Lecture 10

Question 1

Name the type of epithelia that cover the outside of the skin:

Answer 1

The outside of the skin is covered by epidermal epithelia. Whereas the inside of the skin is covered by mucosal epithelia

Question 2

Give some examples of mechanical, chemical and biological defence systems that are commonly used by the epithelia to resist infect:

Answer 2

Dried up dead cells on epithelium, mucous, pepsin and acid and lysozymes

Question 3

Why are mucosal surfaces generally more prone to infection than other areas?

Answer 3

Significantly greater surface area and moistness

Question 4

What occurs in the process of opsonisation?

Answer 4

The liver will produce complement protein that will bind to the pathogen. This allows the phagocytes to consume the pathogen more easily. It acts like a kind of glue