Chapter 21 (Lymphatic System)

Question 1

fluid contained within the lymphatic system

Answer 1

Lymph fluid

Question 2

one of the bean-shaped organs found associated with the lymphatic vessels; removes debris and pathogens from lymph

Answer 2

Lymph node

Question 3

smallest of the lymphatic vessels and the origin of lymph flow

Answer 3

Lymphatic capillaries

Question 4

large lymphatics that collect lymph from smaller lymphatic vessels and empties into the blood via lymphatic ducts

Answer 4

Lymphatic trunk

Question 5

What is the flow of lymph throughout the body?

Answer 5

Lymph capillaries, lymphatic vessels, lymphatic ducts, circulatory system

Question 6

network of lymphatic vessels, lymph nodes, and ducts that carries lymph from the tissues and back to the bloodstream.

Answer 6

Lymphatic system

Question 7

any of the group of proteins that binds specifically to pathogen-associated molecules

Answer 7

Antibody

Question 8

molecule recognized by the receptors of B and T lymphocytes

Answer 8

Antigen

Question 9

lymphocytes that act by differentiating into an antibody-secreting plasma cell

Answer 9

B-cells

Question 10

cytotoxic lymphocyte of innate immune response

Answer 10

Natural killer cells

Question 11

differentiated B cell that is actively secreting antibody

Answer 11

Plasma cell

Question 12

lymphocyte that acts by secreting molecules that regulate the immune system or by causing the destruction of foreign cells, viruses, and cancer cells

Answer 12

T-cell

Question 13

the site of all blood cell differentiation and maturation of B lymphocytes

Answer 13

Bone marrow

Question 14

primary lymphoid organ; where T lymphocytes proliferate and mature

Answer 14

Thymus gland

Question 15

What are the 2 primary lymphoid organs?

Answer 15

Thymus gland and bone marrow

Question 16

Site where lymphocytes mount adaptive immune responses

Answer 16

Secondary lymphoid organs

Question 17

What are 2 examples of secondary lymphoid organs?

Answer 17

Spleen, lymph nodules

Question 18

secondary lymphoid organ that filters pathogens from the blood (white pulp) and removes degenerating or damaged blood cells (red pulp)

Answer 18

Spleen

Question 19

aggregate of lymphoid follicles directly associated with the mucous membrane epithelia; found in gastrointestinal tract, breast tissue, lungs, and eyes

Answer 19

MALT

Question 20

unencapsulated patches of lymphoid tissue found throughout the body

Answer 20

Lymphoid nodules

Question 21

Lymphoid nodules important in developing immunity to oral pathogens

Answer 21

Tonsils

Question 22

What is significant about lymph capillaries?

Answer 22

Contain endothelial flaps that prevent the back flow of lymph

Question 23

ingest pathogens to destroy them

Answer 23

Phagocytic cells

Question 24

specifically coordinate the activities of adaptive immunity

Answer 24

Lymphocytes

Question 25

help mediate immune responses against parasites and intracellular pathogens such as viruses

Answer 25

Cells containing cytoplasmic granules

Question 26

antipathogen defenses deriving from a barrier that physically prevents pathogens from entering the body to establish an infection

Answer 26

Barrier defenses

Question 27

relatively slow but very specific and effective immune response controlled by lymphocytes

Answer 27

Adaptive

Question 28

Immunity you're born with

Answer 28

Innate

Question 29

Loss of immunity with aging

Answer 29

immunosenescence

Question 30

Has physical barrier that prevents pathogens from entering, also has secretions (sweat and sebaceous glands) that make the environment have a low pH

Answer 30

Skin

Question 31

Lysozymes in mouth

Answer 31

Salivary glands

Question 32

low pH in stomach

Answer 32

GI tract

Question 33

Prevent pathogens from growing on mucosal surfaces

Answer 33

Normal flora