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Anatomy And Physiology > Lymphatic System > Flashcards

Lymphatic System Flashcards

1
Q

What is interstitial fluid

A

It is the ultra filtrate of blood

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2
Q

What does hydrostatic pressure do

A

It pushes fluid into capillaries

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3
Q

What does blood colloid osmotic pressure do

A

It pulls fluid into capillaries

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4
Q

The fluid remains in the interstitial space passes into lymphatic capillaries as ?

A

Lymph

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5
Q

What are the 3 core functions of lymphatic vessels

A

Drains excess interstitial fluid (takes it back to the blood )
Transports dietary lipids
Carries out immune responses

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6
Q

Where are lymph vessels not found

A

A vascular tissue ,CNS ,Bone marrow

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7
Q

What do the mini valves in lymphatic vessels do

A

They allow fluid to enter when pressure outside the vessel increase but not in reverse

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8
Q

Do large vessels have mini valves

A

No they do not they have one way valves that assist with the return of lymph to general circulation

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9
Q

What are the main lymphatic trunks

A 
Jugular 
Subclavian 
Bronchomediastinal 
Intestinal 
Lumbar
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10
Q

What is the mechanism of flow in the lymphatic circulation

A

Lymphatic capillaries ,lymphatic vessels ,lymph nodes ,lymph trunks ,Lymph ducts ,blood

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11
Q

What are the two lymph ducts

A

Right lymphatic and the thoracic

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12
Q

What are the primary lymphatic organs

A

Where stem cells divide and become immunocompetent they include red bone marrow and thymus

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13
Q

What are secondary organs

A

Sites where most immune responses occur

Includes spleen ,lymph ,nodules ,lymph nodes

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14
Q

What is the function of the thymus

A

Proliferation and maturation of T cells

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15
Q

What happens to mature T cells in the thymus

A

They leave the thymus via the blood stream and migrate to other lymphoid organs

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16
Q

Each lobe of the thymus has lobules ,what types of cells are found in the cortex of the lobules

A

Large number T cells , dendritic cells ,epithelial cells and macrophages

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17
Q

What do dendritic cells do

A

They assist in maturation of T cells

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18
Q

What do the epithelial cells in the cortex do

A

They educate T cells

19
Q

What cells are found in the medulla of the lobules

A

Few T cells ,dendritic cells ,epithelial cells , and macrophages

20
Q

What is the Hassals corpuscles

A

Remnants of the epithelial cells and they are filled with keratohyalin deposits

21
Q

What are lymph nodes responsible for

A

For filtration of lymph

22
Q

Where are lymph nodes located

A

Located along the lymphatic vessels, occurring in clusters ,eg by axillary ,cervical and inguinal regions

23
Q

What cells are in the lymph nodes lobules cortex

A

Densely packed with B cells

24
Q

What do B cells proliferate and differentiate into

A

Plasma cells and memory cells

25
Q

What is in the medullary cords

A

b lymphocytes ,anti body producing plasma cells and macrophages

26
Q

What is in the medullary sinuses

A

Reticular fibers ,lymphocytes ,macrophages

27
Q

What is metastasis

A

Spread of disease from one part of the body to another and it can happen via lymphatic vessels

28
Q

What are cancerous Lymph nodes like

A

They are enlarged ,firm ,non tender and establish new tumors where they lodge ,they are fixed

29
Q

What is the stroma of the spleen

A

Capsule ,trabeculae , reticular fibers

30
Q

What parts form part of the parenchyma of the spleen

A

Red and white pulp

31
Q

What is the function of the spleen

A

Removes worn out and damaged RBCs and platelets
Storage of platelets
Hemopoiesis during fetal life

32
Q

What forms part of the white pulp in the spleen

A

Lymphocytes and macrophages suspended on reticular fibers surrounding central artery

33
Q

What forms part of the red pulp of the sple

A

Venous sinuses

Splenic cords

34
Q

Do lymphatic nodules have a capsule

A

No ,lymphatic nodes have one

35
Q

Where can we find lymphatic nodules

A

Mucous membranes lining the GI ,urinary ,reproductive,and respiratory tract

36
Q

What are tonsils

A

Collections of lymphocytes tissue around aero digestive tract

37
Q

What are the three types of tonsils

A

Pharyngeal
Palatine
Lingual

38
Q

What are lymphocytes

A

Warriors of the immune system

39
Q

What do B cells do

A

The protect the body against antigens

40
Q

What do T cells do

A

They manage immune responses and some of the, directly attack and destroy infected cells

41
Q

What are reticular cells

A

They are fibroblast like cells that produce the reticular fibers stroma which is the network that supports the other cell types in the lymphoid organs

42
Q

Lymphoid tissue have which cell types

A

B and T cells ,reticulocytes , macrophages,lympcocyte cells ,dendritic cells

43
Q

What are lymphoid tissue fiber type

A

Reticular fibers

Anatomy And Physiology (8 decks)

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