Quiz 2

Question 1

lymphatic vessels consist of a clear colorless fluid known as

Answer 1

lymph ( used to be plasma)

Question 2

the purpose of lymphatic vessels is to

Answer 2

transport lymph

Question 3

a network of organs and vein like vessels that recover fluid are

Answer 3

lymphatic vessels

Question 4

what are lymphatic capillaries?

Answer 4

ends of lymphatic vessels that allow fluid to enter

Question 5

what is the purpose of lacteals

Answer 5

they absorb dietary lipids that aren’t absorbed by the blood capillaries in lipid absorption

Question 6

lacteals appear

Answer 6

white and milky

Question 7

how much intersitial fluid is recovered from the lymphatic vessels?

Answer 7

15% water and half of plasma proteins, half of total blood volume

Question 8

blood capillaries reabsorb

Answer 8

85%

Question 9

lymph has less ___ than plasma

Answer 9

protein

Question 10

Forces that help lymph go to the heart include

Answer 10

skeletal muscle pump, arterial pulsation, thoracic pump, valves, blood flowing to subclavian veins, exercise

Question 11

collecting ducts are the ___ lymphatic vessels and empty to ___

Answer 11

largest; subclavian veins

Question 12

what are the lymphatic vessels?

Answer 12

lumbar, jugular, subclavian, bronchomediastinal

Question 13

which blood cells attack parasites?

Answer 13

eosinophils

Question 14

which cells use respiratory burst to produce bleach ( sodium hydroxide)

Answer 14

neutrophils

Question 15

which cells are involved in immune surveillance

Answer 15

T cells, B cells, NK cells, antigen presenting cells ( macrophages and dendritic cells)

Question 16

which cells release perforin ( proteins) ?

Answer 16

natural killer cells

Question 17

what are different types of lymphatic organs?

Answer 17

thymus, bone marrow ( primary) lymph nodes, tonsils, spleen ( secondary)

Question 18

what type of lymphatic tissues are found in distal intestine?

Answer 18

aggregated lymphoid nodules

Question 19

where do T cells mature?

Answer 19

thymus

Question 20

what does involution mean?

Answer 20

bigger as an infant and smaller with age

Question 21

how does involution effect the thymus?

Answer 21

the thymus gets smaller with age

Question 22

antimicrobial protiens are

Answer 22

proteins that inhibit microbial reproduction and provide short term, innate immunity to pathogenic bacteria and viruses

Question 23

what are pyrogens

Answer 23

Fever inducing proteins

Question 24

what are the signs of inflammations

Answer 24

redness, swelling, heat, pain

Question 25

how does cellular immunity work ?

Answer 25

lymphocytes directly attack and destroy foreign cells or diseased host cells
body rid of pathogens in human cells
kills cells that harbor pathogens

Question 26

what are different types of lymphatic tissues?

Answer 26

lymphoid: aggregations of lymphocytes in connective tissues of mucous membranes
lymphatic nodules: dense masses of lymphocytes and macrophages that congregate in response to pathogens

Question 27

how do helper T cells recognize antigens?

Answer 27

cortical epithelial cells release chemicals that stimulate maturing T cells to develop surface antigen receptors

Question 28

what cells make antibodies ?

Answer 28

B cells

Question 29

two families of antimicrobial proteins

Answer 29

interferons ( released by cells w viruses)
complement system ( 30+ proteins that wait for communication and activate with pathogens )

Question 30

This type of immunity is the production of one’s own antibodies in response to infection or natural exposure to an antigen

Answer 30

Natural active immunity

Question 31

Artificial exposure to an antigen to make antibodies

Answer 31

Artificial active immunity

Question 32

Temporary immunity in result from antibodies produced by another person

Answer 32

Natural passive immunity

Question 33

Temporary immunity in response to an injection of immune serum from another person or animal

Answer 33

Artificial passive immunity