Asterix (character) Asterix (French: AstÃ©rix) is a fictional character the titular hero of the French comic book series The Adventures of Asterix. The series portrays him as a diminutive but fearless Gaulish warrior living in the time of Julius Caesar's Gallic Wars.
Basically, a nephron comprises a renal tubule and blood vessels. The renal tubule expands into a cup-shaped structure called the Bowman's Capsule, which contains a ball of capillaries known as the Glomerulus. The Glomerulus is the primary structure of the filtering process.
Filtration, Reabsorption, and Secretion. 1  The kidneys filter blood as it passes through the capillaries that form the glomerulus. Blood pressure forces most of the blood plasma through the lining of the capillaries and into the glomerular capsule.