3 - Lymphoid Tissue

Question 1

System for protection

Answer 1

Lymphoid tissue

Question 2

What are the three types of lymphoid tissues?

Answer 2

Loose
Dense
Nodular

Question 3

Reticular cells and tissue are what type of lymphoid tissue?

Answer 3

Loose

Question 4

Lymphocyte predominate describes what type of lymphoid cells?

Answer 4

Dense

Question 5

Free cells in nodules are what type of lymphoid tissue?

Answer 5

Nodular

Question 6

Loose lymphoid tissue serves what purpose?

Answer 6

Good for “trapping” large molecules

Question 7

Which is the best of the three lymphoid tissues - its a complex structure that has a variety of cells that stop the foreign materials

Answer 7

Nodular

Question 8

Lymphocytes associated with cellular immunity are what?

Answer 8

T-cells

Question 9

What are the 4 types of T-cells?

Answer 9

Helper
Cytotoxic
Memory
Suppressor

Question 10

Which type of cell is for lymphokine secretion? (Sends out signaling molecules)

Answer 10

Helper

Question 11

Which type of T-cells are the killer cells; responsible for the destruction of foreign cells

Answer 11

Cytotoxic

Question 12

Which type of T-cells do we use to develop immunity?

Answer 12

Memory

Question 13

Which type of T-cells stop helper cells from secreting?

Answer 13

Suppressor

Question 14

Lymphocytes move through the __________ system

Answer 14

Circulatory

Question 15

When do lymphocytes enter the tissue?

Answer 15

When they encounter foreign material

Question 16

________ are associated with cellular immunity

Answer 16

T-cells

Question 17

What is the function of B-cell lymphocytes?

Answer 17

Secrete compound that leads to immune system help

Question 18

What triggers B-cell activation?

Answer 18

Antigen (Ag)

Question 19

What is the active form of a B-cell?

Answer 19

Plasma

Question 20

Plasma cells secrete ______

Answer 20

Antibodies (Ab)

Question 21

What are antibodies?

Answer 21

Circulating glycoproteins that cause agglutination of cells and precipitation of soluble Ag leading to phagocytosis

Question 22

What are the 5 types of immunoglobulins

Answer 22

IgG
IgA
IgM
IgE
IgD

Question 23

What is the function of IgG

Answer 23

Fetal immunity (crosses placenta)

Question 24

What is the function of IgA?

Answer 24

Protects against micro-organisms

Question 25

What is the function of IgM?

Answer 25

Activates compliment system (helps immune system cells)

Question 26

What is the function of IgE?

Answer 26

Allergic Response

Question 27

What is the function of IgD?

Answer 27

Unknown

Question 28

Where are the lymph nodes found?

Answer 28

Isolated CT of the respiratory, urinary, & digestive systems

Question 29

The dark staining, outer part of the lymph nodes is made of

Answer 29

Lymphocytes

Question 30

The light staining center of the lymph node is what?

Answer 30

The germinal center (activated lymphocytes)

Question 31

If there is an increase in infection of the body, you will see more ______________

Answer 31

Germinal Centers

Question 32

Lymph nodes are encased in what?

Answer 32

Connective tissue (usually dense) with trabeculae

Question 33

As blood travels through arteries, it leaks what substance?

Answer 33

Lymphatic fluid

Question 34

Lymphatic fluid is more easily recovered in veins or arteries?

Answer 34

Veins

Question 35

The convex surface of a lymph node is where we see _______ vessels going ______ (in or out)

Answer 35

Afferent | In

Question 36

The concave hilum of a lymph node is where we see ________ vessels going _______ (in or out)

Answer 36

Efferent | Out

Question 37

What are the layers of the lymph node outside to inside

Answer 37

Cortex Paracortex Medulla

Question 38

The subscapular sinus is ______ to the lymph node capsule and contains _________ and _________ cells

Answer 38

Deep | Macrophages and reticular cells

Question 39

What does the medulla contain? (In the lymph node)

Answer 39

Medullary cords and sinuses (and B-cells)

Question 40

What does the paracortex layer of the lymph node contain?

Answer 40

Lymphoid nodules - mainly T-cells

Question 41

What does the cortex layer in the lymph node contain?

Answer 41

Lymphocytes - mainly B-cells(?)

Question 42

What is the function of the cortex? (In the lymph nodes)

Answer 42

Marks molecules as foreign materials

Question 43

What is the function of the paracortex? (In the lymph nodes)

Answer 43

T-cells destroy they marked protein

Question 44

What is the function of the medulla? (In the lymph node)

Answer 44

Mark molecules to be destroyed by cells outside the lymph node (like a warning)

Question 45

When blood leaves the lymph node, where does it go?

Answer 45

Another node or to the venous blood

Question 46

What do the lymph nodes filter?

Answer 46

Lymphatic fluid AKA lymph AKA Blood plasma

Question 47

What does the spleen filter?

Answer 47

Blood

Question 48

What are the two regions of the spleen?

Answer 48

White pulp and red pulp

Question 49

What is the function of the white pulp?

Answer 49

It function with the immune system and removes foreign material

Question 50

What is the function of the red pulp?

Answer 50

It removes old blood cells and destroys them

Question 51

The spleen has what type of capsule?

Answer 51

Dense CT with trabeculae

Question 52

What would you find in red pulp of the spleen?

Answer 52

Sphlenic sinusoids with longed cords of cells called splenic cordsp

Question 53

What would you find in the white pulp of the spleen?

Answer 53

Lymphoid nodules and central arteries

Question 54

Blood slows down as it moves through ________ _________

Answer 54

Sphlenic sinusoids

Question 55

Where do you find the trabecular artery?

Answer 55

The CT of the spleen

Question 56

Splenic artery divides into what?

Answer 56

Trabecular artery

Question 57

The central artery (in the spleen) is surrounded by what?

Answer 57

Lymph nodes

Question 58

The arteries that leave the central arteries are _________

Answer 58

Penicillar arteries

Question 59

The _______ artery is surrounded by macrophages and appears after the penicillar artery

Answer 59

Sheathed

Question 60

The sheathed artery becomes ________

Answer 60

Sinusoids

Question 61

The sinusoids divide into

Answer 61

Venous return

Question 62

The central arteries are white or red pulp?

Answer 62

White

Question 63

Pencillar to venous return are red or white pulp?

Answer 63

Red pulp

Question 64

Periarterial lymphocytes (AKA PALS) are primary what type of cells? And what type of pulp?

Answer 64

T-cells (some B-cells) | White pulp

Question 65

What are the three types of tonsils?

Answer 65

Palatine Pharyngeal Lingual

Question 66

What do the tonsils filter?

Answer 66

Air, food, drink Anything brought in through nose or mouth

Question 67

The palatine nodules are made of ___________ crypts

Answer 67

20-30

Question 68

What type of epithelium will you find on the palatine tonsil?

Answer 68

Stratified squamous

Question 69

The pharyngeal tonsil is made of a ________ surface with ______ crypts

Answer 69

Pleated | No crypts

Question 70

The palatine tonsils have a _____ capsule

Answer 70

Thick

Question 71

Pharyngeal tonsils have a ______ capsule

Answer 71

Thin

Question 72

The pharyngeal tonsils have what type of epithelium?

Answer 72

Respiratory - | Ciliated pseudostratified columnar

Question 73

The lingual tonsils have ______ crypt and _____ capsule

Answer 73

1 | NO capsule

Question 74

What type of epithelium does the lingual tonsil have?

Answer 74

Keratinized stratified squamous

Question 75

The lingual tonsils are located where?

Answer 75

On the back portion of the tongue

Question 76

The ________ arches have adenoids which cause snoring

Answer 76

Pharyngeal

Question 77

The thymus has ______ lymph nodules

Answer 77

0

Question 78

The dark-staining core of the thymus contains:

Answer 78

T-cells Reticular cells Macrophages

Question 79

What is the function of the thymus?

Answer 79

To make T-lymphocytes

Question 80

The lighter staining inner portion of the thymus contains:

Answer 80

Loose lymphoid tissue with Hassal’s corpuscles

Question 81

___________________ are several layers of flattened cells, concentrically arranged reticular cells, and T-cells

Answer 81

Hassal’s corpuscles

Question 82

What type of capsule the thymus have?

Answer 82

Dense CT with trabeculae