21. The Immune System

In the inflammatory response, which immune cells are the first to begin the immune response to an injury?

Which of the following is needed for vasodilation and diapedesis to occur at an infection site?

Which immune cells are responsible for removing dead or damaged host material at an injury site?

Match the scenario to the step of the inflammatory response it belongs in. 

1.Tissue Damage & Infection. 

2.Release of Inflammatory Mediators & Cytokines. 

3.Vasodilation and Diapedesis. 

4.Removal of Invading Microbes and Damaged Tissue.

_____Local mast cells release histamines and cytokines when encountering an invading microbe. 

_____Neutrophils destroy the invading microbes found in the injury site. 

_____Peter accidentally cuts his finger with a kitchen knife. 

_____Fluid full of plasma, proteins and immune cells exits the blood stream at injury site. 

_____Macrophages remove the epidermis and dermis cells damaged by the injury. 

_____The blood vessels in the region of the injury dilate releasing immune cells and proteins. 

_____Pathogenic bacteria enter the host’s body.

The attraction of leukocytes to the area on inflammation is referred to as