The directional migration of leukocytes along a chemical gradient ...

[yoooooman]

The directional migration of leukocytes along a chemical gradient is termed:
 
  a. chemotaxis.
  b. endocytosis.
  c. margination.
  d. diapedesis.

Question 2

A 20-year-old male received a knife wound to the arm during an altercation. Which of the fol-lowing types of immunity was compromised?
 
  a. Innate immunity
  b. Inflammatory response
  c. Adaptive immunity
  d. Specific immunity

[Viet Thy]

Answer to Question 1

ANS: A
Chemotaxis is the process by which leukocytes undergo directed migration. Endocytosis is a form of engulfment and a part of phagocytosis. Margination occurs when leukocytes adhere to endothelial cells in the walls of vessels. Diapedesis is the emigration of the cells through cell junctions that have loosened in response to inflammatory mediators.

Answer to Question 2

ANS: A
The epithelial cells of the skin are a part of innate immunity. The inflammatory response is not a type of immunity. Adaptive immunity is represented by the normal flora of the bowel. Specific immunity is a type of adaptive immunity and is not associated with a break in skin integrity.

[yoooooman]

Excellent

[FergA]

Gracias!