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BIOL G220 Unit 4 Lecture Exam Review D
Test Description: Lecture day 23 material: lymphatic
Instructions: Answer all questions to get your test result.
1) one of the main functions of the lymphatic system is to
A
allow for development of red blood cells
B
return interstitial fluid to the circulatory system
C
store excess fluid until it can be processed by the kidneys
D
maintain osmotic balance in the blood by sequestering salts
2) the other main function of the lymphatic system is
A
to convey wastes from the body to the kidneys
B
to provide immunity
C
to balance the output of red bone marrow
D
to maintain hematocrit
3) the lymphatic system also has digestive aspect, transporting large molecules, especially_____, from the GI tract to the bloodstream
A
lipids
B
nucleic acids
C
carbohydrates
D
proteins
4) lymph is a fluid that accumulates________ in addition to fluid from the tissues and lipids from the digestive system
A
crystals of uric acid that would otherwise accumulate in the kidney as stones
B
crystals of bilirubin that would otherwise accumulate in the gall bladder as stones
C
foreign cells and viruses that are potential pathogens, plus cancer cells
D
calcium/ calmodulin complexed generated by bone regeneration
5) unlike veins and arteries, lymph vessels have ______, because they _______
A
terminal ends, flow one way instead of circulating
B
4 layers, because they intake fluid in bulk
C
apical stem cells, can regenerate themselves
D
circumfrential sphincters, need to shut down the flow totally sometimes.
6) the endothelial cells in the outer layer of lymph capillaries allows interstitial fluid in but not out with cells that
A
overlap
B
expand as they absorb fluid
C
lack tight junctions
D
have multiple pores in them
7) lymphatic capillaries feed into lymphatic _____, then lymphatic trunks, and finally into lymphatic ____ to re-enter the bloodstream at the subclavian arteries
A
vassals, ducks
B
lyphioles, veins
C
vessels, ducts
D
tubules, junctions
8) like veins, lymph vessels have 3 _____ and contain _____
A
tunics, valves
B
types, fluid under pressure
C
isoforms, anastomoses
D
tunics, circumfrential sphincters
9) in the villi of of the small intestine are special lymph vessels called
A
vilivessels
B
lacteals
C
nodules
D
chylesomes
10) _________ lymph vessels transport lymph toward lymph nodes, and ______ lymph vessels transport lymph away from lymph nodes
A
affluent, effluent
B
venous, arterial
C
interlymph, extralymph
D
afferent, efferent
11) the lymphatic system has a few tissue-level structures of note: these are distinct from the lymphatic organs as they lack a
A
blood supply
B
sufficient variety of cells
C
capsule
D
any real purpose
12) the fundamental sub-organ lymph tissue is organized into clusters of cells called
A
lymph plexus
B
lymph ganglia
C
lymph laminae
D
lymph nodules
13) M.A.L.T. stands for
A
Multiply Aggregated Lymphatic Tissue
B
Mucus Associated Lymphatic Tissue
C
Massively Acclimated Lymphatic Tissue
D
Minutely Aberrant Lymphatic Tissue
14) the third special 'tissue' structure in the Lymphatic system, which is found in the pharynx and has a partial capsule are the
A
thyroids
B
tonsils
C
thymus
D
thalamus
15) of the three encapsulated organs of the lymphatic system, one of them serves as the site for maturation of a specific class of lymphocytes; it is the
A
thalamus
B
thyroids
C
trabeculus
D
thymus
16) the most prevalent organs of the lymphatic system are the encapsulated _______ ____, where lymph is screened by collections of lymphocytes
A
lymph nuisances
B
lymph nodules
C
lymph nacensces
D
lymph nodes
17) the organ that screens blood for antigens using groups of lymphocytes is the _____
A
pancreas
B
liver
C
spleen
D
kidney
18) ________ t-lymphocytes activate immune response by presenting antigens and secreting cytokines, while ______ T lymphocytes kill cells or induce apoptosis
A
Primary, Secondary
B
Activator, Inhibitor
C
Agranulocytic, Granulocytic
D
Helper, Cytotoxic
19) B- lymphocytes respond to cytokines by dividing into plasma cells that release ______, while some remain in the circulation for years, earning them the name '________ ______'
A
neurotransmitters, latent cells
B
antigens, transient cells
C
acetylcholinesterase, resident cells
D
antibodies, memory cells
20) monocytes can transform into ___________, literally '_____________', which consume foreign cells whole
A
cytokinetopores, 'cell moving holes'
B
macrophages, 'big eaters'
C
polygastrosomes, 'many stomach bodies'
D
apoptotogens, 'cell-death causative agents'
*select an answer for all questions
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