A&p Ii Exam 2 Chapter 20 & 21

Front 1

The Lymphatic system

Back 1

Right Lymphatic duct

Thoracic duct

Cisterna chyli

Lymphatic collecting vessels

Cervical nodes

Axillary nodes

Inquial nodes

Front 2

Adjacent cells in lymphatic capillaries overlap each other loosely. What is the unique structural modification that increases their permeability?

Back 2

minivalves

Front 3

Which of the following promotes closure of the minivalves associated with lymph capillaries?

Back 3

increasing pressure inside the lymph capillary

Front 4

Lymph from the right leg ultimately is delivered to which duct in the thoracic region?

Back 4

thoracic duct

Front 5

What is the name of the enlarged sac to which the lumbar trunks and the intestinal trunk return lymph?

Back 5

cisterna chyli

Front 6

Once collected, lymph ultimately drains into __________.

Back 6

venous circulation

Front 7

The filtration of lymph and activation of the immune system are the two basic functions of the __________.

Back 7

lymph nodes

Front 8

What region of the lymph node contains follicles filled with dividing B cells?

Back 8

cortex

Front 9

Which of the following is a role of lymph nodes?

Back 9

They filter lymph

Front 10

Lymph arrives at the lymph nodes via afferent lymphatic vessels.

Back 10

True

Front 11

Which lymphoid organ is primarily active during the early years of life?

Back 11

The thymus

Front 12

Which of these lymphoid organs is part of a collection of tissues called the mucosa-associated lymphoid tissues (MALT) and removes pathogens entering the pharynx (throat)?

Back 12

The tonsils

Front 13

Which part of the spleen is the site of immune function?

Back 13

white pulp

Front 14

Which tonsil is located in the posterior wall of the nasopharynx and is referred to as the adenoids if it is enlarged?

Back 14

pharyngeal tonsil

Front 15

Peyer's patches are mucosa-associated lymph tissue located in the __________.

Back 15

wall of the small intestine

Front 16

Which lymphoid organ(s) serve(s) as the site where B lymphocytes become immunocompetent B cells?

Back 16

red bone marrow

Front 17

Which of the following provides a first line of defense against pathogens?

Back 17

intact skin and mucous membranes

Front 18

Which letter represents the formation of a phagolysosome resulting from the fusion of a lysosome with the phagocytic vesicle?

Back 18

The lysosome fuses with the phagocytic vesicle, forming a phagolysosome. By this point, the phagocyte has already adhered to the pathogen.

Front 19

With what does our immune system coat pathogens to facilitate their capture and accelerate phagocytosis?

Back 19

opsonins

Front 20

Four (or five) cardinal signs indicate inflammation. What specific sign of inflammation is the result of exudate in the tissue spaces?

Back 20

edema (swelling)

Front 21

Which of the following inflammatory chemicals is/are released by mast cells?

Back 21

histamine

Front 22

What characterizes the chemotaxis phase of phagocyte mobilization?

Back 22

Neutrophils and other WBCs migrate up the gradient of chemotactic agents to the site of injury.

Front 23

How do interferons protect against viral infection in healthy cells?

Back 23

Interferons block viral reproduction in healthy cells through the production of antiviral proteins.

Front 24

Which of the following is an effect of complement activation?

Back 24

opsonization

Front 25

How does a lymphocyte exhibit immunocompetence?

Back 25

by being able to recognize their one specific antigen

Front 26

T cells achieve self-tolerance in the __________.

Back 26

thymus

Front 27

Which of the following statements does NOT describe the adaptive immune response?

Back 27

It occurs immediately after the body is challenged by foreign material.

Front 28

Which of the following are properly matched?

Back 28

IgG: most abundant antibody

Front 29

Which of the following activate CD8 cells?

Back 29

antigen fragments on class I MHC proteins

Front 30

What type of T cell can directly attack and kill other cells, such as virus-infected cells?

Back 30

cytotoxic T (TC) cells

Front 31

Which of the following are NOT appropriately matched?

Back 31

helper T cells: destroy infected cells

Front 32

What types of antigen do T cells NOT recognize?

Back 32

self-antigens

Front 33

Which of the following are NOT correctly matched?

Back 33

immediate hypersensitivity: allergic contact dermatitis

Front 34

Tears and mucus membranes would be a part of which defense system?

Back 34

innate external defenses

Front 35

Phagocytotic cells such as macrophages identify a variety of enemies by recognizing markers unique to pathogens. They would be classified as which type of defense system?

Back 35

innate internal defenses

Front 36

What cells make antibodies?

Back 36

plasma B cells

Front 37

What is the name of the unique area (specific region) that a lymphocyte recognizes and binds to?

Back 37

an antigenic determinant

Front 38

What type of immunity can be transferred by bodily fluids from one person to another, thus conferring immunity to the recipient?

Back 38

humoral immunity

Front 39

If a virus attacks a cell, which type of immunity would be activated?

Back 39

cell-mediated immunity (cellular immunity)

Front 40

Cancer cells would be attacked by which of the following cells?

Back 40

Cytotoxic T cells