Immunology of Parasitic Infections

Question 1

This system protects the body from invasion of potential pathogen.

Answer 1

Immune system

Question 2

T or F
Immunity to parasites, especially prokaryotes, is complicated.

Answer 2

False- eukaryotic type of parsites like Helminths and protozoan.

Question 3

This occurs when the parasite successfully establishes itself in the host and is not eliminated by the immune system

Answer 3

Parasitic infection

Question 4

Which statement is/are correct regarding the parasitic infection outcome?
A. Parasites become established, and the host begins to overcome the infection and is totally successful.
B. Parasites fail to become established in the body.
C. Parasites fail to be established, but the host tries to eliminate the organisms while damaging itself.
D. Parasites become established, and the host eliminates the infection.

Answer 4

B and D

Question 5

The ability of the host to cause infection has evolved through the process of…

Answer 5

Natural selection

Question 6

Which is/are true about the concept of natural election?
A. Allow the parasite to be successful in the invasion of hosts.
B. The ability of the host to exhibit defenses against parasites invasion is also selected for.
C. Parasites continuously try to evade the defense mechanism of the host in order to survive.
D. Parasites become specific to somehostst.

Answer 6

All answers are correct.

Question 7

What are the immune defenses provided by the host.

Answer 7

• Natural immune defenses
• Acquired immune defenses

Question 8

T or F
Natural immune defenses are specific defenses, while acquired immune defenses are non-specific defenses.

Answer 8

False- natural (non-specific) while acquired (specific)

Question 9

It was affected by many factors, including genetics, nutritional status, hormonal balance, and age

Answer 9

Non-specidic defenses

Question 10

What are the examples of non-specific defenses?

Answer 10

• Intact skin
• Acid pH of vaginal area and gastric juice
• Mucus secretion
• Human reflexes
• variety of cells in the body that interact with parasites
• Array of cellular components

Question 11

Which statement is/are not true in the statement about specific responses?
A. Recognize self from non-self
B. Non-specific, but they have memory.
C. Stimulated when host is exposed to parasite antigens.
D. Objectives is to kill parasites

Answer 11

B. They are specific defenses.

Question 12

T or F
Protective immunity is directed against the antigen that induced response.

Answer 12

True

Question 13

T or F
Immune response does always equate with protection.

Answer 13

False- it doesn’t