Please note: the renal corpuscle has TWO components: Bowman's capsule, and the capillary tuft inside it, the glomerulus. It's incorrect to call the assembled corpuscle a "glomerulus," though most of the time the term is used that way. The glomerulus is sealed into the renal corpuscle at the corpuscle's urinary pole; putative urine is collected at the opposite end, the urinary pole, which marks the beginning of the proximal tubule.