Bone Marrow and Thymus

Question 1

Answer 1

A = adipose

M = megakaryocyte ( produces platelets)

Ey = erythrocytes

E = developing eosinophils

BN = developing neutrophils

Question 2

Answer 2

Blue Arrow = Capsule

Yellow Arrows = Trabeculae

Yello/Green Outline = Lobules

Question 3

Also Identify the T Lymphocytes

Answer 3

Black Arrow = Epithelial Reticular Cells

Yellow Outline = Hassall’s Corpuscles

Question 4

Identify the Black Arrows

Answer 4

Hassall’s Corpuscles

Question 5

Keratinization

Answer 5

Corpuscles undergo keratinization to have less cellularity

Question 6

Answer 6

Question 7

Answer 7

Question 8

Answer 8

Question 9

Answer 9

Question 10

Answer 10

Diffuse Lymphoid Tissue

Question 11

Answer 11

Primary Nodule (Aka Follicule)

Question 12

Answer 12

Peyers Patches (Large Nodules)

Question 13

Answer 13

Top Right = Tonsillar Crypts

Bottom Right = Lymphatic Nodules

Both Left Boxes = Lumen of the Oral Cavity

Question 14

Answer 14

Black Arrows = Non-Keratinized Stratified Squamous Epithelium

Yellow Arrows = Tonsilar Crypts

Green Arrows = Septa

Question 15

Answer 15

Yellow Arrows = Tonsilar Crypt

Green Arrows = Septa

Question 16

Answer 16

Rare Primary Nodules (Unstimulated Lymphocytes)

(Everything else is a secondary nodule =Stimulated Lymphocytes which are darker because they are

closer together)

Question 17

Identify the black outline, the yellow outline, and the paler central region.

Answer 17

Black Outline = Secondary Nodule

Yellow Outline = Corona

Pale Region = Germinal Center

Question 18

Answer 18

Larger Cells (Black arrow) that are dividing are

called “Blast forms”

Question 19

Answer 19

Red Outline = Blast Forms

Blue Outline = Macrophages

Question 20

Answer 20

Blue Outline = Mitotic Figures

Question 21

Answer 21

Red Arrows = Macrophages

Black Arrows = Blast forms of Lymphocytes

Question 22

Answer 22

Black Arrows = Macrophages

Question 23

Answer 23

Question 24

Pharyngeal tonsils

Answer 24

Same as palatine tonsil, except covered with stratified squamous epithelium and pseudostratified ciliated columnar epithelium with goblet cells

Question 25

Answer 25

Question 26

Answer 26

Question 27

Answer 27

Question 28

Answer 28

Question 29

The outlined region is more concentrated in B or T cells?

Answer 29

Question 30

Identify the space indicated by the X

Answer 30

Question 31

Answer 31

Question 32

Answer 32

Question 33

Answer 33

Question 34

Answer 34

Question 35

Answer 35

Question 36

Right upper Corner

Answer 36

Question 37

Answer 37

Question 38

Answer 38

Question 39

Answer 39

Question 40

Answer 40

Question 41

Answer 41

Question 42

Answer 42

Question 43

Answer 43