(15-20 cm) prostatic urethra ings are the ureteral openings, whereas the anterio

Question

(15-20 cm) prostatic urethra ings are the ureteral openings, whereas the anterior openthe membranous form a triangle called the trigone. The two posterior open- lllee Upeings that longer ing is the opening into the urethra, the internal urethral orifice. In males, the urinary bladder is anterior to the rectum ital diaphragm, a passes through the CLINICAL NOTE: a noncancerous enla the prostatic urethre ACTIVITY 2) L Pre-Lab Activity 1 Label the urinary 9 (opening) 1 . internal urethral sphincter 5. trigone (TRY-goan) t. ureteral openings 36.5 . detrusor muscle of urinary bladder external urethral orifice external urethral sphictr. ureters internal urethral orificeurethra Lab Activity 1 Identify the struct g urogenital models DISCUSSION URINARY B 1 Is the urinary bl answer. FIGURE 36.4 female. Ureters, urinary bladder, and urethra in a

Explanation / Answer

1. Internal urethral sphincter

2. Ureters

3. Detrusor muscle of urinary bladder

4. Ureteral openings

5. Trigone

6. Internal urethral orifice

7. Urethra

8. External urethral sphincter

9. External urethral orifice

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