Activity 2: Studying the Microscopic Anatomy of a Lymph node, the Spleen, and a Tonsil

Helpfulness: 0
Set Details Share
created 3 years ago by Zajdab
436 views
updated 3 years ago by Zajdab
show moreless
Page to share:
Embed this setcancel
COPY
code changes based on your size selection
Size:
X
Show:
1

The lymph node is enclosed in what?

A fibrous capsule

2

From the fibrous capsule of the lymph node, what extends inwards to divide the node into several compartments?

Trabeculae

3

The trabeculae is composed of what tissue type?

Connective tissue

4

The cortex contains what type of center?

Germinal center

5

The germinal centers contain what rapidly-dividing group of cells?

B lymphocytes/cells

6

The rest of the cortical cells (cortex cells) are primarily what group of cells?

T cells

7

The remaining T lymphocytes/cells in the cortical or cortex cells do what in regard to circulation?

Circulate continuously from the blood into the nodes, and then from exiting the nodes in the lymphatic stream

8

Lymphocytes are arranged in a cordlike fashion in what portion of the lymph nodes?

Medulla portion

9

Most medullary cells are what type of cells?

Macrophages

10

Macrophages are important for what 2 functions?

1. Phagocytosis

2. Antigen-presentation to the T cells

11

Lymph enters the lymph nodes through what vessels?

Afferent vessels

12

Lymph circulates through what in the lymph nodes?

Lymph sinuses

13

Lymph leaves the lymph nodes through what vessels located at which structure of the nodes?

Leaves through efferent vessels at the hilum

14

What is the benefit of having fewer efferent vessels than afferent vessels?

The lymph stagnates within the node

15

Why is it beneficial to have lymph stagnate within the nodes? (Hint: 2 reasons)

1. Allows time to generate an immune response

2. Allows macrophages to remove debris from the lymph before it reenters the blood vascular system

16

In the spleen, the white pulp are areas of what cells suspended in what fibers?

Areas of lymphocytes suspended in reticular fibers

17

The white pulp is clustered around what vessels?

Central arteries

18

The red pulp of the spleen has what 3 components? (Hint: sinusoids, tissue, cell type)

1. Splenic sinusoids

2. Reticular tissue

3. Macrophages

19

The macrophages in the red pulp are called what?

Splenic cords

20

Which pulp is responsible for the immune functions of the spleen?

White pulp

21

Why is the white pulp responsible for the immune functions of the spleen?

It contains primarily lymphocytes

22

Macrophages in the red pulp remove what 5 substances?

1. Worn-out RBCs

2. Debris

3. Bacteria

4. Viruses

5. Toxins

23

In tonsils, what contains the germinal centers?

Lymphoid follicles

24

The lymphoid follicles and germinal centers are surrounded by what cell type?

Lymphocytes

25

What is the function of the tonsilar crypts of the tonsils?

Trap bacteria and other foreign material.

26

How are bacteria in the tonsils destroyed eventually?

Eventually, they work their way into the lymphoid tissue and are destroyed.

27
card image

Identify the blanks.

card image
28
card image

Identify the blanks.

card image
29
card image

Identify the blanks.

card image
30
card image

Identify the blanks.

card image
31
card image

Identify the blanks.

card image
32
card image

1. Identify the blanks.

2. What lymphoid organ is this slide?

card image

2. Lymph node

33
card image

1. Identify the blanks.

2. What lymphoid organ is this slide?

card image

2.Tonsil

34
card image

1. Identify the blanks.

2. What lymphoid organ is this slide?

card image

2. Spleen