Test 4d

Question 1

3 components of lymphatic system

Answer 1

Lymph nodes, lymph vessels, other lymphoid organs and tissues

Question 2

Transport back blood fluids that have exited the vascular system and are interstitial fluids

Answer 2

Lymphatic vessels

Question 3

Contain phagocytic cells and lymphocytes that play vital roles int he body’s defense and resistance to disease

Answer 3

Lymphoid tissues

Question 4

Up to how many liters a day is returned into the vascular system via lymph vessels?

Answer 4

3

Question 5

Fluid that accumulates in the tissues

Answer 5

Edema

Question 6

What happens when edema is excessive?

Answer 6

Impairs ability of tissue cells to exchange gases, nutrients, wastes with blood

Question 7

Clear water

Answer 7

Lymph

Question 8

Another name for lymph vessels

Answer 8

Lymphatics

Question 9

Lymphatic vessels form a one-way system that moves lymph towards what?

Answer 9

Heart

Question 10

Small lymph vessels that weave between the blood capillaries and loose connective tissues

Answer 10

Lymphatic capillaries

Question 11

What forms the flap-like one-way mini-valves of the lymph vessels

Answer 11

Loosely overlapping walls

Question 12

What happens when lymph vessel valves open with increased pressure form interstitial fluid?

Answer 12

Fluid travels into the lymph vessels

Question 13

What happens when pressure is higher inside lymph vessel?

Answer 13

Not able to return back to the interstitial fluid

Question 14

What types of things can enter lymph vessels but not capillaries?

Answer 14

Bacteria, viruses, and cell debris

Question 15

What is the final destination for bacteria, viruses, and cell debris in the lymph vessels?

Answer 15

Trapped in lymph nodes as lymph fluid is filtered

Question 16

How many ducts serve to return lymph into the venous system?

Answer 16

2

Question 17

Drains the right upper extremity and right side of head and trunk

Answer 17

Right lymphatic duct

Question 18

Drains lymph that the right lymphatic duct does not

Answer 18

Thoracic duct

Question 19

What do both ducts empty into?

Answer 19

Subclavian vein on respective side

Question 20

How is lymph returned to circulation?

Answer 20

Skeletal muscle contractions that assist in fluid flow and thoracic pressure changes during breathing

Question 21

What do larger lymph vessels contain in order to help with flow?

Answer 21

Smooth muscles that contract

Question 22

Aside from removing foreign material from lymph fluid, what other role does lymph nodes play?

Answer 22

Produce lymphocytes

Question 23

3 places where lymph nodes are found?

Answer 23

Inguinal (groin), axillary (armpit), cervical regions

Question 24

2 things that lymph nodes contain

Answer 24

Macrophages, lymphocytes

Question 25

Engulf foreign substances in lymph nodes

Answer 25

Macrophages

Question 26

WBCs that respond to foreign substances

Answer 26

Lymphocytes

Question 27

What do swollen lymph nodes indicate?

Answer 27

Active infection, result of trapped bacteria

Question 28

Surrounds each lymph node

Answer 28

Fibrous capsule

Question 29

Extend inward and divide each lymph node into compartments

Answer 29

Trabeculae

Question 30

Outer part of node compartment

Answer 30

Cortex

Question 31

Inside each lymph node compartment, containing collections of lymphocytes

Answer 31

Follicles

Question 32

Central portion of entire lymph node that contains phagocytic macrophages

Answer 32

Medulla

Question 33

Fluid enters the convex side of lymph node through these vessles

Answer 33

Afferent lymphatic vessels

Question 34

After fluid enter nodes, what does it contain to flow through?

Answer 34

Sinuses

Question 35

Indented region of node where fluid exits

Answer 35

Hilum

Question 36

Through what does fluid exit hilum?

Answer 36

Efferent lymphatic vessels

Question 37

How many nodes does fluid travel through to make sure its cleansed

Answer 37

Several

Question 38

Blood rich organ that filters blood

Answer 38

Spleen

Question 39

What does the spleen do to old RBCs

Answer 39

Destroys them and returns them to liver

Question 40

What does the spleen store

Answer 40

Platelets

Question 41

What is produced and found in spleen to assist with immune system?

Answer 41

Lymphocytes

Question 42

Organ that establishes immunity during youth

Answer 42

Thymus

Question 43

Hormone produced by thymus that program lymphocytes to carry out its roles

Answer 43

Thymosin

Question 44

What disease is associated with corrupt thymus function

Answer 44

Myasthenia gravis (autoimmune)

Question 45

Small masses of lymphoid tissue in the pharynx

Answer 45

Tonsils

Question 46

Tonsil-like structures in the wall of small intestine

Answer 46

Peyer's patches

Question 47

What do the macrophages present in peyer's patches do?

Answer 47

Destroy bacteria and prevent them from penetrating intestine wall

Question 48

General term for tissue that protects the upper respiratory and digestive tracts from never ending attacks of foreign matter enter those cavities

Answer 48

Mucosa Associated Lymphatic Tissue (MALT)