Chapter 22 Lymphatic System Flashcards Preview

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Flashcards in Chapter 22 Lymphatic System Deck (99)
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31

What are the organs of the immune system?

Thymus, lymph nodes, spleen, and lymphatic nodules.

32

The left subclavian vein receives lymph from

Thoracic Duct

33

The lymph from the right foot empties into the

Thoracic Duct

34

The skeletal muscle and respiratory pumps are used in

Lymphatic, immune, and cardiovascular systems

35

Which organ produces a hormone that promotes maturation of T cells?

Thymus

36

Which portion of the lymph node does not contain any lymphatic nodules.

Inner Cortex

37

What is the function of the spleen?

Immune functions, destruction of blood-borne pathogens, removal of ruptured, worn out, or defective blood cells and platelets, storage of platelets, and production of blood cells during fetal life.

38

What are the physical factors in the first line of defense?

Epidermis of skin, mucous membranes, mucus, hairs, cilia, lacrimal apparatus, saliva, urine, defecation, and vomiting.

39

What are the chemical factors in the first line of defense?

Sebum, lysozyme, gastric juice, and vaginal secretions.

40

What makes up the second line of defense?

Antimicrobial substances, natural killer cells and phagocytes, inflammation, and fever.

41

Which anti-microbial substances reduce viral replication (in uninfected cells)?

Interferons

42

Which anti-microbial substances promote cytolysis, phagocytosis and inflammation?

Complement Proteins

43

Which cell kills infected body cells and tumor cells?

Natural Killer Cells

44

What are the signs of inflammation?

Heat, redness, swelling, and pain.

45

What intensifies the effect of interferons and promotes the rate of repair?

Fever

46

What induces vasodilation and permeability (increased fluid flow) to an infection site?

Histamine, kinins, prostaglandins, leukotrienes, and complement.

47

When B and T cells are fully developed and mature, they are described as being

Immunocompetent

48

What induces the production of a specific antibody?

Antigen

49

What stimulates an immune response ONLY when it is attached to a large carrier molecule?

Hapten

50

Which class of cells includes macrophages, B cells and dendritic cells?

Antigen Presenting Cells

51

To become activated, what requires being bound to a foreign antigen AND simultaneous costimulation?

T Cell

52

Which cells display CD4 proteins and interact with MHC Class II antigens?

Helper T Cells

53

Which class of antibodies is mainly found in sweat, tears, breast milk and GI secretions?

IgA

54

Which action makes microbes more susceptible to phagocytosis?

Opsonization

55

The inability of the immune system to protect the body from a pathogen causes

Immunodeficiency Diseases

56

An acute allergic response can lead to:

Anaphylactic Shock

57

Natural exposure to an infectious agent leads to:

Active Immunity

58

The primary response will peak how many days after an exposure?

10-17

59

Which type of immunity defends against any type of invader?

Nonspecific

60

The ability of an antigen to react specifically with the antibodies or cells it has provoked is called

Reactivity