected site, intravascular activation of platelets, followed by healing.