Urine drains from the urinary bladder via the
a. ureteral orifices
b. papillary calyces
c. ureters
d. urethra

The correct answer is option 'd': Urethra.

Explanation:

After the filtration of the blood in the nephrons of the kidney the rejected material from the blood is termed as urine via a process known as glomerural filtration. The kidneys are connected to the bladder that acts as a storage of urine via tubes known as ureters. From the bladder the urine drains through urethra and is ejected through the organs for urine ejection in both males and females. For urination the bladder walls contract forcing the urine out via the urethra.

diabtes type 1

explanation:

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I hope I helped!~

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