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32 notecards = 8 pages (4 cards per page)

Viewing:

Lymphatic System Mastering

front 1

What is the main function of the lymphatic system?

back 1

The lymphatic system returns leaked fluid and plasma proteins that escape from the bloodstream back to the blood.

front 2

Label the diagram:

right lymphatic duct

thoracic duct

cisterna chyli

collecting lymphatic vessels

cervical nodes

axillary nodes

inguinal nodes

back 2

front 3

What is the origin of lymph fluid?

back 3

Lymph is excess fluid formed from plasma that accumulates in the tissues as interstitial fluid.

front 4

once collected, where does lymph drain to?

back 4

the venous circulation

front 5

Adjacent cells in lymphatic capillaries overlap each other loosely. What is the unique structural modification that increases their permeability?

back 5

mini valves (let fluid in but not out)

front 6

What promotes closing of the mini valves accosted with lymph capillaries?

back 6

increasing pressure inside the lymph capillary.

front 7

are lymphatic capillaries permeable to proteins?

back 7

yes

front 8

does lymph travel to and from the heart?

back 8

no

front 9

from what regions of the body is lymph drained into the right lymphatic duct?

back 9

the right upper limb, right side of the head and thorax.

front 10

what are formed from the union of the largest collecting lymphatic vessels?

back 10

lymphatic trunks

front 11

what is the name of the enlarged sac that the lumbar trunks and intestinal trunk return lymph to?

back 11

cisterna chyli

front 12

where are the three large clusters of superficial lymph nodes?

back 12

the cervical region, axillary region, and inguinal region

front 13

true or false?

because lymph vessels are very low-pressure conduits, movements of adjacent tissues are important in propelling lymph through the lymphatics

back 13

true

front 14

true or false?

digested fats are absorbed from the intestine by the lymph capillaries

back 14

true

front 15

true or false?

lymphoid tissue is mainly reticular connective tissue

back 15

true

front 16

which lymph cells produce antibodies?

back 16

plasma cells ( activated B cells)

front 17

what is a role of lymph nodes

back 17

they filter lymph

front 18

what region of the lymph node contains follicles filled with dividing b cells?

back 18

the cortex

front 19

which lymphoid organ extracts aged and defective blood cells and platelets from the blood in addition to storing some of the breakdown products for later use?

back 19

the spleen

front 20

which part of the spleen is the site of immune function?

back 20

white pulp (contains reticular fibers with lymphocytes which cleans the blood and are an important part of immunological surveillance and response)

front 21

which lymphatic organ is organized with trabecular and compartments containing red and white pulp?

back 21

spleen

front 22

payer's patches are mucosa-associated lymph tissue located where?

back 22

in the wall of the small intestine

front 23

what is the function of bone marrow

back 23

form lymphocytes

front 24

what is the function of the spleen

back 24

to remove red blood cells

front 25

what is the function of the thymus

back 25

to mature t cells

front 26

true or false?

the thymus is the only lymphoid organ that does not directly fight antigens

back 26

true

front 27

when is the thymus most active

back 27

childhood

front 28

what is true about the thymus?

back 28

it functions strictly in t lymphocyte maturation

it doesn't fight antigens directly

its storm consists of epithelial tissue

front 29

what is true about lymphocytes

back 29

b cells produce plasma cells, which secrete antibodies into the blood.

front 30

primary lymphoid organ

back 30

thymus

front 31

what lymphoid cell traps antigens and transport them to lymph nodes?

back 31

dendritic cells

front 32

Which organ is not a secondary lymph organ?

back 32

thymus