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.
The Nephron Tubules. This filtrate enters the tubule system of the nephron. In these tubules, some substances are added to the filtrate as part of the urine formation and some substances are reabsorbed out of the filtrate and back into the blood. The tubules are divided into 4 segments.