Bio 26 Unit 2 Seatwork Lymphatic & immune systems

Question 1

Any substance capable of provoking an immune response

Answer 1

Antigen

Question 2

Small protein that binds with receptors on healthy cells to promote protein synthesis and prevent viruses from binding

Answer 2

Interferon

Question 3

Chemical secreted by white blood cells and macrophages to raise the body’s temperature

Answer 3

Pyrogen

Question 4

Chemical released by natural killer cells to cause cell lysis

Answer 4

Perforins

Question 5

Chemical released by macrophages and dendritic cells to activate many other immune cells

Answer 5

Cytokines

Question 6

Protein secreted by activated B cells in response to an antigen

Answer 6

Antibody

Question 7

Sticky substance in the respiratory and digestive passageways that trap microorganisms

Answer 7

Mucus

Question 8

May exist in the body for years and enable a quick response to subsequent meetings with the same antigen

Answer 8

Memory Cell

Question 9

Slows or stops B and T cell activity once infection has been conquered

Answer 9

Regulatory T cell

Question 10

Cell that produces huge numbers of the same antibody (immunoglobulin)

Answer 10

Plasma Cell

Question 11

Kills virus-infected cells, cancerous cells, and is involved in graft rejection

Answer 11

Cytotoxic T cell

Question 12

Engulfs and presents parts of antigens on the membrane for recognition by T cells bearing receptors for the same antigen

Answer 12

Antigen-presenting Cell (APC)

Question 13

Progeny (clone members) of this cell form plasma cells and memory cells

Answer 13

B cell

Question 14

Binds with a specific antigen presented by an antigen-presenting cell (APC)

Answer 14

Helper T cell

Question 15

What is the difference between primary and secondary humoral response?

Answer 15

Primary occurs during the first interaction with an antigen, secondary occurs after first contact and the immune system is better equipped

Question 16

What is the origin of lymph?

Answer 16

Interstitial fluid which forms where body tissue and capillaries exchange substance and is turned into lymph

Question 17

What is the pathway of lymph?

Answer 17

Lymphatic vessels—> Lymphatic trunks—> lymphatic ducts–> returned back to blood

Question 18

How are innate and adaptive immune systems different?

Answer 18

Innate activates due to chemicals within the antigen and is naturally occurring in the body

Adaptive immunity is created once an antigen is encountered

Question 19

What are the four most common indicators of an acute inflammatory response?

Answer 19

Heat
Swelling
Redness
pain