Anatomy of Urethra
30 Questions
1 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

How long is the male urethra?

  • 22-24 cm
  • 25-27 cm
  • 18-20 cm (correct)
  • 15-17 cm

In the flaccid state, how does the long axis of the urethra appear?

  • Straight
  • Zigzag
  • S-shaped (correct)
  • Curved

Where does the male urethra terminate?

  • At the external urethral orifice at the tip of the penis (correct)
  • In the deep perineal space
  • Inside the prostate
  • At the base of the bladder

Which part of the male urethra is surrounded by sphincter urethrae?

<p>Membranous part (D)</p> Signup and view all the answers

What shape is the prostatic part of the male urethra on transverse section?

<p>Semilunar (A)</p> Signup and view all the answers

Which structure in the prostatic urethra presents a median longitudinal ridge of mucous membrane?

<p>Urethral crest (verumontanum) (B)</p> Signup and view all the answers

What is the elevation in the middle part of the crest where the slit-like orifice of prostatic utricle is situated?

<p>Colliculus seminalis (C)</p> Signup and view all the answers

Where are the openings of the ejaculatory ducts located?

<p>On each side of the orifice of prostatic utricle (A)</p> Signup and view all the answers

Which part of the male urethra begins as a continuation of the prostatic urethra?

<p>Membranous part (C)</p> Signup and view all the answers

Where are the Bulbourethral glands (of Cowper) placed in relation to the membranous urethra?

<p>One on either side of it (A)</p> Signup and view all the answers

What is the structure that is homologous with the uterus of females?

<p>Prostatic utricle (B)</p> Signup and view all the answers

How many openings do each prostatic sinus present from the prostatic glands?

<p>~20-30 openings (A)</p> Signup and view all the answers

What type of muscle is the internal urethral sphincter made of?

<p>Smooth muscle (C)</p> Signup and view all the answers

Which nerve supplies the external urethral sphincter?

<p>Pudendal nerve (D)</p> Signup and view all the answers

What is the primary function of the internal urethral sphincter?

<p>Preventing release of urine (D)</p> Signup and view all the answers

Which type of epithelium lines the lower part of the prostatic urethra?

<p>Stratified squamous non-keratinised (B)</p> Signup and view all the answers

Where do lymphatics from the spongy part of the urethra pass to?

<p>Deep inguinal, superficial inguinal, and external iliac nodes (D)</p> Signup and view all the answers

From which structures is the lower part of the prostatic and membranous urethra developed?

<p>Definitive urogenital sinus (D)</p> Signup and view all the answers

What is the lining of the upper part of the female urethra?

<p>Transitional epithelium (D)</p> Signup and view all the answers

Where does the female urethra end?

<p>External urethral orifice in the vaginal vestibule (D)</p> Signup and view all the answers

Which male structure is homologous to the paraurethral glands in females?

<p>Prostate (B)</p> Signup and view all the answers

What is the diameter of the female urethra?

<p>6 mm (D)</p> Signup and view all the answers

The penile part of the urethra in males is derived from the:

<p>Urethral plate (A)</p> Signup and view all the answers

What common infection can cause acute urethritis?

<p>Gonococcal infection (C)</p> Signup and view all the answers

What is the longest part of the penile urethra?

<p>Spongy (penile) part (B)</p> Signup and view all the answers

Where does the fixed part of the penile urethra bend downwards?

<p>Behind the pubic symphysis (B)</p> Signup and view all the answers

What is the diameter of the spongy part of the penile urethra in the body of the penis?

<p>6 mm (B)</p> Signup and view all the answers

Where is the external urethral orifice located?

<p>In the glans penis (C)</p> Signup and view all the answers

What forms a sagittal slit about 6 mm long?

<p>External urethral orifice (A)</p> Signup and view all the answers

Where do the ducts of bulbourethral glands open in the penile urethra?

<p>In the membranous part (C)</p> Signup and view all the answers

More Like This

Use Quizgecko on...
Browser
Browser