Anatomy Immmune

Question 1

what is the immune system

Answer 1

cells, tissues, and organs, that protects body against microbes (bacteria, fungi, and parasites.)
viruses= not living

Question 2

self and non self moelcules

Answer 2

key to healthy= be able to tell between self and non self cells

Question 3

self cell

Answer 3

has identifier

Question 4

non self

Answer 4

doesnt recongize= attack

Question 5

antigen

Answer 5

tiggers immune response

why tissue transplants may be rejected

Question 6

autoimmune disesase

Answer 6

body attacks itself when it mistakes its cells for antigens

allergn= allergy

Question 7

structures

Answer 7

lympatic- home to lympocytes (white blood cells)

includes- thymus, spleen, tonsils, lymph nodes

Question 8

bone marrow

Answer 8

makes blood cells

Question 9

lymphocytes

Answer 9

t lympocytes or t- cells mature in the thymus and migrate to other tissue

Question 10

neutrophils

Answer 10

defend against bacteria and fungi

Question 11

basophils

Answer 11

allergic and allergen response

Question 12

eosinophils

Answer 12

parasitic and allergy

Question 13

Lymphocytes

Answer 13

• circulate in blood and lymph
• found in spleen, thymus, bone marrow,lymph nodes, tonsils, and liver
• provide immunity against antigens through humoral immunity and cell mediated immunity
• humoral is identifying antigens prior to cell infection
• cell mediated is active destruction of infected or cancerous cells

Question 14

Types of lymphocytes

Answer 14

T-cells b-cells and natural killer cells, b and t lymphocytes critical for specific immune responses

Question 15

B cells

Answer 15

See certain antigen they create antibodies which are critical to humoral immunity because they travel through the body and fight specific antigens

Question 16

T cells

Answer 16

Help in cell mediated immunity because they have T cells receptors that are in cell membrane and recognize different types of anti gens, three types cytotoxic helper and regulatory

Question 17

Types of T cells

Answer 17

• Cytotoxic get rid of cells by lysing them
• helper help B cells make antibodies and make substances to activate other t cells
• regulatory/ suppressor suppress b and T cell response to antigens

Question 18

Natural killer cells

Answer 18

Like cytotoxic T cells but not specific they attach to cells and if the cells activates to many of its receptors the killing mechanism turns off, it also contains granules with chemicals that break down cancerous cells, they can also force cells to die if infected

Question 19

Memory cells

Answer 19

Some t and B cells become these they live in lymph nodes and spleen last the persons life time and if enough are produced then they can give immunity because if the antigen is encountered again they react by producing antibodies more quickly for a longer period of time

Question 20

AIDS stands for?

Answer 20

Acquired immune deficiency syndrome (caused by HIV)

Question 21

HIV stands for?

Answer 21

human immunodeficiency virus

Question 22

spread by?

Answer 22

• body fluid (sex and blood)

- people get HIV and then develop AIDS the resulting infections lead to death

Question 23

T-cell specifics

Answer 23

• CD4; “helper cells” initiate bodies response to infection; HIV infects these cells to replicate, immune system becomes weaker making it easier to get infected
• CD8; NKC fight dance and viruses and create antibodies

Question 24

HIV and AIDS

Answer 24

weaken immune system