Immune System and Organization

Lakukan tugas rumah & ujian kamu dengan baik sekarang menggunakan Quizwiz!

Disorders of the immune system that are caused by a decrease in immune function include __________.

AIDS

Which of the following are lymphocytes?

B cells, T cells and NK (natural killer) cells

Which of the following statements about MHC molecules is true?

During their development in the thymus, only T cells bearing receptors that would bind MHC molecules-foreign antigen complexes are permitted to survive.

which cell type involved in adaptive immunity express membrane receptors for antigens?

Memory

immune responses are characterized by _____.

Memory, diversity, and specificity

Which of the following statements about exercise and the immune system is true?

Moderate exercise results in a more effective immune system than a sedentary lifestyle.

Which of the following are utilized by both humoral and nonspecific immunity to attack antigens?

Phagocytosis and the complement system

which of the following is not a type of autoimmune disease

SCID

Which of the following produce(s) passive immunity?

The injection of antibodies, the passage of IgG antibodies across the placenta, and treatment of rabies with the injection of antibodies against the rabies virus

which of the following is a chemical barrier to pathogens

acid in the urinary test

Helper T cells directly or indirectly activate __________.

all answers are correct

In order for an organ or tissue transplant to be successful, __________.

all answers are correct

Molecules released during inflammation include __________.

all answers are correct

Sites where foreign particles and microorganisms can be trapped, and where they can be destroyed by lymphocytes and macrophages, include __________.

all answers are correct

The phenomenon of clonal selection can be illustrated by which of the following concepts?

all answers are correct

which of following statements about MHC molecules is true?

almost all body cells express class I MHC molecules

complement activation protection from infection by four different methods. Which of following is not mechanisms of complement activation?

antibody production by B cells

Put the events underlying inflammation in the correct order: a) Recruited leukocytes phagocytize the invaders. b) Local macrophages engulf foreign matter. c) Nearby capillaries dilate and become more permeable. d) Foreign matter is contained. e) Additional leukocytes migrate into the region.

b, c, d, e, a

Put the steps of phagocytosis in the appropriate order: a) exocytosis of bacterial debris b) degradation c) attachment d) internalization

c, d, b, a

Interleukins are cytokines that enhances the body's response to infection directly by several methods. Which of the following below is not an effect of interleukin release?

decrease body temperature

which of the following are phagocytes

eosinophils

which cell type induces cytotoxic T cells to kill?

helper T cells

Cytotoxic T cells __________.

kill target cells directly by inducing them to lyse, attack cells only after receiving a signal from a helper T cell and induce apoptosis in target cells

Autoimmune diseases include __________.

lupus, rheumatoid arthritis, and insulin-dependent diabetes mellitus

The actions of complement include __________.

lysis of bacteria, opsonization and binding to antibodies

During an allergic reaction __________.

mast cells are degranulated and histamine is released

The phenomenon of acquired immunity is due to the presence of ___________ cells.

memory

which of the following statements about exercise and the immune system is true?

moderate exercise result in a more effective immune system that does secondary lifestyle

which of the physical barriers can trap foreign matter and potential pathogens

mucus membrane

Molecules called interleukins enhance the body's response to infection directly by __________.

raising body temperature, inducing B and T cell proliferation and increasing neutrophil release from bone marrow

which of the functions of heparin release during a local inflammation response

the act as an anticoagulant

which of the following is an example of clonal selection?

the production of antibodies by B cells after exposure to a particulars viral flu strain

what is the function of histamine release during a local inflammation response?

the stimulate vasodilation and increased capillary pore permeability

what is a function of cytokine release a local inflammation response

to serve as a paracrine and autocrine messenger

which of the following scenarios produces passive immunity

treatment of rabies with the injection of rabies virus antibodies

A person with type B blood __________.

will possess antibodies to type A blood, although he or she has never been exposed to type A lood, can receive type O blood in a transfusion and can donate blood to someone with type AB blood


Set pelajaran terkait

10 KEY cosas favoritos-Question and answer pairs

View Set

The Great Gatsby Close Reading Questions | Chapters 1 - 3

View Set

Microeconomics Chapter 5 Study Guide

View Set

Pathophysiology of the stomach- exam 3

View Set