hist. lympathic Flashcards

(72 cards)

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
The tissue cells of goblet cells in pharyngeal tonsils are ____________ cell types
psuedo-stratified columnar ciliated
26
_______ separates the deep part of tonsils from underlying tissue
stroma - made of dense CT
27
The stroma send out prolongations called _______ into the tissue of tonsils
trabeculae
28
What (3) structures do the stroma contain
1. blood vessels 2. nerves 3. draining lymphatics
29
_______ is made up of nodular and diffused L.T
parenchyma
30
Is Efferent lymph going out/in the lymph node
Out
31
Is afferent lymph going out/ in the lymph node
in
32
fully encapsulated lymphatic tissue includes which 3 lymph organs
1. lymph nodes 2. spleen 3. thymus
33
_____ is the structure on a lymph through which blood and lymphatic vessels enter and leave
hilum
34
The light inner zone of a lymph node is called ________
medulla
35
What are the three strucutures that make up the stroma
1. capsule 2. cortical and medullary trabeculae 3. reticular tissue
36
___________ are made of subcapsular, coritcal and medullary sinuses
Lymph sinuses
37
Lymph is received into the lymph node through the _______________
subcapular sinuses
38
In the lymph node: | Subcapsular sinuses --> ___________ sinuses --> medullary sinuses
cortical sinuses
39
In the lymph node: | _______ sinuses--> cortical sinuses --> medullary sinuses --> efferent lymphatics
subcapusular sinuses
40
subcapusular sinuses --> cortical sinuses --> ________ sinuses--> efferent lymphatics
medullary
41
Lymph exits the lymph node through the _________ lymphatics --> efferent lymphatics
efferent lymphatics
42
_________ regress after age of puberty and become fat. In the anterior mediastinum
thymus
43
cytoreticulum are attached together by their processes called ______
epithelial-reticular cells
44
epithelial- reticular cells attach _______ together by their processes
cytoreticulum
45
2 fxn of the lympatic system
1. immunity defense | 2. phagocytic defense
46
The surface epitheliumof mucous membrane is ______________ in lingual tonsils
stratified squamous non-kartatinized
47
The ___ contains the blood vessels, nerves and draining lymphatics of the tonsils
stroma
48
Where are fully encapsulated lymph nodes found
along lymph vessels
49
The parenchyma cortex in thymus is mad up of densely packed small lymphocytes called ______
thymocytes (or T-lymphocytes)
50
The hassall's corpuscles (thymic corpuscles) are a characteristic of _______ of thymus
medulla
51
______ is the largest lymphatic organ in the body
spleen
52
What circulates in the spleens tissue ?
blood | instead of lymph- making it a hemal lymph node
53
What is considered to have hemal lymph nodes
the spleen
54
Name the three characteristic structures in the spleen parenchyma
1. white pulp 2. red pulp 3. splenic sinuses
55
Circulation of the blood in the spleen
splenic artery --> hilum --> trabecular arteries --> central arterioles --> peniculli --> splenic vessels are drained by pulp venules --> trabecular veins --> splenic veins
56
The lymphatic system forms ______cytes and ____ cytes
lymphocytes and monocytes
57
Plasma cells in the lymphatic system form _____
antibodies
58
Name of the hormone of the thymus
thymosin
59
______ promotes development of immunologically competent lymphocytes
thymosin
60
The spleen acts as a reservoir of ______ cells that can be pushed into circulation
blood
61
_______ is a reservoir of blood cells that can be pushed into circulation
spleen
62
Old RBC are destroyed in the ____ by its phagocytic cells
spleen | plays a role in hemoglobin metabolism
63
The surface epitheliumof mucous membrane is ______________ in lingual tonsils
stratified squamous non-kartatinized
64
The ___ contains the blood vessels, nerves and draining lymphatics of the tonsils
stroma
65
Where are fully encapsulated lymph nodes found
along lymph vessels
66
What is a unique feature of the spleen compared to the other lymph organs
central arterioles | in white pulp
67
Are peyer's patches non encapsulated or encapsulated lymphoid tissues?
peyer's patches
68
What type of cells are present in the germinal center of lymphoid nodules
lymphoblasts and prolymphocytes | in non encapsulated
69
Hassall's corpuscles are located where?
thymus | they are mainly lymphocytes and histiocytes (made up of degenerating epithelial reticular cells)
70
Which of the following lymphatic organs lacks reticular fibers
thymus | it has cytoreticulum instead
71
Which of the lymphatic organs has blood sinusoids ?
spleen
72
Which type of tonsil has a great number of neutrophil leukocytes in its lymphatic tissue
palatine tonsils