Chapter 16 Flashcards Preview

Med Micro Exam 2 > Chapter 16 > Flashcards

Flashcards in Chapter 16 Deck (24)
Loading flashcards...
1
Q

Define Resistance

A

the ability to ward of disease

2
Q

Define susceptibility

A

lack of resistance

3
Q

Specific resistance includes

A

T lymphocytes and B lymphocytes

4
Q

The spleen and the lymph nodes play the biggest role in what?

A

Your body’s defense system

5
Q

What is your body’s first line of defense?

A

skin

6
Q

What is the lacrimal apparatus?

A

a group of structures that protect the eye by making and draining away tears

7
Q

Cilia protects what?

A

your lungs

8
Q

What are chemical factors that are part of your first line of defense?

A

sebum, sweat glands, gastric juices

9
Q

A microorganism must pass what to get into your circulatory system?

A

lymph nodes

10
Q

Sweat glands produce perspiration that contains what?

A

lysozymes

11
Q

What is the 2 most important WBC’s? Their functions?

A

Neutrophils; phagocytosis

Monocytes (macrophages); phagocytosis and antigen presentation

12
Q

What is the function of basophils?

A

makes heparin and histamine (allergy)

13
Q

What is the function of eosinophils?

A

phagocytosis, toxic proteins against parasites

14
Q

What is the function of Lymphocytosis?

A

B and T Cells and immunity

15
Q

What is the function of thrombocytes?

A

blood clotting

16
Q

What is the most predominant entry way for microorganisms?

A

respiratory tract

17
Q

*What are the 5 steps of phagocytosis?

A
  1. Chemotaxis
  2. Adherence
  3. Ingestion
  4. Digestion
  5. Discharge
18
Q

What happens in vasodilation?

A

redness releases histamine which causes swelling

19
Q

What are the 3 pathways of the complement system?

A
  1. Classical Pathways
  2. Alternate Pathways
  3. Complement activation
20
Q

What do the 3 pathways accomplish?

A

Inflammation, phagocytosis, cytolysis

21
Q

By what 2 proteins is inflammation accomplished?

A

C3a and C5a

22
Q

C5-C9=_________

A

Hydrolysis

23
Q

What is the explanation for Interferon?

A

RNA virus causes interferon to be made, then interferon goes to enter and warn healthy cells, causing cells to produce antiviral proteins.

24
Q

What are interferons? What do they do?

A

They are proteins produced by a host cell when there is an RNA virus. They then enter and warn healthy cells causing them to produce antiviral proteins.