Sphincter muscle in urinary system present near the junction of:
Correct answer: C. Urinary bladder and urethra
- A. Pelvis and ureter
- B. Ureter and urinary bladder
- C. Urinary bladder and urethra
- D. Urethra and ureter
Explanation
The internal urethral sphincter is a urethral sphincter muscle which constricts the internal urethral orifice. It is located at the junction of the urethra with the urinary bladder and is continuous with the detrusor muscle, but anatomically and functionally fully independent from it.
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About Homeostasis
Homeostasis maintains a stable internal environment through the kidney and urinary system, thermoregulation and excretion. The kidney topics include filtration, selective reabsorption, urine formation and water balance, while thermoregulation involves sweating, vasodilation, vasoconstriction and hormonal control; excretion is different from egestion, which removes undigested food.
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