Ch 21: Immune System Flashcards Preview

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Flashcards in Ch 21: Immune System Deck (122)
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1

The Immune System protects our bodies from...

microbes that cause infection and disease.

2

What are the "three lines of defense" of the Immune System?

  1. Exterior Barrier
  2. Innate Immune System 
  3. Adaptive Immune System

3

What is the External Border of the Immune System?

The skin

4

The skin of made of _______, the top layer of which contains...

stratified squamous cells

dead keratinized cells

5

_______ makes the skin impentrible to microbes.

Keratin

6

The skin is _______ and contains no _______ for microbes to feed upon.

dry, nutrients

7

The skin has _______ and _______ glands which secrete _______ and ________ which creates an acid mantle on the skin.

sweat glands, sebaceous

sweat, oils

8

The acid mantle is an _______ that _______ microbes.

anti-bacterial, kills

9

The skin secretes what two anti-bacterial proteins?

  1. Dermacidis
  2. Defensin

10

What are the four main openings of the skin?

  1. Mouth
  2. Ears
  3. Urethra
  4. Anus

11

What is the purpose of mucus?

To capture micro-organisms

12

Tears, saliva, and mucus contain an enzyme called _______. 

Lysozyme

13

What does lysozyme do?

breaks down cell walls

14

We are born with our ________ Immune System.

Innate

15

What are four characteristics to keep in mind with the Innate Immune System?

  1. It is more primitive (part of our evolution)
  2. Comes into play if the External Barrier is breached (through puncture or oriface)
  3. Generally local
  4. Supports the Addaptive Immune System

16

What are the five types of Leukocytes standing by to be used by the Innate Immune System?

  1. Neutrophils
  2. Eosinophils
  3. Basophils
  4. Lymphocytes
  5. Monocytes

17

Innate Immune System

Neutrophils are waiting in _______ to engulf microbes.

Connective tissue

18

Innate Immune System

Eosinophils are found in...

 

mucus membranes

19

Innate Immune System

Basophils secrete what two chemical messages and what are their functions?

  1. Interleukins, stimulates activation and creation of more WBCs
  2. Histamines, relate to inflamation

20

Innate Immune System

Lymphocytes are also known as _______.

 

Natural Killer Cells

21

What is the job of natural killer cells?

to patrol tissues and kill cells marked for destruction

22

Innate Immune System

Monocytes are also known as _______ and are _______.

Macrophages, phagocytotic

23

_______ work with the leukocytes to inititate the immune response.

anti-microbial proteins

24

What are the two types of anti-microbial proteins?

  1. Interferons
  2. Complement System

25

Interferons consist of...

anti-viral and anti-cancer proteins

26

The complement system consists of... 

30 different proteins

27

The complement system aids...

both innate and adaptive immunity.

28

The complement system can cause what four things to occur?

  1. Inflamation
  2. Immune clearance
  3. Phagocytosis
  4. Cytolysis

29

The complement system

What is meant by "immune clearance"?

Proteins attach to smaller undetectable microbes to aid system to tag for destruction

30

In the complement system, phagocytosis is triggered by the process of

opsonization