204 DR 2: Male Pelvic Region

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Questions and Answers

What is the origin of the gonadal artery?

  • External iliac artery
  • Internal iliac artery
  • Aorta (~L2 vertebral level) (correct)
  • Common iliac artery

What is the function of the cremasteric artery?

  • To drain into the spermatic cord
  • To innervate the internal urethral sphincter
  • To supply the scrotal wall (correct)
  • To regulate the temperature of the testes

Which pelvic artery supplies the region indicated by pin3 (superior bladder)?

  • Middle rectal artery
  • Superior vesical arteries (correct)
  • Inferior vesical arteries
  • Internal pudendal artery

What is the mechanism of thermoregulation in the male reproductive system?

<p>Refer to slide 12 of lecture T2L3 (B)</p> Signup and view all the answers

Where do the right and left testicular veins drain?

<p>Right: inferior vena cava (IVC), Left: left renal vein (D)</p> Signup and view all the answers

What is the location of the prostate?

<p>Inferior to the bladder (B)</p> Signup and view all the answers

What is the function of the gubernaculum?

<p>To derive the scrotal ligament (C)</p> Signup and view all the answers

What component of the autonomic innervation mediates contraction of the bladder muscle wall?

<p>Parasympathetic nervous system (C)</p> Signup and view all the answers

What is the primary function of prostatic acid phosphatase (PAP)?

<p>Regulating growth and metabolism of glandular epithelium (B)</p> Signup and view all the answers

What is the source of blood supply to the prostate?

<p>Inferior vesical arteries (C)</p> Signup and view all the answers

Which structures form the ejaculatory ducts?

<p>Seminal duct and ductus deferens (D)</p> Signup and view all the answers

Which erectile body forms the glans of the penis?

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

What is the main function of Sertoli cells?

<p>Supporting and nourishing developing sperm cells (A)</p> Signup and view all the answers

What is the origin of spermatogonia?

<p>Primordial germ cells (C)</p> Signup and view all the answers

Which nerve branch provides motor supply to the muscles within the deep and superficial perineal pouches?

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

Which process of cell division do spermatocytes undergo?

<p>Meiosis I and II (C)</p> Signup and view all the answers

What is the primary function of Sertoli cells in the developing gonad?

<p>To secrete factors that promote development of spermatogonia (B)</p> Signup and view all the answers

Which cell population of the developing gonad forms Sertoli cells?

<p>Somatic support cells (C)</p> Signup and view all the answers

What is the function of the cavernous nerves in the male reproductive system?

<p>To induce erection through the parasympathetic nervous system (A)</p> Signup and view all the answers

What is the primary function of the sympathetic nervous system in the male reproductive tract?

<p>To regulate the smooth muscle contraction in the male reproductive tract (A)</p> Signup and view all the answers

What is the primary function of the internal urethral sphincter?

<p>To prevent retrograde passage of semen into the bladder (B)</p> Signup and view all the answers

What is the innervation of the bulbospongiosus muscle?

<p>Perineal branches of the pudendal nerve (A)</p> Signup and view all the answers

What is the primary function of the bulbospongiosus muscle?

<p>To facilitate the expulsion of seminal fluid (B)</p> Signup and view all the answers

What is the cause of degradation of the paramesonephric ducts in the XY individual?

<p>Due to presence of anti-Mullerian hormone released by Sertoli cells (A)</p> Signup and view all the answers

What is the result of misexpression of anti-Mullerian hormone or its receptor in the XY individual?

<p>Persistent development of the paramesonephric duct (C)</p> Signup and view all the answers

What is the term for the condition where the paramesonephric duct continues to develop in the XY individual?

<p>Persistent Mullerian duct syndrome (B)</p> Signup and view all the answers

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