Module 18 Lymphatic System

Question 1

What three parts makes up the lymphatic system?

Answer 1

Lymph
Lymphatic vessels
Lymph Nodes

Question 2

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 ____ ______.

Answer 2

Lymphatic System

Question 3

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

Answer 3

Lymph

Question 4

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

Answer 4

Immune System

Question 5

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

Answer 5

unidirectional

Question 6

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

Answer 6

Porous

minivalves

Question 7

Where are lymphatic capillaries absent?

Answer 7

Teeth, bone marrow, and bones and also the CNS

Question 8

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

Answer 8

Lacteals

Question 9

This is the fatty lymph that Lacteals absorb

Answer 9

Chyle

Question 10

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

Answer 10

thinner

valves

Question 11

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

Answer 11

Right lymphatic

Thoracic duct

Question 12

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

Answer 12

Right Lymphatic duct

Question 13

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

Answer 13

Thoracic duct

Question 14

What is lymph propelled by?

Answer 14

Pulsations of near by arteries and contractions of smooth muscle

Question 15

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

Answer 15

Lymphocytes

Question 16

Anything the body perceives as ______ the lymphocytes attack

Answer 16

Foreign

Question 17

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

Answer 17

T cells

Question 18

these types of lymphocytes produce plasma cells which secrete antibodies

Answer 18

B cells

Question 19

These lymphocytes phagocytize foreign substances and help activate T cells

Answer 19

Macrophages

Question 20

These lymphocytes capture antigens and deliver them to lymph nodes

Answer 20

Dendritic cells

Question 21

These lymphocytes produce stroma and supports other cells in lymphoid organs

Answer 21

Reticular cells

Question 22

This houses and provides a proliferation site for lymphocytes

Answer 22

Lymphoid tissue

Question 23

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

Answer 23

Diffuse lymphatic tissue

Question 24

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

Answer 24

Lymphatic follicles

Question 25

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

Answer 25

Lymph Nodes

Question 26

These macrophages destroy microorganisms and debris in lymph nodes

Answer 26

Filter lymph

Question 27

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

Answer 27

Cortex

Question 28

This extends inward and divides the node into compartments

Answer 28

Trabeculae

Question 29

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

Answer 29

medullary cords

Question 30

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

Answer 30

Afferent | Efferent

Question 31

This is the largest lymphatic organ

Answer 31

Spleen

Question 32

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

Answer 32

Aged blood cells, Platelets

Question 33

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

Answer 33

Iron

Question 34

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

Answer 34

White pulp

Question 35

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

Answer 35

Red Pulp

Question 36

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

Answer 36

Thymus

Question 37

These provide an environment in which T lymphocytes become immunocompetent

Answer 37

Thymocytes

Question 38

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

Answer 38

Medulla

Question 39

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

Answer 39

Tonsils

Question 40

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

Answer 40

Palatine Tonsil

Question 41

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

Answer 41

Lingual Tonsil

Question 42

This is a tonsil in the posterior wall of the nasopharynx

Answer 42

Pharyngeal Tonsil

Question 43

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

Answer 43

Tubal Tonsils

Question 44

This lymphatic organ is not fully capsulated

Answer 44

Tonsils

Question 45

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

Answer 45

Peyers Patches

Question 46

These destroy bacteria preventing them from breaching the intestinal wall

Answer 46

Peyers patches in the appendix (large intestines)

Question 47

This protects against digestive and respiratory systems from foreign matter

Answer 47

MALT | or Mucosa-associated lymphatic tissue

Question 48

Where is the MALT tissue in the digestive tract?

Answer 48

Peyers patch tonsils appendix

Question 49

Where are the MALT tissues in the respiratory tract?

Answer 49

Lymphoid nodules in the walls of bronchi

Question 50

Epithelial tissue overlying tonsil masses invaginates forming what?

Answer 50

Tonsillar crypts