How can we help?

You can also find more resources in our Help Center.

Study sets matching "immunity host defense"

Study sets
Classes
Users

Study sets matching "immunity host defense"

61 terms
immunity and host defense
microbes vs. humans
cells and organs of the immune system
immune response cells
the blood and lymphatic systems
-Focus has been on how microbes cause disease.... -Now our focus…
-Whole blood is composed of plasma and cells.... -Plasma contain…
see slide 5 chapter 24
slide 10 chapter 24
microbes vs. humans
-Focus has been on how microbes cause disease.... -Now our focus…
cells and organs of the immune system
-Whole blood is composed of plasma and cells.... -Plasma contain…
34 terms
Immunity and Host Defense
Passive protection
Active protection
Innate immunity
Adaptive immunity
Barriers such as skin and mucous membranes.
Involves immune system.
Targets pathogens regardless of their identity, develops with…
Targets specific pathogens via learned recognition, usually t…
Passive protection
Barriers such as skin and mucous membranes.
Active protection
Involves immune system.
17 terms
Host Defense: Innate Immunity
Body must protect against:
3 lines of defense
Physical and Chemical
Inflammation
-Pathogens... -Injury... -Toxins... -Foreign bodies
-Physical and Chemical ... -Inflammation and cellular... -Immune sy…
non-specific
non-specific
Body must protect against:
-Pathogens... -Injury... -Toxins... -Foreign bodies
3 lines of defense
-Physical and Chemical ... -Inflammation and cellular... -Immune sy…
19 terms
Immunity and Host Defense
define phagocytes
define lymphocytes
PAMPs
define inflammation
-leukocytes... - white blood cells for innate immunty
-leukocytes... -B and T cells ... -in adaptive immunity
pathogen-associated molecular patterns... -PRR (macromolecule on…
nonspecific reaction to noxious stimuli
define phagocytes
-leukocytes... - white blood cells for innate immunty
define lymphocytes
-leukocytes... -B and T cells ... -in adaptive immunity
73 terms
Immunity and Host Defense
1) The ability of humans to resist a d…
2) Cells that can engulf foreign parti…
3) Adaptive immunity occurs when
4) Blood and lymph have the following…
immunity
phagocytes
D) the innate immune response fails to eliminate pathogens in…
C) red blood cells.
1) The ability of humans to resist a d…
immunity
2) Cells that can engulf foreign parti…
phagocytes
51 terms
Immunity and Host Defense
Leukocytes
Serum
Lymphatic system
Medulla
.1% of blood cells. Includes phagocytes and lymphocytes and a…
portion of blood that isn't cells or clotting proteins
separate circulatory system that drains lymph fluid from extr…
center of lymph node, plasma cells
Leukocytes
.1% of blood cells. Includes phagocytes and lymphocytes and a…
Serum
portion of blood that isn't cells or clotting proteins
48 terms
Immunity and Host Defense Vocab
adaptive immunity
antibody
antigen
antigen-presenting cell (APC)
the acquired ability to recognize and destroy a particular pa…
a soluble protein produced by B cells and plasma cells that i…
a molecule that interacts with specific components of the imm…
a macrophage, dendritic cell, or B cell that takes up and pro…
adaptive immunity
the acquired ability to recognize and destroy a particular pa…
antibody
a soluble protein produced by B cells and plasma cells that i…
26 terms
31: Immunity and Host Defense
innate immunity
phagocytes
adaptive immunity (specific or acquired)
3 functions of adaptive immunity
mechanisms that work against ALL microbial pathogens, does no…
specialized blood cells that engulf and kill most pathogens
ability to recognize and destroy specific pathogens that resu…
1. recognize a pathogen and their toxins... 2. discriminate betw…
innate immunity
mechanisms that work against ALL microbial pathogens, does no…
phagocytes
specialized blood cells that engulf and kill most pathogens
77 terms
Immunity and Host Defense
How do leukocytes travel through the b…
Which branch of the immune system are…
Which cells have MHC II?
Which cells have MHC I?
They circulate in the blood and lymph, and reside in the lymp…
Both innate and adaptive
Macrophages, B lymphocytes and Dendritic cells (antigen prese…
All nucleated cells
How do leukocytes travel through the b…
They circulate in the blood and lymph, and reside in the lymp…
Which branch of the immune system are…
Both innate and adaptive
10 terms
Immunity and Host Defense
What are some examples of leukocytes
Cytokines
Phagocytes
What type of cells are granulocytes an…
-Monocytes ... -Phagocytes ... -Lymphocytes
Promote immune reactions and influence the development of ste…
Cells that engulf other cells or particles
Monocytes ... -Neutrophil ... -Mast cell... -Basophil... Esoinphil
What are some examples of leukocytes
-Monocytes ... -Phagocytes ... -Lymphocytes
Cytokines
Promote immune reactions and influence the development of ste…
19 terms
Adaptive Host Defenses: Immunity
Adaptive host defense factors
Antibody responses (Specific)
Antibody
Step 1 AMI
immune factors that are triggered by antigens, substances pro…
Antibody binds specifically to the antigen that induced its f…
produced by B cells (lymphocytes) stimulated by T cells in re…
Phagocytes called antigen presenting cells (APCs) engulf, pro…
Adaptive host defense factors
immune factors that are triggered by antigens, substances pro…
Antibody responses (Specific)
Antibody binds specifically to the antigen that induced its f…
30 terms
Host Defenses: Specific Immunity
Adaptive (specific) defenses
Third line of defense = ... (Specific imm…
Antigens
epitopes
*microbe has some antigen that will make specific receptors…
ACQUIRED ... -ANTIGEN ... -SPECIFICITY ... -MEMORY
foreign parts of microbes that can mobilize the adaptive defe…
Specialized region on antigens where T/B-cells recognize
Adaptive (specific) defenses
*microbe has some antigen that will make specific receptors…
Third line of defense = ... (Specific imm…
ACQUIRED ... -ANTIGEN ... -SPECIFICITY ... -MEMORY
16 terms
Oral Immunity & Host defenses
Defenses against bacteria
Defenses against viruses
Defenses against Fungal infections
Defenses against Parasites
- 4 types of pathogens... Extracellular: ... -Neutralizing antibodi…
-All viruses are intracellular pathogens ... -NK cells kill viru…
-Cutaneous infections of the skin: neutrophils & activated ma…
-Activation of Macrophages (Th1 CD4 T cell respose) ... -extrace…
Defenses against bacteria
- 4 types of pathogens... Extracellular: ... -Neutralizing antibodi…
Defenses against viruses
-All viruses are intracellular pathogens ... -NK cells kill viru…
Adaptive Host Defenses: Immunity
adaptive host defense factors
Antibody-mediated immunity (AMI)
antibody
antigen presenting cells (APCs)
are immune factors that are triggered by antigens, substances…
antibody responses
is produced by B cells (lymphocytes) stimulated by T cells in…
are phagocytes that engulf, process and present fragments of…
adaptive host defense factors
are immune factors that are triggered by antigens, substances…
Antibody-mediated immunity (AMI)
antibody responses
102 terms
Host Defenses/Immunity
The human body teems with microbial hi…
The human body is under ___________ at…
Name the two types of defenders we have.
Which immunity contains barriers of in…
Harmless, beneficial
Constant
Nonadaptive/innate and adaptive immunity
Nonadaptive Immunity
The human body teems with microbial hi…
Harmless, beneficial
The human body is under ___________ at…
Constant
51 terms
Host Defenses and Immunity
- Health of host... - Physical barriers... -…
- Inflammation and phagocytosis... - Nons…
- Lymphocytes ... - Specific
What are the cardinal sings of inflamm…
First line of defense
Second line of defense
Third line of defense
heat, swelling, pain and redness
- Health of host... - Physical barriers... -…
First line of defense
- Inflammation and phagocytosis... - Nons…
Second line of defense
47 terms
Host Defenses and the Immune System
First Line of Defense
Second Line of Defense
Third Line of Defense
First Line of Defense Qualities
structural and biochemical features preventing infection
-Innate or Non-specific Immunity which is active against broa…
Specific or acquired immunity which is active against a speci…
-all exposed surfaces are lined with epithelium... -borders are…
First Line of Defense
structural and biochemical features preventing infection
Second Line of Defense
-Innate or Non-specific Immunity which is active against broa…
81 terms
Host Immune Defenses
Host defense mechanisms have _____ lin…
The fist ___ lines of defenses are non…
What lines of defense are nonspecific?
The _____ line of defense, the adaptiv…
three
two
the first two
third
Host defense mechanisms have _____ lin…
three
The fist ___ lines of defenses are non…
two
51 terms
Tizard I: Immunity and Host Defense
Colonization
pathogenicity
virulence
opportunistic pathogen
growth of microorganism after it gained access to host tissues,
ability of parasite to inflict damage on host
measure of pathogenicity
causes disease in absence of normal host resistance (like in…
Colonization
growth of microorganism after it gained access to host tissues,
pathogenicity
ability of parasite to inflict damage on host
58 terms
Chapter 24:Immunity & Host Defense
leukocytes
cytokines
whole blood
plasma
nucleated white blood cells
influence the development of stem cells
plasma and cells
proteins and other solutes
leukocytes
nucleated white blood cells
cytokines
influence the development of stem cells
52 terms
Chapter 24: Immunity and Host Defense
Cytokines influences the development o…
Whole blood is composed of...
Serum
Lymphatic system
Stem cells
Plasma and cells... Plasma contains proteins and other solutes
The portion of blood that's not cells or clotting proteins
A separate circulatory system that drains lymph fluid from ex…
Cytokines influences the development o…
Stem cells
Whole blood is composed of...
Plasma and cells... Plasma contains proteins and other solutes
113 terms
Chapter 24: Immunity and Host defense
What is Immunity?
Innate immunity
Innate immunity involves the recogniti…
Innate immune response is mediated by?
- ability of an organism to resist infection
- the body's ability to recognize and destroy pathogens or th…
pathogen- associated molecular patterns (PAMPs)
phagocytes
What is Immunity?
- ability of an organism to resist infection
Innate immunity
- the body's ability to recognize and destroy pathogens or th…
19 terms
CHAP 24 (immunity and host defense)
innate/adaptive
innate immunity
adaptive immunity
immune response
Active immunity (2 kinds)
non-specific resistance
resistance to specific pathogens
bodys ability to recognize and destroy a pathogen or its prod…
innate/adaptive
Active immunity (2 kinds)
innate immunity
non-specific resistance
50 terms
Chapter 24: Immunity and Host Defense
innate immunity
phagocytes
adaptive immunity
stem cells
the body's built in ability to recognize and destroy pathogen…
cells that can ingest, kill, and digest most microbial pathog…
the acquired ability to recognize and destroy a specific path…
the common precursor that cells in innate and adaptive immuni…
innate immunity
the body's built in ability to recognize and destroy pathogen…
phagocytes
cells that can ingest, kill, and digest most microbial pathog…
72 terms
Chapter 24 Immunity and Host Defense
How is innate immunity different from…
How is active immunity different from…
Natural vs Active?
How is blood different from lymph?
Innate immunity: born with it, the body's built-in ability to…
Active immunity: you make antibody; long term... Passive immunit…
Natural Active Immunity: you get an infection and your body p…
Blood cells are able to move between the circulatory and the…
How is innate immunity different from…
Innate immunity: born with it, the body's built-in ability to…
How is active immunity different from…
Active immunity: you make antibody; long term... Passive immunit…
17 terms
Lecture 31: Immunity and Host Defense
know the general innate immunity mecha…
be able to recognize the three main fu…
what is an antigen
know how phagocytes recognize pathogen…
-(nonspecific immunity): involves mechanisms that work agains…
-the ability to recognize and destroy specific pathogens or t…
any molecule or portion of a molecule that stimulates a respo…
1. they recognize pathogenassociated molecular patterns (PAMP…
know the general innate immunity mecha…
-(nonspecific immunity): involves mechanisms that work agains…
be able to recognize the three main fu…
-the ability to recognize and destroy specific pathogens or t…
20 terms
Lecture 31 - Immunity and host Defense
phagocytes
innate
adaptive
lymphocytes
innate immunity is carried out by cells known as_______, whic…
the type of immunity that is a preexisting ability to recogni…
the type of immunity that recognizes and destroys specific pa…
the specialized cells that are responsible for adaptive immun…
phagocytes
innate immunity is carried out by cells known as_______, whic…
innate
the type of immunity that is a preexisting ability to recogni…
25 terms
Lecture 31: Immunity and Host Defense
Innate Immunity
Phagocytes
Adaptive Immunity
Lymphocytes
A preexisting ability to recognize pathogens or their toxins…
Cells that carry out Innate Immunity, and are specialized blo…
1. Recognize a pathogen and their toxins.... 2. Discriminate bet…
Specialized cells that are responsible for adaptive immunity.…
Innate Immunity
A preexisting ability to recognize pathogens or their toxins…
Phagocytes
Cells that carry out Innate Immunity, and are specialized blo…
48 terms
chapter 24 immunity and host defense
-0.1% of blood cells are leukocytes... -i…
-the lymphatic system is a separate ci…
mucosa-associated lymphoid tissue (MAL…
leukocytes are nucleated white blood c…
...
...
...
...
-0.1% of blood cells are leukocytes... -i…
...
-the lymphatic system is a separate ci…
...
17 terms
Host defense ; Nonspecific immunity (micro)
Nonspecific immunity has the following…
Nonspecific immunity includes these me…
True or False: Normal flora is a defen…
Nonspecific killing mechanisms include…
1-immediately available 2- works against most microbes
1- skin and mucosal cells slough off to decrease micorbial lo…
True
lysozyme
Nonspecific immunity has the following…
1-immediately available 2- works against most microbes
Nonspecific immunity includes these me…
1- skin and mucosal cells slough off to decrease micorbial lo…
31 terms
Innate Immunity: nonspecific defense of the host
the ability to ward off disease caused…
lack of immunity
immunity that refers to defense that a…
immunity based on a specific response…
immunity/resistance
susceptibility
innate immunity
adaptive immunity
the ability to ward off disease caused…
immunity/resistance
lack of immunity
susceptibility
30 terms
Immunology I, Immunity and Host Defense
leukocytes
serum
lymphatic system
mucosa-associated lymphoid tissue (MALT)
Nucleated white blood cells which make up 0.1% of the blood;…
portion of the blood that is not cells or clotting proteins
a separate circulatory system that drains lymph fluid from ex…
contains lymphocytes and phagocytes and interacts with antige…
leukocytes
Nucleated white blood cells which make up 0.1% of the blood;…
serum
portion of the blood that is not cells or clotting proteins
46 terms
Innate and Adaptive Immunity in Host Defense
Innate Immune Components
Adaptive Immune Components
Anatomic Barriers
Epithelial Barriers
Anatomic barriers, physiologic barriers, phagocytic barriers,…
B lymphocytes, Ab; T lymphocytes, cytokines
Epithelial barriers, mucous membranes, saliva, tears, persper…
Skin provides mechanical barrier against microbes; sebaceous…
Innate Immune Components
Anatomic barriers, physiologic barriers, phagocytic barriers,…
Adaptive Immune Components
B lymphocytes, Ab; T lymphocytes, cytokines
22 terms
Host defense; specific immunity (micro)
specific immunity is an immune respons…
Foreign molecules may be..
Another name for a foreign molecule wh…
Which type of white blood cell is alwa…
the response only targets a single foreign molecule
1-from microbes 2-from transplanted organs 3-from chemicals 4…
antigen
lymphocyte
specific immunity is an immune respons…
the response only targets a single foreign molecule
Foreign molecules may be..
1-from microbes 2-from transplanted organs 3-from chemicals 4…
44 terms
Micro301 Immunity/Host Defenses
Antigen
Cytokines
Chemokines
Who is Edward Jenner?
any substance which is capable of inducing a specific immune…
proteins excreted by leukocytes in response to microbes and o…
are cytokines that stimulate leukocyte motility and direct th…
father of immunology - termed vaccination
Antigen
any substance which is capable of inducing a specific immune…
Cytokines
proteins excreted by leukocytes in response to microbes and o…
89 terms
Nonspecific Defenses (Innate Immunity) of the Host
Resistance or Immunity
Susceptibility
Nonspecific resistance
Specific resistance
Ability to ward off disease through defenses
Lack of resistance
- Innate immunity... - Defences that protect us from any kind of…
- Adaptive immunity... - Body defenses directed against a partic…
Resistance or Immunity
Ability to ward off disease through defenses
Susceptibility
Lack of resistance
56 terms
Lec 31: Immunity and Host Defense
what is innate immunity?
innate immunity is carried out by what…
what are phagocytes?
what is adaptive immunity?
a preexisting ability to recognize pathogens or their toxins…
phagocytes
specialized blood cells that engulf and kill most pathogens.
the ability to recognize and destroy specific pathogens or th…
what is innate immunity?
a preexisting ability to recognize pathogens or their toxins…
innate immunity is carried out by what…
phagocytes
31 terms
Adaptive Immunity: Specific Defenses of the Host
Immunology
healthy functioning immune system is r…
How do white blood cells distinguish S…
humoral immunity
the study of all features of the body's second and third line…
1. surveillance of the body... 2. recognition of foreign materia…
they evaluate cells by examining markers on their surfaces
B cells mature in bone marrow... - Ab (MADGE) against bacter…
Immunology
the study of all features of the body's second and third line…
healthy functioning immune system is r…
1. surveillance of the body... 2. recognition of foreign materia…
117 terms
Specific Defenses (Adaptive Immunity) of the Host
Innate (nonspecific) immunity
Adaptive (specific) immunity... - How do…
Why do the B cell's cell membrane proc…
Germ Theory of Disease
Humans, animals, have some defenses that are always present t…
Involves the production of a specific defensive response when…
Allow B cell to react with antigen
Specific pathogenic microbes are responsible for specific dis…
Innate (nonspecific) immunity
Humans, animals, have some defenses that are always present t…
Adaptive (specific) immunity... - How do…
Involves the production of a specific defensive response when…
117 terms
Chapter 24 Immunity and Host Defenses
0.1%
cytokines
plasma and cells
proteins and other solutes
What percent of blood cells are leukocytes?
influence the development of stem cells
What is whole blood composed of?
what does plasma contain?
0.1%
What percent of blood cells are leukocytes?
cytokines
influence the development of stem cells
87 terms
Lecture 8 - Host Defenses/Immunity
microbial hitchhikers
microbial invaders
nonadaptive immunity
adaptive immunity
the human body teams with these; most are harmless; some are…
human body is also under constant attack by these; defenders…
innate; barriers to infection; nonspecific responses to destr…
reaction to specific antigens (parts of foreign proteins, sug…
microbial hitchhikers
the human body teams with these; most are harmless; some are…
microbial invaders
human body is also under constant attack by these; defenders…
13 terms
CH. 24- Immunity and Host Defenses
Immunity
Innate Immunity
Acquired Immunity
Humoral Immunity
ability to fight off infection
Immunity you are born with
...
...
Immunity
ability to fight off infection
Innate Immunity
Immunity you are born with
9 terms
Viral Pathogenesis & Host Immune Defense
DNA tumor causing viruses
RNA tumor causing viruses
Patterns of viral infection
RIG I
1. Papillomavirus (HPV) - cervical cancers... 2. Herpesvirus: Ep…
1. Retroviruses - Human T-cell Leukemia Virus (HTLV 1), HIV... 2…
1. Acute infection followed by clearance (Ebola, Influenza, h…
A pathogen recognition receptor (PRR). Binds dsRNA, activates…
DNA tumor causing viruses
1. Papillomavirus (HPV) - cervical cancers... 2. Herpesvirus: Ep…
RNA tumor causing viruses
1. Retroviruses - Human T-cell Leukemia Virus (HTLV 1), HIV... 2…
38 terms
Topic 4 - Host Defenses (Immunity)
What is innate immunity?
Where is adaptive immunity found in?
What are the four functions of adaptiv…
Define heterogeneity (adaptive immunity)
Born - genetic factors
Higher vertebrates
- Recognition of self vs non-self... - Specificity... - Heterogenei…
Ability to recognize/respond specifically to billions of diff…
What is innate immunity?
Born - genetic factors
Where is adaptive immunity found in?
Higher vertebrates
25 terms
Specific Defenses of the Host: The Immune Response
Humoral and cellular immunity
Epitotes
Haptens
Typical antibody molecule
Humoral immunity involves antibodies, which are found in seru…
Generally antibodies recognize and interact with specific reg…
A molecule too small to stimulate antibody formation, but whe…
Humoral and cellular immunity
Humoral immunity involves antibodies, which are found in seru…
Epitotes
Generally antibodies recognize and interact with specific reg…
Microbiology: Host Defenses- Specific Immunity
Specific immunity, third line of defense
Antigens
ANTIbody GENErating, is how they created
Most antigens are
AQUIRED. antigen, specificity and memory
substances that can mobilize the adaptive defenses and provok…
antigen
large, complex molecules not normally found in the body. (non…
Specific immunity, third line of defense
AQUIRED. antigen, specificity and memory
Antigens
substances that can mobilize the adaptive defenses and provok…
38 terms
Innate Immunity: nonspecific defenses of the host
susceptibility
immunity
innate immunity
adaptive immunity
lack of resistance... - they have no adaptive resistance to the…
ability to ward off disease
defenses against any pathogen; nonspecific surface and in…
immunity resistance to a specific pathogen
susceptibility
lack of resistance... - they have no adaptive resistance to the…
immunity
ability to ward off disease
115 terms
Host Defenses and Immunity Exam 4
What are the three different types of…
What is the first line of defense's go…
Is first line of defense specific, inn…
What are examples of physical barriers…
Innate, nonspecific, specific
prevent infection; health of host, physical barriers, chemica…
nonspecific- protects against all organisms
surface of the body (skin), pH saliva and tears
What are the three different types of…
Innate, nonspecific, specific
What is the first line of defense's go…
prevent infection; health of host, physical barriers, chemica…
18 terms
Introduction to Host Defense: The Immune System
Innate Immunity
Adaptive Immunity
Antigens
Epitopes
- natural or native immunity... - always present in healthy indi…
- specific or acquired immunity... - develops more slowly ... - mor…
- molecules recognized by the immune system... - almost any chem…
- antigenic determinates ... - sites within antigens to which an…
Innate Immunity
- natural or native immunity... - always present in healthy indi…
Adaptive Immunity
- specific or acquired immunity... - develops more slowly ... - mor…
48 terms
Innate Immunity: Nonspecific Defenses of the Host
Skin
Dermis
Epidermis
Mucous membranes
The largest organ---has two distinct portions.
The inner, thicker portion.
The outer, thinner portion...in contact with the environment.…
Epithelial layer and underlying connective tissue.... *Lines th…
Skin
The largest organ---has two distinct portions.
Dermis
The inner, thicker portion.
1 of 10