Spleen: white pulp
The central arteriole and its relationship to the PALS is seen at higher magnification (area indicated by the yellow frame in the inset). For most of its course, the central arteriole is surrounded by PALS. Frequently, lymphoid nodules, B-dependent areas that form part of white pulp, develop within the PALS, causing the central arteriole to be eccentrically located. A germinal center is just beginning to form. 200x
Periarterial lymphoid sheath (PALS)
The central arteriole and its relationship to the PALS is seen at higher magnification (area indicated by the yellow frame in the inset). For most of its course, the central arteriole is surrounded by PALS. Frequently, lymphoid nodules, B-dependent areas that form part of white pulp, develop within the PALS, causing the central arteriole to be eccentrically located. A germinal center is just beginning to form. 200x
Central arteriole
The central arteriole and its relationship to the PALS is seen at higher magnification (area indicated by the yellow frame in the inset). For most of its course, the central arteriole is surrounded by PALS. Frequently, lymphoid nodules, B-dependent areas that form part of white pulp, develop within the PALS, causing the central arteriole to be eccentrically located. A germinal center is just beginning to form. 200x
Lymphoid nodule
The central arteriole and its relationship to the PALS is seen at higher magnification (area indicated by the yellow frame in the inset). For most of its course, the central arteriole is surrounded by PALS. Frequently, lymphoid nodules, B-dependent areas that form part of white pulp, develop within the PALS, causing the central arteriole to be eccentrically located. A germinal center is just beginning to form. 200x
Germinal center
The central arteriole and its relationship to the PALS is seen at higher magnification (area indicated by the yellow frame in the inset). For most of its course, the central arteriole is surrounded by PALS. Frequently, lymphoid nodules, B-dependent areas that form part of white pulp, develop within the PALS, causing the central arteriole to be eccentrically located. A germinal center is just beginning to form. 200x
Red pulp
The central arteriole and its relationship to the PALS is seen at higher magnification (area indicated by the yellow frame in the inset). For most of its course, the central arteriole is surrounded by PALS. Frequently, lymphoid nodules, B-dependent areas that form part of white pulp, develop within the PALS, causing the central arteriole to be eccentrically located. A germinal center is just beginning to form. 200x
Trabeculum
The central arteriole and its relationship to the PALS is seen at higher magnification (area indicated by the yellow frame in the inset). For most of its course, the central arteriole is surrounded by PALS. Frequently, lymphoid nodules, B-dependent areas that form part of white pulp, develop within the PALS, causing the central arteriole to be eccentrically located. A germinal center is just beginning to form. 200x
Image source >
Image taken of a slide from the University of Michigan collection.
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