Exam 13: Body Defense Mechanisms

Match each definition in the first column to the correct term in the second column. -Line of defense with the skin barrier as an example.

A child may be given the vaccine for chickenpox.If the child goes to school and plays with other children who have the chickenpox virus,the vaccinated child will not get sick.Why is this?

Match each definition in the first column to the correct term in the second column. -Line of defense that involves natural killer cells.

Briefly explain the first line of defense that prevents pathogens from invading the body.

An example of a(n)________ barrier is lysozyme found in tears and saliva.

Juana is exhibiting redness,swelling,and elevated temperature in one area of her arm.She has a condition known as ________.

Patrice exhibits extreme pain,fever,swelling,and redness in several of his joints.He knows that he has not experienced trauma to those areas and has no allergies or cancers.Based on the information in the textbook what would be the name for this type of reaction?

________ is the procedure in which a harmless form of an antigen is introduced in order to stimulate an immune response to that antigen.

Match each definition in the first column to the correct term in the second column. -Small mobile connective tissues cells that,along with basophils,release histamine,which causes redness at the site of damage or illness.

This group of proteins can actually punch holes in pathogenic cells.

Any substance that triggers an immune response in the body is called a(n)________.

If all of these hair-like structures,called ________,in respiratory passages suddenly stopped working,a person would probably have more respiratory infections.

________ are molecules that signal to the immune system that particular cells belong to a host.

Allergy shots require many injections over long periods of time to be effective.Why can't the body get over an allergy with just a couple of injections?

________ are less discriminating than some phagocytic cells,and attack and kill anything not recognized as part of the body.

Which is a type of lymphocyte that forms in the bone marrow but matures in the thymus gland?

Why are severe burn patients at extreme risk of infection?

Which antibody has the shape of a pentamer,or 5-sided arrangement?

Antigens are substances that the immune system does not recognize as self.Which of the following are antigens?

If a disease attacked this type of white blood cell,a person would no longer be able to mobilize his or her specific defenses.