NTA NTP CORRECT TEST WITH
ANSWERS
Immune System (Parts & Function): Integumentary System -
CORRECT ANSWER-Provides physical barriers and nonspecific innate immunity:
1. Cutaneous membranes: cover and protect exterior surfaces
of body
2. Mucous membranes: line and protect body cavities and ...
Immune System (Parts & Function): Integumentary System -
CORRECT ANSWER-Provides physical barriers and non-
specific innate immunity:
1. Cutaneous membranes: cover and protect exterior surfaces
of body
2. Mucous membranes: line and protect body cavities and
organs
3. Serous membranes: surround and protect organs
4. Synovial membranes: line and protect joints
5. Adipose tissue: communicates metabolic state of body to
immune system via hormones called adipokines, which in turn
control immune cell activity
Immune System (Parts & Function): Digestive System -
CORRECT ANSWER-Provides physical barriers, innate and
adaptive immunity:
1. HCl and pepsin: neutralizes pathogens before entering
intestine
2. GALT: houses 70-80% of immune system cells
3. Epithelial cells: secrete protective mucous as barrier against
colonization and invasion by pathogens (1 layer thick in small
intestine; 2 layers thick in large intestine), rich in antimicrobial
proteins like lysozyme (enzyme that catalyzes destruction of
cell walls of certain bacteria), facilitate nutrient digestion and
,assimilations, provide immunological surveillance signals at
gut-mucosa-lumen interaface
4. Gut Flora in Large Intestine: stimulates immunity, feeds
epithelial cells (produce SFAs for fuel), crowds out pathogenic
bacteria
Immune System (Parts & Function): Bone Marrow - CORRECT
ANSWER--Spongy tissue inside bones where all new blood
cells and immune cells are created
-Housed mainly in central skeletal system--pelvis, sternum,
cranium, ribs, vertebrae, scapulae, femur
Immune System (Parts & Function): Thymus - CORRECT
ANSWER--Adaptive immune response "school" where T cells
are taught how to respond to specific pathogens and how to
differentiate between self-cells and invaders
-Immature T cells migrate from b_______ m____________ to
t_______________ to continue development
-Once mature, T cells migrate to other lymphatic tissue and
organs where they become active when needed
Main transportation systems and "meet-up spots" for
pathogens, antigens, phagocytes, B cells, and T cells
, Immune System (Parts & Function): Lymph Nodes - CORRECT
ANSWER--"Dating bars" where B and T cells meet antigens
and antigen presenting cells
-Antigens and antigen presenting cells enter through incoming
arteriole or (afferent) lymphatic vessel (a way to catch invaders)
-B cells, T cells and antigen presenting cells circulate through
lymphatic system until they make a "match"
-Provide "factory space" for B and T cells to proliferate in
response to a specific pathogen or antigen
-Scattered throughout body, both superficial and deep
Immune System (Parts & Function): Lymphatic Vessel -
CORRECT ANSWER--Entry point for antigens and antigen
presenting cells
-Closed at one end and start as small lymphatic capillaries in
tissues
-Carry lymph that forms in tissues to larger l_______________
v________________
-Along with blood stream, this acts as highways to transport
cells and substances to the scene of the "crime"
Immune System (Parts & Function): MALT - CORRECT
ANSWER-Mucosal Associated Lymphoid Tissue
-Specialized lymphatic tissue situated along all mucosal
surfaces of the body
-Found in skin, eyes, nose, mouth, tonsils, GI tract, respiratory
tract, urinary tract, reproductive tract,
-Provide sites for macrophages, B cells and T cells to meet up
with pathogens and antigens (microbes, viruses, parasites,
allergens)
-Stand watch over body's barriers by communicating directly
with mucosal surfaces
-Outgoing lymphatics connect these vessels with lymphatic
system
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