How can gut microflora protect people from infection?

How do microfilariae get into the blood?

Which of the following is not a part of the inflammation process? a) Intracellular gaps in vessels that allow passage of large proteins Ob) Dilation of vessels c) Increased permeability of vessels d) Contraction of vascular smooth muscle e) Increased blood flow

Helper T cells: A) produce antibodies B) can act as memory cells C) initiate both the cell mediated response and the humoral response D) all of the above

Q10

What is the role of histamine in inflammation? A)Histamine increases the volume of blood flow in the area of the infection. B)All these choices are correct. C)Histamine signals to neutrophils to migrate to the site of infection. D)Histamine makes it easier for neutrophils to move from the bloodstream to the site of infection.

3)  Name each of these cells. A) These immune cells make antibodies.    B) These phagocytes destroy helminths and fungi and play a role in allergies. C) These lymphocytes play a role in the innate response to kill virally infected cells and cancer cells. D) These innate cells are phagocytes that present and activate T cells and activate wound repair. E) These granulocytes are the first cells from the blood to the site of infection. F) These phagocytes present antigens to naïve mature T cells.

Identify physical and chemical barriers to pathogens. Howmight these barriers be compromised?

Which of the following are important for viral protection? ( select all the correct answers)    a) Macrophages b) Interferons c) Skin d) Natural Killer lymphocytes

Signs of inflammation due to a local hyperemia are caused by b) heparin c) phagocyte mobilization d) histamine e) complement production e) complement production