Male Reproductive System Anatomy
38 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

What is the main function of Sertoli cells in the seminiferous tubules?

  • Formation of the blood-testis barrier
  • Secretion of testosterone hormone
  • Production of sperm cells
  • Support and nourishment of developing sperm cells (correct)

    • What is the name of the structure that forms when vasa efferentia gather together?

  • Tail of epididymis
  • Body of epididymis
  • Rete testis
  • Head of epididymis (correct)

    • What type of cells line the vasa efferentia?

  • Columnar cells
  • Sertoli cells
  • Cuboidal cells
  • Festooned epithelial cells (correct)

    • What is the length of the duct of epididymis?

    <p>6 meters</p> Signup and view all the answers

    What is the name of the structure that branches and anastomoses in the mediastinum testis?

    <p>Rete testis</p> Signup and view all the answers

    What is the name of the duct that receives sperm from the epididymis?

    <p>Vas deferens</p> Signup and view all the answers

    What is the diameter of the duct of epididymis?

    <p>400 µm</p> Signup and view all the answers

    What is the function of the epididymis?

    <p>Maturation and storage of sperm cells</p> Signup and view all the answers

    What type of epithelium is found in the epididymis?

    <p>Pseudostratified columnar epithelium with stereocilia</p> Signup and view all the answers

    Which part of the urethra is the longest?

    <p>Penile urethra</p> Signup and view all the answers

    What is the function of the epididymis?

    <p>Storage, maturation, and nutrition of sperms</p> Signup and view all the answers

    What type of muscles surrounds the vas deferens?

    <p>Smooth muscles</p> Signup and view all the answers

    What is the length of the ejaculatory duct?

    <p>1 cm</p> Signup and view all the answers

    What is the function of the testis?

    <p>Formation of sperms</p> Signup and view all the answers

    What type of epithelium is found in the prostatic urethra?

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

    What is the characteristic of the epithelium in the mucosa of the vas deferens?

    <p>Cilia are lost at the upper part</p> Signup and view all the answers

    What is the function of the prostatic acini?

    <p>To secrete thin milky fluid</p> Signup and view all the answers

    What is the main component of seminal fluid?

    <p>Seminal vesicle fluid</p> Signup and view all the answers

    What is the function of the bulbourethral glands?

    <p>To secrete clear mucus for lubrication</p> Signup and view all the answers

    What is the epithelial lining of the prostate gland?

    <p>Pseudostratified columnar epithelium</p> Signup and view all the answers

    What is the function of the seminal vesicles?

    <p>To add sperm-activating substances</p> Signup and view all the answers

    What is the structure of the penis?

    <p>Formed of erectile tissue</p> Signup and view all the answers

    What is the function of corpora amylacea?

    <p>To form calcified dried prostatic concretion</p> Signup and view all the answers

    What type of muscle is found in the prostate gland?

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

    What type of muscle surrounds the penile urethra?

    <p>Skeletal muscle</p> Signup and view all the answers

    What is the function of the glands of Littre?

    <p>To secrete mucus for lubrication</p> Signup and view all the answers

    How many types of mucous glands are found in the male urethra?

    <p>2</p> Signup and view all the answers

    What is the largest male accessory sex gland?

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

    What is the composition of the stroma in the prostate gland?

    <p>Fibromuscular and reticular</p> Signup and view all the answers

    What is the function of the trabeculae in the prostate gland?

    <p>To divide the gland into lobes and lobules</p> Signup and view all the answers

    How many groups of acini are found in the prostate gland?

    <p>3</p> Signup and view all the answers

    What type of epithelium lines the prostatic acini?

    <p>Pseudostratified columnar epithelium</p> Signup and view all the answers

    What type of epithelium is present in the epididymis?

    <p>Pseudostratified columnar ciliated epithelium with stereocilia</p> Signup and view all the answers

    What is the function of the tunica albuginea?

    <p>To surround the corpora cavernosa</p> Signup and view all the answers

    What is the structure that separates the two corpora cavernosa?

    <p>Incomplete septum</p> Signup and view all the answers

    What is the function of the corpus spongiosum?

    <p>To facilitate urethral opening</p> Signup and view all the answers

    What type of epithelium is present in the vas deferens?

    <p>Pseudostratified columnar ciliated epithelium with stereocilia</p> Signup and view all the answers

    What is the function of the prostate?

    <p>To produce prostatic fluid</p> Signup and view all the answers

    Study Notes

    Male Genital System

    • The male genital system consists of the testes, epididymis, vas deferens, ejaculatory duct, urethra, prostate, seminal vesicles, and bulbourethral glands.

    Intratesticular Ducts

    • Intratesticular ducts include:
      • Tubuli recti: straight tubules lined with Sertoli cells
      • Rete testis: branched and anastomosed in the mediastinum testis, lined with cuboidal cells

    Extratesticular Ducts

    • Extratesticular ducts include:
      • Vasa efferentia: 10-20 tubules gathered to form the head of the epididymis, lined with festooned epithelium (tall columnar ciliated cells alternating with low columnar secretory cells)
      • Epididymis: formed of head, body, and tail, lined with pseudostratified columnar ciliated epithelium with stereocilia
      • Vas deferens: lined with pseudostratified columnar ciliated epithelium with stereocilia
      • Ejaculatory duct: formed by the fusion of the ampulla of the vas deferens and the duct of the seminal vesicle, lined with pseudostratified columnar epithelium
      • Male urethra: 15-20 cm long, divided into prostatic, membranous, and penile urethra

    Epididymis

    • Epididymis:
      • Length: 50 cm (intratesticular ducts), 6 meters (extratesticular ducts)
      • Diameter: 200 µm (intratesticular ducts), 400 µm (extratesticular ducts)
      • Lining: pseudostratified columnar ciliated epithelium with stereocilia
      • Function: storage, maturation, and nutrition of sperm

    Vas Deferens

    • Vas deferens:
      • Lining: pseudostratified columnar ciliated epithelium with stereocilia
      • Musculosa: thick, with 3 layers of smooth muscle
      • Adventitia: loose connective tissue

    Ejaculatory Duct

    • Ejaculatory duct:
      • Length: 1 cm
      • Formed by the fusion of the ampulla of the vas deferens and the duct of the seminal vesicle
      • Opens in the prostatic urethra
      • Lining: pseudostratified columnar epithelium

    Male Urethra

    • Male urethra:
      • Prostatic urethra: 3-4 cm long, traverses the prostate
      • Membranous urethra: 1-2 cm long, intermediate part
      • Penile urethra: 12-14 cm long, in the corpus spongiosum of the penis
      • Lining: transitional epithelium (prostatic urethra), stratified columnar epithelium (membranous and penile urethra)

    Male Accessory Sex Glands

    • Male accessory sex glands:
      • Prostate: largest male accessory gland, surrounds the bladder neck, traversed by the prostatic urethra
      • Seminal vesicles: 2 highly tortuous tubes, 15 cm long, formed of mucosa, musculosa, and adventitia
      • Bulbourethral (Cowper’s) glands: 3-5 mm in diameter, empty into the membranous urethra

    Prostate

    • Prostate:
      • Histology: stroma (capsule, trabeculae, reticular stroma) and parenchyma (tubuloalveolar acini)
      • Function: secretes a thin, milky fluid
      • Prostatic acini: lined with columnar, cuboidal, or pseudostratified columnar epithelium

    Seminal Vesicles

    • Seminal vesicles:
      • Function: provides 70% of seminal fluid, adds sperm-activating substances (fructose, citrate, proteins, PGs)

    Bulbourethral Glands

    • Bulbourethral glands:
      • Function: secretes clear mucus for lubrication
      • Histology: stroma (thin C.T capsule, septa containing skeletal and smooth muscles) and parenchyma (tubuloalveolar glands)

    Penis

    • Penis:
      • Covered with skin, no subcutaneous fat, hairs only at the root
      • Formed of erectile tissue: 2 corpora cavernosa and 1 corpus spongiosum
      • Each corpus is formed of blood spaces separated by C.T + smooth muscle + elastic fibers
      • Tunica albuginea + fascia penis then skin
      • 2 Corpora cavernosa are separated by an incomplete septum

    Studying That Suits You

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

    Quiz Team

    Description

    This quiz covers the anatomy and histology of the male genital system, including the structure and function of the seminiferous tubules, Sertoli cells, and blood testis barrier, as well as the stages of spermatogenesis and spermiogenesis.

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser