Distinguish between a renal corpuscle and a renal tubule

In the kidney the renal corpuscle are part of a nephron that consists of a glomerulus and a glomerular capsule (Bowman's capsule) they are used to filter blood in the nephron before urine is formed.

While renal tubule is a part of a nephron it is an extension of the renal corpuscle to the collecting duct

The renal tubule contains filtrate collected from the renal capsules and empties it into the duct system. The tubule allows the reabsorbption of filtrate back into the blood.