S7: Immunobiology

Question 1

When the body repairs damaged tissue, there is proliferation of what two cells?

Answer 1

Fibroblasts and endothelial cells

Question 2

What are fibroblasts?

Answer 2

Specialized cells capable of producing fibrous tissues which give substance and strength to healing tissue

Question 3

What are endothelial cells?

Answer 3

Form the walls of blood capillaries which bring extra blood (nutrients) into the injured area

Question 4

What is healing by first intention mean?

Answer 4

Takes place after an injury where there has been minimal tissue damage and ideally no bacterial contamination.

Question 5

What is healing by second intention mean?

Answer 5

Takes place after injuries in which there has been considerable tissue loss and damage.

Question 6

Who successfully demonstrated the principles of “vaccination”?

Answer 6

Edward Jenner

Question 7

What is immunology?

Answer 7

The study of the defense mechanisms of the body

Question 8

What is interferon?

Answer 8

An antiviral agent (not an antibody). Released from virus infected cells and acts upon other viruses by stopping the formation of viral nucleic acid, and therefore the replication of viruses

Question 9

What is seroconversion?

Answer 9

The changeover from a nonexistent or low antibody titre to one that is elevated