Bowman's Capsule

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Bowman's capsule

[¦bō·mənz ′kap·səl]
A two-layered membranous sac surrounding the glomerulus and constituting the closed end of a nephron in the kidneys of all higher vertebrates.

Bowman’s Capsule


(named after the 19th-century English physician W. Bowman), a cuplike cul-de-sac of the uriniferous tubule of the kidneys of vertebrate animals and humans. Bowman’s capsule surrounds the glomerulus and together they form the malpighian body. The wall of Bowman’s capsule consists of an inner and outer layer, between which is a gap—the cavity of Bowman’s capsule—lined with a flat epithelium. The inner layer adheres to the glomerulus, and the outer layer becomes the beginning of the uriniferous tubule. In Bowman’s capsule, so-called primary urine is formed.

References in periodicals archive ?
These four factors include the permeability of the capillary walls, the hydrostatic pressure in the glomerular capillaries, the hydrostatic pressure in the glomerular capsule, and the osmotic pressure of the circulating plasma proteins (Gilbert & Harmon, 1993).
Briefly, 10 glomerular capsules and 10 fields without vessels or glomeruli were randomly selected from each kidney section.