3 1. Which of the following an act as an antigen? a. bacteria b. viruses c. food
ID: 255073 • Letter: 3
Question
3 1. Which of the following an act as an antigen? a. bacteria b. viruses c. food d. All of the above e. A and B only 32. All of the following would be considered a second line of defense, EXCEPT? a. fever c. cilia d. phagocytes e. complement proteins 33. Primary response: occurs on first exposure b. a. is characterized by a lag phase c. is initiated by memory cells d. All of the above e. A and B only 34. Which of the following does NOT occur during the inflammatory response? a. histamine and other chemical mediators are released b. chemotaxis of phagocytes c. increase capillaries and blood flow d. vasoconstriction of blood vessels e. increased permeability of blood vessels 35. Which of the following pairs do not go together? a. Peyer's patches diffused lymphatic tissue of large intestine and appendix b. Thymus gland- Hassell's corpuscles c. Lymph - interstitial fluid picked up by lymphatic capillaries d. Red pulp splenic tissue rich in macrophages for deposing of worn-out RBCs e. Lacteal specialized lymphatic capillary that drains lipids from the GI tract 36. Macrophages: a. are large agranular phagocytic cells of the innate system b. are types of NK cells of the adaptive immunity c. are one type of antigen presenting cells (APC) of the adaptive system d. are made immunocompetent in the thymus gland e. Both A and CExplanation / Answer
31. all of above
32.c cilia is the first line of defense which is always ready to protect our body from infection
33, primary response occurs on first exposure
34. vasoconstriction of blood vessels. vasodilation occurs which leads to increased blood flow to the injured area
35. lacteal are lymphatic capillaries in small intestine that absorbs digested fats
36. both a and c
macrophages are agranular phagoctic cells of innate system and are one type of antigen presenting cells of adaptive system.
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