White pulp

From Wikipedia, the free encyclopedia
Jump to: navigation, search
White pulp
Transverse section of a portion of the spleen. (Lymphatic nodule labeled at center right.)
Illu spleen.jpg
Precursor mesoderm
Artery trabecular artery
Vein trabecular vein
Latin noduli lymphoidei splenici
Anatomical terminology

White pulp is a histological region of the spleen. The altered coat of the arterioles, consisting of adenoid tissue, presents here and there thickenings of a spheroidal shape, the white pulp (Malpighian bodies of the spleen, splenic lymphoid nodules).

These bodies vary in size from about 0.25 mm. to 1 mm. in diameter.

They are merely local expansions or hyperplasia of the adenoid tissue, of which the external coat of the smaller arteries of the spleen is formed.

They are most frequently found surrounding the arteriole, which thus seems to tunnel them, but occasionally they grow from one side of the vessel only, and present the appearance of a sessile bud growing from the arterial wall.

There are several parts of white pulp with distinct functions:

See also[edit]


This article incorporates text in the public domain from the 20th edition of Gray's Anatomy (1918)

  1. ^ Le, Tao (2011). First aid to usmle step 1 2011. p. 201. 

External links[edit]