Male Reproductive System Overview

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Questions and Answers

What function does the scrotum perform in the male reproductive system?

  • Produces seminal fluid
  • Holds the testes and regulates their temperature (correct)
  • Regulates testosterone production
  • Houses the epididymis

Which type of cells are primarily responsible for the production of testosterone in the testes?

  • Leydig cells (correct)
  • Sertoli cells
  • Interstitial cells
  • Epididymal cells

What is the primary role of the seminal vesicles in male reproductive anatomy?

  • To form the ejaculatory duct
  • To nourish sperm with prostatic fluid
  • To store mature sperm
  • To produce seminal fluid rich in fructose (correct)

What is the correct pathway that mature sperm follow to exit the male body?

<p>Ductus deferens → Ejaculatory duct → Urethra (A)</p> Signup and view all the answers

Which structure surrounds the urethra and prevents it from collapsing during erection?

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

What is the primary function of the ovaries in the female reproductive system?

<p>Production of ova and secretion of sex hormones. (C)</p> Signup and view all the answers

Which structure is responsible for transporting ova from the ovaries to the uterus?

<p>Uterine (Fallopian) Tubes (D)</p> Signup and view all the answers

What is the function of the endometrium in the uterus?

<p>To thicken in preparation for a potential pregnancy. (C)</p> Signup and view all the answers

What role do the greater vestibular (Bartholin’s) glands serve in the female reproductive system?

<p>Secretion of lubricating fluids. (B)</p> Signup and view all the answers

Which structure is NOT considered an accessory organ of the female reproductive system?

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

Flashcards

Testes function

Male gonads that produce sperm and testosterone.

Scrotum role

Pouch holding testes, regulating temperature for sperm production.

Seminiferous Tubules

Coiled structures in testes where sperm are made.

Testosterone function

Main male sex hormone for sperm production and characteristics.

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Epididymis function

Coiled tube where sperm mature and store.

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Ovary Function

Ovaries produce eggs (ova) and hormones like estrogen and progesterone, essential for female reproduction.

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Fallopian Tubes: What do they do?

Fallopian tubes transport eggs from the ovaries to the uterus and are the primary site of fertilization.

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Uterus Parts

The uterus has three main parts - the fundus (top), body (middle), and cervix (bottom).

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What does the endometrium do?

The endometrium is the inner lining of the uterus that thickens each month in preparation for potential pregnancy.

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Vagina connects...

The vagina is a canal connecting the external genitals to the uterus, allowing for sexual intercourse and childbirth.

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Study Notes

Male Reproductive System

  • Gonads (Testes): Male reproductive glands responsible for sperm production and testosterone synthesis.

Testes Structure and Function

  • Scrotum: External pouch that regulates testicular temperature for optimal sperm production.
  • Tunica Albuginea: Fibrous covering surrounding the testis.
  • Seminiferous Tubules: Coiled structures within the testes where spermatogenesis (sperm production) occurs.
  • Interstitial Cells (Leydig Cells): Cells producing testosterone, the primary male sex hormone.
  • Epididymis: Coiled tube where sperm mature and are stored after leaving the seminiferous tubules.

Pathway of Sperm

  • Ductus (Vas) Deferens: Tube carrying sperm from the epididymis to the ejaculatory duct.
  • Ejaculatory Duct: Fusion of the vas deferens and seminal vesicle duct; passes through the prostate and opens into the urethra.
  • Urethra: Common duct for both sperm and urine exiting the body.

Accessory Glands and Fluid

  • Seminal Fluid (Semen): Fluid containing sperm and produced by accessory glands.
  • Seminal Vesicles: Glands producing a significant portion of seminal fluid, rich in fructose, vital for sperm nourishment.
  • Prostate Gland: Produces a nourishing fluid to aid with sperm transport.
  • Bulbourethral Glands (Cowper's Glands): Produce a pre-ejaculatory fluid that lubricates the urethra.

External Genitalia

  • Scrotum: External pouch containing the testes.
  • Penis: Male copulatory organ.
    • Corpus Spongiosum: Erectile tissue surrounding the urethra, preventing collapse during erection.
    • Corpora Cavernosa: Two erectile tissues filling with blood for erection.
    • Glans: Sensitive tip of the penis.
    • Prepuce (Foreskin): Fold of skin covering the glans (often removed in circumcision).

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