A+P Exam 3: Lymphatic System

Front 1

What are the two parts of the lymphatic system?

Back 1

lymphatic vessels
lymphatic tissues and organs

Front 2

these part of the system transports escaped blood fluids back to the blood

Back 2

vessels

Front 3

these part of the system houses phagocytic cells and lymphocytes

Back 3

organs

Front 4

lymphatic vessels are drainage vessels that return _____ interstitial fluid to the blood

Back 4

3 L

Front 5

the fluid in the the vessels is called:

Back 5

lymph

Front 6

lymph vessels are very ______ with overlapping endothelial cells

Back 6

permeable

Front 7

the endothelial cells and the collagen filaments help prevent what?

Back 7

vessels from collapsing from pressure

Front 8

lacteals are what? where are they found? and what is their role?

Back 8

specialized lymphatic capillaries
present in villi of intestines
absorb fat

Front 9

fatty lymph is called?

Back 9

chyle-its delievered to the blood stream

Front 10

the flow of lymph?

Back 10

lymphatic capillaries, collecting vessels, trunks, ducts (largest)

Front 11

the collecting ducts have ___ tunics similiar to veins but are much _________, have more ____

Back 11

3
thinner
valves

Front 12

how many lymph ducts? what are they?

Back 12

2
right
thoracic (larger)

Front 13

this duct drains lymph from the right side of head and thorax and arm

Back 13

right duct

Front 14

this duct drains lymph from body and is formed from enlarged sac cisterna chyli

Back 14

thoracic duct

Front 15

this sac collects lymph from the lumbar trunks and the intestinal trunk

Back 15

cisterna chyli

Front 16

each duct empties its lymph into the venous circulation at junction of these two veins?

Back 16

internal jugular vein
subclavin vein

Front 17

the lymph transport has no ____ instead is uses your ____ and ____ muscles, and ____ as in your veins

Back 17

pump
skeletal
respiratory
valves

Front 18

the transport of lymph is _____ and _____

Back 18

sporadic
slow

Front 19

this structure clusters along lymphatic vessels where they merge to form trunks

Back 19

lymph nodes

Front 20

what are the 2 functions of lymph nodes?

Back 20

1) filter microorganisms and debris
2) activate the immune system (lymphocytes in nodes monitor for antigens)

Front 21

each node is surrounded by a dense fibrous capsule of _________ called:

Back 21

connective tissue

Front 22

strands of connective tissue that extend inward, dividing the node into compartments is called:

Back 22

trabeculae

Front 23

these cortex of the node houses T cells temporarily as they circulate between the blood, lymph nodes and lymph

Back 23

outer

Front 24

this cortex is much thinner and the tissue forms extensions and contains T and B cells

Back 24

medullary cords

Front 25

this is a channel where recticular fibers are crisscrossed and house macrophages as lymph flows through macrophages digest foreign matter, cleaning lymph

Back 25

lymph sinus

Front 26

lymph flow through nodes:

Back 26

afferent vessels, subcapsular sinus, smaller sinuses in cortex and medulla, hilus, efferent vessels, blood

Front 27

lymphoid tissue consist of:

Back 27

reticular connective tissue

Front 28

functions of lymphoid tissue:

Back 28

proliferation site for lymphocytes
ideal surveillance pt for lymphocytes and macrophages

Front 29

these live on the reticular fibers? these circulate between blood system and reticular tissue?

Back 29

macrophages
lymphoctyes

Front 30

what are some lymphoid organs?

Back 30

spleen
tonsils
thymus
lymph nodes

Front 31

this organ is the largest lymphoid organ? and is the site for lymphocyte proliferation, immune surveillance and response and cleans blood

Back 31

spleen

Front 32

the spleen has an outer fibrous capsule and has two pulp. this pulp contains lymphocytes and is found around splenic arteries.
this pulp is the rest of the tissue and is involved in disposal of debris

Back 32

white
red

Front 33

if your spleen is removed what takes over?

Back 33

liver and bone marrow

Front 34

this is an organ found in the lower neck, mainly active in childhood

Back 34

thymus

Front 35

the thymus has two parts outer cortex and inner medulla. this part is densely packed and divides T-lymphocytes. this part has fewer lymphocytes and has Hassall's Corpuscles which is areas of degenerating cells function unknown

Back 35

outer cortex
inner medulla

Front 36

the functions of the tymus is:

Back 36

t-lymph maturation-doesn not directly fight antigens
stroma-is thymocytes that secrete hormones thymosin and thymopoietin

Front 37

we have 4 pairs of these, its the simplest organ

Back 37

tonsils

Front 38

this tonsil is easiest to see, posterior oral cavity, largest and most often infected

Back 38

palantine

Front 39

this tonsil is found at the base of the tongue

Back 39

linguinal tonsil

Front 40

this tonsil is found at the posterior wall of nasopharnyx (adenoids)

Back 40

pharyngeal tonsil

Front 41

this if found in the s. intestines

Back 41

peyers patch