lymphatic system Flashcards

(47 cards)

1
Q

Hassall´s corpuscles are found in the cortex of the Thymus

A

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2
Q

Hassall´s corpuscles are located in the medulla of the Thymus

A

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3
Q

Hassall´s corpuscles are located in the medulla of the Thymus

A

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4
Q

Epithelial reticular cells form a supporting network of developing (=immature) Tlymphocytes in the Cortex of Th

A

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5
Q

Epithelial reticular cells of thymus together with the endothelium of cortical capillaries
form a blood-thymus barrier

A

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6
Q

Reticuloepithelial cells form the inner stroma of thymus

A

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7
Q

Fibrous septa divide the parenchyma of thymus into incomplete lobules

A

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8
Q

The medulla of Thymus does NOT contain any mature T-lymphocytes

A

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9
Q

The medulla of Thymus appears lighter than cortex using HE-staining

A

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10
Q

Thymus contains many lymphoid nodules

A

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10
Q

Medulla of lymph node contains also the lymphoid nodules

A

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11
Q

Medulla of Lymph node consists of sinusoids and cords of Billroth

A

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12
Q

Medullary cords of the lymph node are composed of the reticular epithelium and
lymphocytes

A

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13
Q

The cortex of lymph nodes contain mainly structures with a predominance of Blymphocytes

A

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14
Q

The cortex of lymph nodes contains mainly lymph nodules and reticular ligament

A

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15
Q

Both cortex and paracortex of the lymph node are composed of lymphoid nodules
containing predominantly B-Lymphocytes

A

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16
Q

T-lymphocytes and no B-lymphocytes are found in the paracortex of Lymph node

A

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17
Q

A lymph node paracortex comprises T-cells, macrophages and dendritic cells

A

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17
Q

Paracortex of lymph node contains high endothelial venules (HEV) and is T-dependent
zone

18
Q

Lymph race flows inside the lymph node through the system of cortical and medullar
sinuses

19
Q

Lymph flows inside the lymph node through a system of cortical and medullary sinuses

20
Q

The lymph node is covered by a capsule containing predominantly type I collagen

21
Q

The lymph node stroma is formed by the reticulum epithelium

22
Q

Lymph nodules in all secondary lymphatic organs are also referred to as Malpighi´s bodies

23
The internal fine stroma of the lymph node is formed by both reticular cells and reticular fibres
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24
Lymphoid nodules are found in the appendix, lymph node, spleen and palatine tonsil
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24
Primary lymphoid nodule comprises pale stained germinal centre as a result of B-cells activation
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25
Lymph nodes in all secondary organs are also referred to as Malpighi bodies (corpuscles)
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26
The internal stroma of the Spleen is formed by loose collagenous CT
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27
Lymphoid nodules in the Spleen are also referred to as Malpighian corpuscles
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28
Splenic cords of Billroth are a part of the white pulp
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28
Splenic cords of Billroth are made up of the reticular tissue, immune cells and blood elements
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29
Cords of Billroth are part of the red pulp of the spleen
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30
The marginal zone separates the white pulp from the red pulp of the spleen
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31
White pulp of Spleen consists only of B-lymphocytes
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32
T-lymphocytes mature in the Spleen
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33
Hassall bodies are a characteristic part of the white pulp of the spleen
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34
The periarteriolar lymphoid sheath (PALS) surrounding the central arteriole in spleen consists of T-lymphocytes
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35
Oral surface of the Tonsilla palatina is covered by fibrous capsule
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36
Many lymphoid nodules are present beneath the stratified squamous epithelium of palatine tonsils
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36
Tonsilla palatina is lined with a stratified cylindrical epithelium with cilia and goblet cells
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37
Secondary lymph nodes are located under the stratified squamous nonkeratinized epithelium inside the palatine tonsil
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38
Under the layered flat non-horned epithelium inside the Tonsilla palatina there are secondary lymph nodules
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39
The internal fine stroma of the palatine tonsil consists of reticular cells and reticular fibres containing type III collagen
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40
T-lymphocytes are generally bigger than B-lymphocytes in regions with lymphatic tissue
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41
Both B-and T-lymphocytes migrate directly from the bone marrow to the secondary lymphoid organs where they perform their specific functions
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42
T-helper lymphocytes produce interleukins
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