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Module 18-Lymphatic System > Module 18 Lymphatic System > Flashcards

Module 18 Lymphatic System Flashcards

1
Q

What three parts makes up the lymphatic system?

A

Lymph
Lymphatic vessels
Lymph Nodes

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2
Q

Daily 3L of leaked fluid needs to get back to the blood vessels in order for the cardiovascular system to work properly, this is solved by the ____ ______.

A

Lymphatic System

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3
Q

Once the interstitial fluid that leaks enters the lymphatic system, it is called

A

Lymph

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4
Q

The lymphatic system is also known as the basis of the ________ _______

A

Immune System

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5
Q

The lymphatic vessels are a ________ system that lymph flows towards the heart

A

unidirectional

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6
Q

Compared to blood vessels, lymphatic vessels are extremely ______ and have one way ______ that are anchored to collagen fibers preventing the collapse of capillaries

A

Porous

minivalves

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7
Q

Where are lymphatic capillaries absent?

A

Teeth, bone marrow, and bones and also the CNS

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8
Q

These are specialized lymph capillaries that are present in the intestinal mucosa and absorb waste

A

Lacteals

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9
Q

This is the fatty lymph that Lacteals absorb

A

Chyle

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10
Q

Lymph veins are like those of normal veins except they have _____ walls and more ____-

A

thinner

valves

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11
Q

Lymph is delivered into one of two large ducts, which could be the ___ or ___ duct.

A

Right lymphatic

Thoracic duct

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12
Q

This duct drains the right upper arm and the right side of the head and thorax

A

Right Lymphatic duct

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13
Q

This duct arises from the Cisterna Chyli and drains the rest of the body

A

Thoracic duct

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14
Q

What is lymph propelled by?

A

Pulsations of near by arteries and contractions of smooth muscle

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15
Q

What are the main cells of the immune system that protect against antigens?

A

Lymphocytes

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16
Q

Anything the body perceives as ______ the lymphocytes attack

A

Foreign

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17
Q

These types of lymphocytes manage the immune response, they attack and destroy foreign objects

A

T cells

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18
Q

these types of lymphocytes produce plasma cells which secrete antibodies

A

B cells

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19
Q

These lymphocytes phagocytize foreign substances and help activate T cells

A

Macrophages

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20
Q

These lymphocytes capture antigens and deliver them to lymph nodes

A

Dendritic cells

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21
Q

These lymphocytes produce stroma and supports other cells in lymphoid organs

A

Reticular cells

22
Q

This houses and provides a proliferation site for lymphocytes

A

Lymphoid tissue

23
Q

This lymphatic tissue comprises of scattered reticular tissue elements in every body organ

A

Diffuse lymphatic tissue

24
Q

This organization of lymphoid tissue is solid spherical bodies of tightly packed reticular elements of cells

A

Lymphatic follicles

25
Q

These are embedded in connective tissue in clusters along the lymphatic vessels, they seen readily in axillary, inguinal, and cervical regions of the body

A

Lymph Nodes

26
Q

These macrophages destroy microorganisms and debris in lymph nodes

A

Filter lymph

27
Q

This part of the lymph node contains follicles with germinal centers heavy with diving B cells

A

Cortex

28
Q

This extends inward and divides the node into compartments

A

Trabeculae

29
Q

these extend from the medulla inward from the cortex and contain B and T cells

A

medullary cords

30
Q

Lymph enters the circulation through lymph nodes through the _____ lymphatic vessels and exits through the _____ lymphatic vessels

A

Afferent

Efferent

31
Q

This is the largest lymphatic organ

A

Spleen

32
Q

the functions of the spleen is to cleanse the blood of _____ and _____ and debris

A

Aged blood cells, Platelets

33
Q

Then spleen stores breakdown platelets for products of RBC that can be reused like

A

Iron

34
Q

The spleen has two distinct area, this part is around the central arteries, mostly lymphocytes non reticular fibers that are involved in immune functions

A

White pulp

35
Q

This distinct area of the spleen that is in venous sinuses and splenic cords, they are rich in marcophages for the disposal of worn out RBCs and bloodborne pathogens

A

Red Pulp

36
Q

This lymphatic organ disappears when you become an adult,it is the basis of your immune system

A

Thymus

37
Q

These provide an environment in which T lymphocytes become immunocompetent

A

Thymocytes

38
Q

This part of the thymus contains fewer lymphocytes and thymic (Hassalls) corpuscles involved in regulatory T development

A

Medulla

39
Q

This is the simplest Lymphatic organ that forms a ring around the pharynx

A

Tonsils

40
Q

This is the tonsil that is at the posterior end of the coral cavity

A

Palatine Tonsil

41
Q

This is a tonsil that is grouped at the base of the tongue

A

Lingual Tonsil

42
Q

This is a tonsil in the posterior wall of the nasopharynx

A

Pharyngeal Tonsil

43
Q

This tonsil is surrounding the openings of the auditory tube into the pharynx

A

Tubal Tonsils

44
Q

This lymphatic organ is not fully capsulated

A

Tonsils

45
Q

These are clusters of lymphoid follicles in the wall, distal portion of the small intestine

A

Peyers Patches

46
Q

These destroy bacteria preventing them from breaching the intestinal wall

A

Peyers patches in the appendix (large intestines)

47
Q

This protects against digestive and respiratory systems from foreign matter

A

MALT

or Mucosa-associated lymphatic tissue

48
Q

Where is the MALT tissue in the digestive tract?

A

Peyers patch
tonsils
appendix

49
Q

Where are the MALT tissues in the respiratory tract?

A

Lymphoid nodules in the walls of bronchi

50
Q

Epithelial tissue overlying tonsil masses invaginates forming what?

A

Tonsillar crypts

Module 18-Lymphatic System (1 decks)

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