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SYSTEM HISTOLOGY II > HISTOLOGY OF THE MALE REPRODUCTIVE SYSTEM > Flashcards

HISTOLOGY OF THE MALE REPRODUCTIVE SYSTEM Flashcards

1
Q

The internal male genitalia consist of the

  1. ______
  2. _____
  3. ______
  4. ______
A
  1. testes
  2. epididymis
  3. vas deferens and
  4. the accessory sex glands (Seminal vesicles, the prostrate, the bulbourethral glands)
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2
Q
  • Spermatozoa leave the seminiferous tubules via the ____1_____
  • From the tubuli recti to the ____2___ and ___3___ which lead to the extratesticular ducts
  • From the ____4____ to the Ductus epididymis .
  • From the ____5___ to the Ductus / Vas deferens
  • From the ____6____ to the Ejaculatory ducts of the prostate
  • From the ____7____ to the Urethra
A
  1. tubuli recti
  2. rete testis
  3. efferent ductules
  4. extratesticular ducts
  5. Ductus epididymis
  6. Ductus / Vas deferens
  7. Ejaculatory ducts of the prostate
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3
Q

______ produce the male gametes or spermatozoa, and

male sexual hormone, testosterone

A

The Testes

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4
Q

_________ stimulates the accessory male sexual organs and causes the development of the masculine extra genital sex characteristics.

A

TESTOSTERONE (MALE SEXUAL HORMONE)

NB; Testosterone iis produced by the TESTES

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5
Q

THE HISTOLOGY OF THE TESTIS :
It is surrounded by a thick capsule the____1___, the___2____ , projects into the testis.

The tunica albuginea is covered externally by a____3___.

the mediastinum, delicate fibrous septa that radiate towards the tunica albuginea and divide the parenchyma of the testis intoabout___4___lobuli testis,

Each lobule contains ___5___(about 150-300 µm in diameter, 30-80 cm long).
Each seminiferous tubule continues as a____6___.

The straight tubules or Tubulus Rectus or Tubulus Recti continue into the__7__, a labyrinthine system of cavities in the mediastinum.

A
  1. tunica albuginea
  2. mediastinum testis
  3. serosa
  4. 300 lobuli testis
  5. 1-4convoluted seminiferous tubules
  6. tubulus rectus or recti
  7. rete testis
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6
Q

The testis is surrounded by a thick capsule called the________

A

tunica albuginea

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7
Q

the_____ projects into the testis.

A

mediastinum testis

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8
Q

The tunica albuginea is covered externally by a_______

A

serosa.

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9
Q

the mediastinum, delicate fibrous septa that radiate towards the tunica albuginea and divide the parenchyma of the testis intoabout _________,

A

300lobuli testis

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10
Q

Each seminiferous tubule continues as a_______

A

Straight tubules or tubulus rectus or tubulus recti

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11
Q

The straight tubules or Tubulus Rectus or Tubulus Recti continue into the________, a labyrinthine system of cavities in the mediastinum.

A

rete testis

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12
Q

Each lobule contains 1-4convoluted _______

A

seminiferous tubules

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13
Q

THE SEMINIFEROUS TUBULES
The seminiferous tubules are lined with ____1___ and ___2___.

The interstitial connective tissue is continuous with the mediastinum testis and contains ____3_____.

the seminiferous tubules terminate in the straight tubules or tubulus rectus lined with______4__ that are devoid of spermatogenic cells.
Straight tubules continue into the ____5__ an irregular, anastomosing network of tubules with wide lumina lined by a ___6___epithelium

A
  1. spermatogenic epithelium
  2. Sertoli cells or Sustentacular cells
  3. Leydig Cells
  4. Cuboidal or low columnar epithelium
  5. rete testis
  6. simple squamous to low cuboidal or low columnar
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14
Q

The seminiferous tubules are lined with _______ and ______.

A

spermatogenic epithelium and sertoli cells or sustentacular cells

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15
Q

The interstitial connective tissue is continuous with the _______ and contains Leydig Cells

A

mediastinum testis

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16
Q

the straight tubules are lined with _______ epithelium that are devoid of spermatogenic cells.

A

cuboidal or low columnar epithelium

17
Q

the rete testis is lined by a ______epithelium

A

simple squamous to low cuboidal or low columnar

18
Q

The ________ connect the rete testis with the epididymis.

A

ductuli efferentes or efferent ductules

19
Q

The ductuli efferentes is lined by a ______epithelium

A

groups of tall columnar cells (with cilia) that alternate with groups of shorter cuboidal cells (with microvilli).

20
Q

______ are the supportive cells of the testes that are located among the spermatogenic cells in the seminiferous tubules

A

Sertoli cells

21
Q

Function of Sertoli Cells:

  5. 6.
    7.
A
  1. Physical support ,protection, and nutrition of the developing sperm (spermatids)
  2. Phagocytosis of excess cytoplasm (residual bodies) from the developing spermatids
  3. Release of mature sperm called spermiation into the lumen of seminiferous tubules
  4. Secretion of fructose-rich testicular fluid for nourishment and transport of sperm to the excurrent ducts
  5. • Production and release of androgen-binding protein (ABP)
  6. Production and release of the anti-müllerian hormone,also called müllerian-inhibiting
  7. Secretion of the hormone inhibin,
22
Q

Function of Sertoli Cells:

  1. Physical support ,protection, and nutrition of the _______
  2. ______ of excess cytoplasm (residual bodies) from the developing spermatids
  3. Release of mature sperm called _______ into the lumen of seminiferous tubules
  4. Secretion of ____________ for nourishment and transport of sperm to the excurrent ducts
  5. • Production and release of ___________
  6. Production and release of the anti-müllerian hormone,also called _________
  7. Secretion of the hormone ______
A
  1. developing sperm (spermatids)
  2. Phagocytosis
  3. spermiation
  4. fructose-rich testicular fluid
  5. androgen-binding protein (ABP)
  6. müllerian-inhibiting hormone
  7. inhibin
23
Q

_________________ binds to and increases the concentration of testosterone in the lumen of the seminiferous tubules that is necessary for spermatogenesis.

A

Androgen-binding protein (ABP)

24
Q

_______ secretion is under the control of follicle-stimulating hormone (FSH) from the pituitary gland

A

Androgen-binding protein (ABP)

25
Q

______ which suppresses the release of FSH from the pituitary gland

A

Inhibin

26
Q

__________ suppresses the development of müllerian ducts in the male and inhibits the development of female reproductive organs

A

müllerian-inhibiting hormone

27
Q

Normal spermatogenesis is dependent on the action of ____1____ and ____2____ produced by gonadotrophs in the adenohypophysis (anterior pituitary gland) of the pituitary gland.

A
  1. luteinizing hormone (LH)

2. follicle-stimulating hormone (FSH)

28
Q

____1____ binds to receptors on ___2___ and stimulates them to synthesize the hormone testosterone.

A
  1. Luteinizing hormone (LH)

2. interstitial cells or Leydig cells

29
Q

____1____ stimulates Sertoli cells to synthesize and release ____2___ into the seminiferous tubules.

A
  1. Follicle-stimulating hormone (FSH)

2. Androgen-binging protein (ABP)

30
Q

_____1____ combines with _____2____ and increases its concentration in the seminiferous tubules,which then stimulates spermatogenesis.

A
  1. Androgen-binging protein (ABP)

2. testosterone

31
Q

The hormone _____1___, also secreted by the Sertoli cells, has an inhibitory effect on the pituitary gland and suppresses or inhibits additional production of ______2____

A
  1. inhibin

2. Follicle-stimulating hormone (FSH)

32
Q

the lumen of the ductuli efferentes are lining epithelium consists of ___________

A

tall ciliated and shorter nonciliated cells.

33
Q

_________

connect the rete testis with the ductus epididymis.

A

The ductuli efferentes (or efferent ductules

34
Q

As the ductuli efferentes terminate in the ductus epididymis, the lumina are lined with ________

A

pseudostratified columnar epithelium

35
Q

The Accessory reproductive glands include:

  2. 3.
A
  1. Seminal Vesicles
  2. Prostate Gland
  3. Bulbourethral Gland
36
Q

The Seminal vesicles produces:
1. _______ viscous fluid high in fructose

  1. Energy source for _____
  2. Produce _____ found in semen
A
  1. Yellowish
  2. sperm motility
  3. most fluid
37
Q

Prostate gland produce:

  1. Produce thin, _____ slightly acidic fluid
  2. The enzyme _______ liquefies the semen after ejaculation.
A
  1. watery

2. fibrinolysin

38
Q

Bulbourethral glands produce:

  1. Produce clear, viscid, ______ secretion during erotic stimulation
  2. As lubricant for the _________.
A
  1. mucus-like

2. penile urethra

39
Q

The glandular epithelium of the seminal vesicles is usually ______________

A

low pseudostratified and low columnar or cuboidal.

SYSTEM HISTOLOGY II (1 decks)

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