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