Author Question: Which of the following phenomena best accounts for the increased presence of leukocytes at the site ... (Read 30 times)

CBme · **on:** Jun 25, 2018

Which of the following phenomena best accounts for the increased presence of leukocytes at the site of inflammation?

A)
Existing leukocytes stick to the epithelial cells and move along blood vessel walls.
B)
Increased numbers of leukocytes are released into circulation via cytokine stimulation.
C)
Leukocytes are osmotically drawn from circulation into the interstitial space as a result of swelling.
D)
Epithelium expresses leukocyte stimulation factors in response to cell injury.

Question 2

Which of the following individual situations listed below best exemplifies the processes of innate immunity?

A)
A child who has experienced heat and swelling of his skinned knuckle
B)
An adult who complains of itching and is sneezing because he is allergic to pollen
C)
A client whose blood work indicates increased antibody titers during an acute illness
D)
A client who has experienced rejection of a donor liver after transplantation

milbourne11 · **Reply #1 on:** Jun 25, 2018

Answer to Question 1

Ans:
A

Feedback:

During inflammation, leukocytes accumulate at the point of epithelial contact in the processes of margination, adhesion, and transmigration. This is not directly achieved by a way of increased leukocyte production or release, nor by osmotic pressure. The epithelium does not produce leukocyte stimulation factors.

Answer to Question 2

Ans:
A

Feedback:

In a skinned knuckle, one of the body's main innate defenses, the skin, is breached. The heat and swelling that accompany a breach in the skin are inflammatory responses, part of the body's innate immune defenses. Allergies are an inappropriate adaptive response mediated by immunoglobulin E; antibody titers increase during illness in response to the infection; and transplanted organs are rejected because the organ is recognized as foreign. These are all aspects of specific, acquired immunity.