Immune System

Question 1

Answer 1

Thymus

C loose collagenous capsule Cx basophilic outer cortex M inner eosinophilic medulla S interlobular septa

Question 2

Answer 2

Lymph node structure

C capsule Cx cortex F follicles H hilum M medulla MC medullary cords S subcapsular sinus T trabeculae

Question 3

Answer 3

Lymph node

C capsule CS cortical sinus MS medullary sinus T trabeculae TS trabeculae sinuses

Question 4

Answer 4

Capsule and subcapsular sinus

C capsule E endothelial cell L lymphocytes M sinus macrophages S subcapsular sinus

Question 5

Answer 5

Secondary lymphoid follicle

GC germinal centre MZ mantle zone

Question 6

Answer 6

Germinal centre

CC centrocytes CB centroblasts M tingible body macrophages MZ mantle zone

Question 7

Answer 7

Lymph node medulla

MC medullary cords MS medullary sinuses T trabeculae

Question 8

Answer 8

Medullary cords of lymph node

M sinus macrophages P plasma cells

Question 9

Answer 9

Palatine tonsil

E epithelium F lymphoid follicles with germinal centres Cap collagenous hemicapsule

Question 10

Answer 10

Peyer’s patch in ileum

GC germinal centre

Question 11

Answer 11

Spleen

C capsule RP red pulp T trabecula WP white pulp

Question 12

Answer 12

Red pulp

E endothelial cels P parenchyma VS venous sinuses

Question 13

Answer 13

Red pulp stained with reticulin

P parenchyma VS venous sinuses

Question 14

Answer 14

Splenic lymphoid tissue (T cell area)

A central artery RP red pulp T T cell area

Question 15

Answer 15

Splenic lymphoid tissue - B cells form follicles usually located in the vicinity of an arteriole

GC germinal centre MgZ marginal zone MnZ mantle zone PL perilymphoid red pulp