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T1- Histology Midterm2 > hist. lympathic > Flashcards

hist. lympathic Flashcards

1
Q

The lymphatic system fxn primarily in the ___________ of the body

A

immune

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2
Q

The lymphatic system also contributes to phagocytic defense as part of the _________ system

A

reticuloendothelial system

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3
Q

The lymphatic system includes:

  1. _________ encapsulated
  2. _________ encapsultated
  3. _________ encapsultated
A
  1. Non- encapsultated
  2. Partially encapsultated
  3. Fully encapsulated
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4
Q

Give an example of non-encapsulated tissue

A

nodular & diffuse lymphatic tissue

Ex: appendix

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5
Q

Give an example of partial encapsulated lymphatic tissue

A

tonsils

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6
Q

Give an example of fully encapsulated lympathic tissue

A

lympathic organs : lymph node, spleen, thymus

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7
Q

_______ is made up of reticular tissue

A

stroma

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8
Q

_______ are composed of a collection of cells that occupy the meshes of reticular tissue

A

parenchyma

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9
Q 
Parenchymal components include some or all of the following :
A. 
B. 
C. 
D.
E.
A 
A. lymphocytes 
B. monocytes
C. Histiocytes 
D. PLasma 
E. lymph or blood sinusoids
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10
Q

Non-encapsulated lympathic tissue are present in mucous membranes of the ______ and ________ tracts

A

Digestive and respiratory tract

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11
Q

_______ encapsulated lymphatic tissue are located in the digestive and respiratory tract

A

non-encapsulated

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12
Q

The primary fxn of the lympathic system is immune diffense and __________ balance

A

fluid

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13
Q

Name the two main components of the lympathic tissue

A
  1. stroma

2. parenchyma

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14
Q

The outside of the reticular tissue that makes up the fibrous tissue is the ______

A

stroma

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15
Q

The actual fxn part of the lympatic system (organ)

A

parenchyma

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16
Q

________ center is the light center of a nodular lymphatic tissue

A

germinal center

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17
Q

The outer dark zone of a nodular lympathic tissue is called ______

A

cortex

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18
Q

A group of nodular non-encapsulated lymph nodules

A

peyer’s patches

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19
Q

________ lymphatic tissue occupies the space between nodules of lympathic tissue

A

diffues lymphatic tissue

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20
Q

Where are the two palatine tonsil?

A

The tonsils that we see when the doctor asks us to open our mouth in the back of the throat

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21
Q

Where is the one lingual tonsil?

A

on the tongue

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22
Q

Where is the one pharyngeal tonsil?

A

In the nasal cavity

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23
Q

The tonsils project under the mucus membrane to take coverage… The mucous membrane dips insid lympathic tissue of tonsils to form tubular invaginations called ________

A

tonsillar crypts

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24
Q

The surface epitheliumof mucous membrane is ______________ in palatine tonsils

A

stratified squamous non-keratinized

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25
Q

The tissue cells of goblet cells in pharyngeal tonsils are ____________ cell types

A

psuedo-stratified columnar ciliated

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26
Q

_______ separates the deep part of tonsils from underlying tissue

A

stroma

  • made of dense CT
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27
Q

The stroma send out prolongations called _______ into the tissue of tonsils

A

trabeculae

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28
Q

What (3) structures do the stroma contain

A
  1. blood vessels
  2. nerves
  3. draining lymphatics
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29
Q

_______ is made up of nodular and diffused L.T

A

parenchyma

30
Q

Is Efferent lymph going out/in the lymph node

31
Q

Is afferent lymph going out/ in the lymph node

32
Q

fully encapsulated lymphatic tissue includes which 3 lymph organs

A
  1. lymph nodes
  2. spleen
  3. thymus
33
Q

_____ is the structure on a lymph through which blood and lymphatic vessels enter and leave

34
Q

The light inner zone of a lymph node is called ________

35
Q

What are the three strucutures that make up the stroma

A
  1. capsule
  2. cortical and medullary trabeculae
  3. reticular tissue
36
Q

___________ are made of subcapsular, coritcal and medullary sinuses

A

Lymph sinuses

37
Q

Lymph is received into the lymph node through the _______________

A

subcapular sinuses

38
Q

In the lymph node:

Subcapsular sinuses –> ___________ sinuses –> medullary sinuses

A

cortical sinuses

39
Q

In the lymph node:

_______ sinuses–> cortical sinuses –> medullary sinuses –> efferent lymphatics

A

subcapusular sinuses

40
Q

subcapusular sinuses –> cortical sinuses –> ________ sinuses–> efferent lymphatics

41
Q

Lymph exits the lymph node through the _________ lymphatics –> efferent lymphatics

A

efferent lymphatics

42
Q

_________ regress after age of puberty and become fat. In the anterior mediastinum

43
Q

cytoreticulum are attached together by their processes called ______

A

epithelial-reticular cells

44
Q

epithelial- reticular cells attach _______ together by their processes

A

cytoreticulum

45
Q

2 fxn of the lympatic system

A
  1. immunity defense

2. phagocytic defense

46
Q

The surface epitheliumof mucous membrane is ______________ in lingual tonsils

A

stratified squamous non-kartatinized

47
Q

The ___ contains the blood vessels, nerves and draining lymphatics of the tonsils

48
Q

Where are fully encapsulated lymph nodes found

A

along lymph vessels

49
Q

The parenchyma cortex in thymus is mad up of densely packed small lymphocytes called ______

A

thymocytes (or T-lymphocytes)

50
Q

The hassall’s corpuscles (thymic corpuscles) are a characteristic of _______ of thymus

51
Q

______ is the largest lymphatic organ in the body

52
Q

What circulates in the spleens tissue ?

A

blood

instead of lymph- making it a hemal lymph node

53
Q

What is considered to have hemal lymph nodes

A

the spleen

54
Q

Name the three characteristic structures in the spleen parenchyma

A
  1. white pulp
  2. red pulp
  3. splenic sinuses
55
Q

Circulation of the blood in the spleen

A

splenic artery –> hilum –> trabecular arteries –> central arterioles –> peniculli –> splenic vessels are drained by pulp venules –> trabecular veins –> splenic veins

56
Q

The lymphatic system forms ______cytes and ____ cytes

A

lymphocytes and monocytes

57
Q

Plasma cells in the lymphatic system form _____

A

antibodies

58
Q

Name of the hormone of the thymus

59
Q

______ promotes development of immunologically competent lymphocytes

60
Q

The spleen acts as a reservoir of ______ cells that can be pushed into circulation

61
Q

_______ is a reservoir of blood cells that can be pushed into circulation

62
Q

Old RBC are destroyed in the ____ by its phagocytic cells

A

spleen

plays a role in hemoglobin metabolism

63
Q

The surface epitheliumof mucous membrane is ______________ in lingual tonsils

A

stratified squamous non-kartatinized

64
Q

The ___ contains the blood vessels, nerves and draining lymphatics of the tonsils

65
Q

Where are fully encapsulated lymph nodes found

A

along lymph vessels

66
Q

What is a unique feature of the spleen compared to the other lymph organs

A

central arterioles

in white pulp

67
Q

Are peyer’s patches non encapsulated or encapsulated lymphoid tissues?

A

peyer’s patches

68
Q

What type of cells are present in the germinal center of lymphoid nodules

A

lymphoblasts and prolymphocytes

in non encapsulated

69
Q

Hassall’s corpuscles are located where?

A

thymus

they are mainly lymphocytes and histiocytes
(made up of degenerating epithelial reticular cells)

70
Q

Which of the following lymphatic organs lacks reticular fibers

A

thymus

it has cytoreticulum instead

71
Q

Which of the lymphatic organs has blood sinusoids ?

72
Q

Which type of tonsil has a great number of neutrophil leukocytes in its lymphatic tissue

A

palatine tonsils

T1- Histology Midterm2 (6 decks)

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