Question

Trigohe in excretory system is

• A. a urine filled cavity within the kidney
• B. a muscular sphincter at the neck of the urinary bladder
• C. a smooth connective tissue region in the urinary bladder
• D. a tunic of the ureter

Answer 1

Answer: (C)

The trigone is a smooth triangular region of the internal urinary bladder formed by the two urethral orifices and the internal urethral orifice. The area is sensitive to expansion and when stretched, signal to empty the bladders are acted upon.