BIO 109 Chapter 9 - Immune System

disease caused by HIV infection; results in irreparable damage to the immune system

AIDS

2 types of lymphocytes:

B and T cells

____ mature in bone marrow

B cells

_____ are cell surface markers that identify a cell as "self"

MHC proteins

inherited disorder characterized by insufficient numbers of lymphocytes to fight an infection

SCID (severe combined immunodeficiency disease)

____ mature in the thymus gland

T cells

a specific antibody will bind to _____

a specific antigen

any substance that produces an inappropriate response to the immune system

allergen

inappropriate response to a nonpathogenic substance

allergy

life threatening allergic reaction which results in difficulty in breathing, fall in blood pressure, severe stomach cramps

anaphylactic shock

occur when the immune system fails to recognize "self" cells

autoimmune disorders

antibiotics are used for treatment of infections caused by

bacteria

single celled organisms that do not have a nucleus or membrane-bound organelles

bacteria

skin is able to prevent most microorganisms from entering the body by:

having keratin in the upper layer

processes that help combat infection

inflammation, fever, antibody production

autoimmune disorder affecting connective tissue

lupus (erythematosus)

filters microorganisms and cellular debris from lymph

lymph nodes

transports lymph in the body

lymphatic vessel

mechanisms involving the defense against any foreign cell, chemical/toxin, or protein

nonspecific defense

disease causing organism

pathogen

misfolded form of a normal brain cell protein

prion

autoimmune disorder affecting the synovial membrane of the joints

rheumatoid arthritis

body fluid that does not transmit HIV from human to human

saliva

mechanisms involving the production of antibodies and T cells - attack a certain pathogen

specific defense

the immune system has ____ and _____ defense mechanisms

specific; non specific

removes microorganisms and old RBC from the blood

spleen

secretes hormones important in the maturation of T cells

thymus

filters out microorganisms that enter the throat by food or air

tonsils

____ contains antigens of the pathogen

vaccines

require host cell to reproduce - extremely small infectious agents

viruses