Urinary Bladder and Urethra Anatomy
18 Questions
4 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the length of the male prostatic urethra?

  • 16 cm
  • 1 cm
  • 3 cm (correct)
  • 8 inches (20 cm)
  • Where does the female urethra extend to externally?

  • Abdominal cavity
  • Vaginal opening
  • Perineal membrane
  • External urethral orifice (correct)
  • Which part of the male urethra is the narrowest?

  • Prostatic urethra
  • Penile (spongy) urethra (correct)
  • Superior surface bulging into abdominal cavity
  • Membranous urethra
  • Which structure surrounds the male membranous urethra?

    <p>External urethral sphincter</p> Signup and view all the answers

    Where does the venous drainage of the male anterior urethra lead to?

    <p>Prostatic plexus</p> Signup and view all the answers

    In males, where does the posterior urethra drain lymphatic fluid to?

    <p>Deep inguinal lymph nodes</p> Signup and view all the answers

    Where is the urinary bladder located in adults when empty?

    <p>Pelvic region</p> Signup and view all the answers

    What structure connects the apex of the bladder to the umbilicus?

    <p>Median umbilical ligament</p> Signup and view all the answers

    Which part of the bladder is related to the vas deferentia and seminal vesicles in males?

    <p>Base (Posterior surface)</p> Signup and view all the answers

    In females, what structure is reflected near the post border of the superior surface of the bladder?

    <p>Vesicouterine pouch</p> Signup and view all the answers

    What lies above the infrolateral surfaces of the male bladder?

    <p>Obturator internus</p> Signup and view all the answers

    What structure accommodates the distention of the bladder and is continuous with fat in the anterior abdominal wall?

    <p>Retropubic fat</p> Signup and view all the answers

    Which structure forms the floor of the retropubic space in both males and females?

    <p>Pubovesical ligament</p> Signup and view all the answers

    Which part of the bladder is related to the pelvic fascia in females?

    <p>Neck</p> Signup and view all the answers

    What is the role of the median umbilical ligament in bladder anatomy?

    <p>Forms the floor of the retropubic space</p> Signup and view all the answers

    Which area of the bladder is located between the two ureter openings and the urethra?

    <p>Trigone</p> Signup and view all the answers

    What is the primary arterial supply to the bladder?

    <p>Internal iliac artery</p> Signup and view all the answers

    Which nerve fibers transmit pain sensation resulting from overdistention of the bladder?

    <p>Sensory fibers</p> Signup and view all the answers

    Study Notes

    Urethra Length and Structure

    • Male prostatic urethra measures approximately 3 cm in length.
    • Female urethra extends externally to the vaginal opening.

    Urethra Features

    • The narrowest part of the male urethra is the membranous urethra.
    • The membranous urethra is surrounded by the external urethral sphincter.

    Venous and Lymphatic Drainage

    • Venous drainage of the male anterior urethra is directed to the internal pudendal vein.
    • Posterior urethra in males drains lymphatic fluid to the internal iliac lymph nodes.

    Urinary Bladder Anatomy

    • When empty, the urinary bladder is located in the lesser pelvis, posterior to the pubic symphysis in adults.
    • The median umbilical ligament connects the apex of the bladder to the umbilicus.

    Bladder Relationships

    • The posterior surface of the bladder in males is related to the vas deferentia and seminal vesicles.
    • In females, the peritoneum is reflected near the posterior border of the superior surface of the bladder.

    Adjacent Structures

    • The inferolateral surfaces of the male bladder are situated above the prostate gland.
    • A layer of fascia accommodates bladder distention and is continuous with the subcutaneous fat in the anterior abdominal wall.

    Pelvic Spaces

    • The floor of the retropubic space is formed by the pubic symphysis anteriorly and the bladder posteriorly in both sexes.
    • The pelvic fascia in females is related to the superior surface of the bladder.

    Ligament Functions and Bladder Areas

    • The median umbilical ligament serves the role of supporting the bladder and maintaining its position.
    • The trigone area is located between the two ureter openings and the urethra, representing a smooth triangular region.

    Blood Supply and Sensation

    • The primary arterial supply to the bladder comes from the superior and inferior vesical arteries.
    • Pain sensation from bladder overdistention is transmitted by visceral nerve fibers.

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Learn about the anatomy of the urinary bladder and urethra, their location, shape, and relations, which vary with the amount of urine. Understand how an empty bladder changes from being a pelvic to an abdominal organ as it fills up.

    More Like This

    Use Quizgecko on...
    Browser
    Browser