Final answer:
Surrounding the urinary bladder is the Perivesical tissue. The infrarenal region is located below the kidneys, and a large kidney stone would likely be found in the ureters. The renal pelvis is a funnel-shaped structure, not a bone, and nephrons are the functional units of the kidney, found in the renal cortex.
Step-by-step explanation:
Surrounding the urinary bladder, the correct option is Perivesical. This term refers to the tissue surrounding the urinary bladder.
Infrarenal means below the kidneys and this term is often used when discussing the area relative to the renal arteries or the parts of the aorta that are below the kidneys. In the context of kidney stones preventing the flow of urine to the bladder, the stone is likely located in the ureters, the tubes that carry urine from the kidneys to the bladder. The ureters are designed to move urine via waves of peristalsis, and if a stone is large enough to cause a blockage, it prevents urine from reaching the bladder.
The renal pelvis is not a bone; it is the funnel-shaped structure in the hilum of each kidney where urine collects before entering the ureter. The functional unit of the kidney is the nephron, which resides in the renal cortex and is responsible for filtering the blood and forming urine.
Regarding male urinary system-specific structures, the urethra is related to the urinary system but also plays a role in the male reproductive system as it conducts semen during ejaculation.