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BCR 1 > Anatomy - Practical 09: Lymphoreticular Microanatomy > Flashcards

Anatomy - Practical 09: Lymphoreticular Microanatomy Flashcards

1
Q

where do lymphoctes, proliferate, differentiate and mature?

a. blood
b. spleen
c. lymphatic tissues

A

c.lymphatic tissues

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2
Q

what happens to lymphocytes in the bone marrow. MALT and thymus?

a. proliferate
b. differentiate
c. programmed
d. mature

A

c.programmed

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3
Q

which of these groups make up the secondary tissues and organs

a. bone marrow and thymus
b. lymph nodes, spleen, mucosa associated lymphoid tissue

A

b.lymph nodes, spleen, mucosa associated lymphoid tissue

peripheral structures that maintain mature but naive lymphocytes and initiate and immune response

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4
Q

which of these groups make up the primary tissues and organs

a. bone marrow and thymus
b. lymph nodes, spleen, mucosa associated lymphoid tissue

A

a.bone marrow and thymus

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5
Q

which cells release cytokines in response to an antigen

a. t lymphoytes
b. cytotoxic t cells
c. specific t killer cells

A

a.t lymphoytes

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6
Q

which cells are produced in the thymus?

a. t lymphocyte
b. b lymphocyte
c. immunoblast

A

a.t lymphocyte

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7
Q

what causes transformation of lymphocytes into immunoblasts?

a. cytokines
b. foreign pathogen
c. antigens
d. antigen presenting cells

A

d.antigen presenting cells

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8
Q

which of these is the function of t helper cells?

a. help activate B and cytotoxic t cells
b. can functionally surpress immune response to foreign and self antigens to prevent autoimmune disease
c. kill target cells such as virus infected /cancer transformed/parasites/transformed cells

A

a.help activate B and cytotoxic t cells

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9
Q

which of these is the function of t surpressor cells?

a. help activate B and cytotoxic t cells
b. can functionally surpress immune response to foreign and self antigens to prevent autoimmune disease
c. kill target cells such as virus infected /cancer transformed/parasites/transformed cells

A

b.can functionally surpress immune response to foreign and self antigens to prevent autoimmune disease

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10
Q

which of these is the function of t killer cells?

a. help activate B and cytotoxic t cells
b. can functionally surpress immune response to foreign and self antigens to prevent autoimmune disease
c. kill target cells such as virus infected /cancer transformed/parasites/transformed cells

A

c.kill target cells such as virus infected /cancer transformed/parasites/transformed cells

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11
Q

what is the role of reticular cells?

a. secrete type 3 collagen and ground substance , forms an intricate network for immune cells to reside in
b. specific to the thymus, assist with t lymphocte education
c. antigen presenting cells, monitor environment for foreign substances
d. work as APCs and phagocytes

A

a.secrete type 3 collagen and ground substance , forms an intricate network for immune cells to reside in

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12
Q

what is the role of epithelioreticular cells?

a. secrete type 3 collagen and ground substance , forms an intricate network for immune cells to reside in
b. specific to the thymus, assist with t lymphocte education
c. antigen presenting cells, monitor environment for foreign substances
d. work as APCs and phagocytes

A

b. specific to the thymus, assist with t lymphocte education

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13
Q

what is the role of dendritic cells?

a. secrete type 3 collagen and ground substance , forms an intricate network for immune cells to reside in
b. specific to the thymus, assist with t lymphocte education
c. antigen presenting cells, monitor environment for foreign substances
d. work as APCs and phagocytes

A

c.antigen presenting cells, monitor environment for foreign substances

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14
Q

what is the role of macrophage cells?

a. secrete type 3 collagen and ground substance , forms an intricate network for immune cells to reside in
b. specific to the thymus, assist with t lymphocte education
c. antigen presenting cells, monitor environment for foreign substances
d. work as APCs and phagocytes

A

d.work as APCs and phagocytes

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15
Q

what has a spherical accumulation of lymphocytes with a pale staining germinal centre and dark stained outer corona?

a. thymus
b. lymphoid follice
c. hassals corpuscles
d. lymph nodes

A

b.lymphoid follice

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16
Q

what does the pale staining germinal centre of the lymphoid follice contain?

a. activated b immunoblasts
b. small transient b lymphocytes

A

a.activated b immunoblasts

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17
Q

what does the dark staining outer corona of the lymphoid follice contain?

a. activated b immunoblasts
b. small transient b lymphocytes

A

b.small transient b lymphocytes

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18
Q

what does the dark staining outer corona of the lymphoid follice contain?

a. activated b immunoblasts
b. small transient b lymphocytes

A

b.small transient b lymphocytes

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19
Q

lymphoid follices are found in all lymphoid organs except ..

a. MALT
b. bone marrow
c. thymus

A

c.thymus

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20
Q

what cells are produced in the thymus?

a. b cells
b. t cells

A

b.t cells

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21
Q

the thymus is functional from birth until what stage, when it is replaced by adipose tissue?

a. childhood
b. puberty
c. aldulthood
d. old age

A

b.puberty

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22
Q

the thymus is divided into ……. by septa and CY capsule?

a. chambers
b. sections
c. lobes
d. lobules

A

d.lobules

23
Q

in the thymus t lymphocytes are kept in a meshwork of what?

a. fibrin
b. reticular cells
c. epithelioreticular cells
d. collagen

A

c.epithelioreticular cells

24
Q

what does the dark staining cortex of the thymus contain?

a. naive t lymphocytes and macrophages
b. maturing t lymphocytes , hassals corpuscles and immunocompetent t lymphocytes

A

a.naive t lymphocytes and macrophages

25
Q

what does the light staining medulla of the thymus contain?

a. naive t lymphocytes and macrophages
b. maturing t lymphocytes , hassals corpuscles and immunocompetent t lymphocytes

A

b.maturing t lymphocytes , hassals corpuscles and immunocompetent t lymphocytes

26
Q

what are the macrophages in the cortex of the thymus responsible for phagocytosis of?

a. foreign cells
b. immautre t lymphocytes
c. t lymphocytes not fulfilling the thymic education requirement

A

c.t lymphocytes not fulfilling the thymic education requirement

27
Q

which part of the thymus is light staining?

a. cortex
b. medulla

A

b.medulla

28
Q

in which part of the thymus do t lymphocytes undergo an assessment of immunocompetence?

a. cortex
b. medulla

A

b.medulla

29
Q

where do immunocompetent t cells go from the medulla of the thymus?

a. cortex
b. blood
c. lymph

A

b.blood

30
Q

what is found only in the medulla of the thymus?

a. lymphoid follice
b. macrophages
c. hassalls corpuscles

A

c.hassalls corpuscles

31
Q

concentrically arranged flattened epithelioreticular cells producing keratohylin are found in which structure

a. hassals corpuscles
b. thymus
c. lymphoid follice

A

a.hassals corpuscles

32
Q

what cell type makes up hassals corpuscles?

a. reticulr
b. epithelioreticular
c. macrophages

A

b.epithelioreticular

33
Q

the blood thymus barrier is composed on continuous endothelium of blood capillaries, thick basal lamina, epithelioreticular cells and which other cell type?

a. monocytes
b. macrophages
c. b lymphocytes
d. t lymphocytes

A

b.macrophages

34
Q

which organ is kidney shaped and encapsulated ranging from 1mm to 2 cm

a. spleen
b. thymus
c. lymph nodes

A

c.lymph nodes

35
Q

which organ deals with lymph borne antigens?

a. spleen
b. thymus
c. lymph nodes

A

c.lymph nodes

36
Q

where do afferent lymphatic vessels enter the lymph nodes?

a. dense ct capsule with trabeculae
b. outer curved boundary
c. hilum

A

b.outer curved boundary

37
Q

where do efferent lymphatic vessels enter the lymph nodes?

a. dense ct capsule with trabeculae
b. outer curved boundary
c. hilum

A

c.hilum

38
Q

which part of the lymph node is made up of the subscapular and trabecular sinuses, reticular cell, dendritic and macrophage meshwork and follicles of b lymphocytes?

a. outer cortex
b. inner cortex
c. medulla

A

a.outer cortex

39
Q

what part of the lymph node us made up of mostly t lymphocytes?

a. outer cortex
b. inner cortex
c. medulla

A

b.inner cortex

40
Q

which part of the lymph node is made up of medullary cords, medullary sinuses and dendritic and macrophage cells?

a. outer cortex
b. inner cortex
c. medulla

A

c.medulla

41
Q

which organ detects and responds to blood borne antigen?

a. thymus
b. spleen
c. lymph node

A

b.spleen

42
Q

what organ filters the blood and destroys worn out rbc?

a. thymus
b. spleen
c. lymph node

A

b.spleen

43
Q

what forms the site of passage for the splenic artery , vein and lymphatic vessels?

a. hilum
b. dense ct capsule
c. trabeculae

A

a.hilum

44
Q

splenic pulp does not contain which of these elements?

a. reticular tissue
b. b and t lymphocytes
c. macrophages
d. dendritic cells
e. monocytes

A

e. monocytes

45
Q

the periarterial lymphoid sheath contains what cells arranged around a central artery?

a. b lymphocytes
b. t lymphocytes
c. dendritic cells
d. macrophages

A

b. t lymphocytes

46
Q

the periarterial lymphoid sheath and lymphoid follicles make up which part of the spleen?

a. white pulp
b. red pulp

A

a.white pulp

47
Q

what cells make up the lymphoid follicles

a. t lymphocytes
b. b lymphocytes

A

b. b lymphocytes

48
Q

Which cells are initially activated by APCs in the spleen?

a. t lymphocytes
b. b lymphocytes

A

a. t lymphocytes

49
Q

which part of the spleen is made up of the tissues rich in blood sinusoids with elongated reticular tissue and wbc

a. white pulp
b. red pulp

A

b. red pulp

50
Q

what type of blood sinusoids are present in the red pulp?

a. continuous
b. discontinuous
c. fenestrated

A

c.fenestrated

51
Q

Bilroths cords containing reticular cells and fibres are found in which organs

a. spleen
b. lymph nodes
c. thymus

A

a.spleen

52
Q

what is found deep to the epithelium in the lamina propria to make up the MALT?

a. lamina propria
b. hassals corpuscles
c. red pulp

A

a. lamina propria

53
Q

what epithelium lines the tonsils?

a.ssk
b.sc
c,pscc

A

c,pscc

54
Q

what epithelium lines the palatine and lingual tonsils?

a.ssk
b.sc
c,pscc
d.ssnk

A

d.ssnk

BCR 1 (60 decks)

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