O n July 2, 1908, a littlebaby boy was born inBaltimore, Maryland.His parents named himThoroughgood Marshall after hisgreat-grandfather, a formerslave who fought as a freed manfor the Union Army during theCivil War.
Bowman's capsule (or the Bowman capsule, capsula glomeruli, or glomerular capsule) is a cup-like sac at the beginning of the tubular component of a nephron in the mammalian kidney that performs the first step in the filtration of blood to form urine. glomerulus is enclosed in the sac. Fluids from blood in the glomerulus are collected in the Bowman's capsule (i.e., glomerular filtrate) and further processed along the nephron to form urine. This process is known as ultrafiltration.
The Bowman's capsules are packed in the cortex of the kidney, the tubules and collecting ducts descend into the medulla. The image on the left shows a cut section of the cortex of a mouse kidney as seen under the scanning electron microscope. Near the top (center) can be seen a Bowman's capsule with its glomerulus. A capillary network within the Bowman's capsule. 2  Blood leaving the glomerulus passes into a second capillary network surrounding the. 3  Proximal convoluted tubule. 4  Coiled and lined with cells carpeted with microvilli and stuffed with mitochondria.