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HISTOLOGY LEC > TOPIC 17 - MALE REPRODUCTIVE SYSTEM > Flashcards

TOPIC 17 - MALE REPRODUCTIVE SYSTEM Flashcards

1
Q

Components of male reproductive system

A
  1. Testes
  2. Genital ducts
  3. Accessory glands
  4. Penis
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2
Q

What is the dual function of testes?

A

To produce spermatozoa & hormones

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3
Q

One of the metabolites of testosterone that is necessary for the physiology of men.

A

Dihydrotestosterone

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4
Q

Each testes is surrounded by a thick capsule of dense connective tissue called ?

A

Tunica vaginalis

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5
Q

T. albuginea is thicken on the ____ surface of the testis to form ____ ____.

A

posterior, mediastinum testis

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6
Q

This structure is where fibrous septa penetrate the gland, dividing it into about 250 pyramidal compartments called the testicular lobules.

A

Mediastinum testis

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7
Q

The testicular septa is complete. True or False?

A

False, incomplete.

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8
Q

In testes, this produces male reproductive cells, spematozoa.

A

Seminiferous tubules

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9
Q

Approximately how many seminiferous tubules are present in each testicle ?

A

250 to 1000

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10
Q

The combined length of the tubules of one testis is about ?

A

250 meters

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11
Q

The seminiferous tubules are convoluted and have the form of loops at whose ends the lumen narrows and continues in short segments, known as ?

A

Straight tubules/Tubuli recti

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12
Q

The straight tubules/tubuli recti connect the seminiferous tubules to an anastomosing labyrinth of epithelium-lined channels called ?

A

Rete testis

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13
Q

About 10 to 20 ____ ____ connect the rete testis to the cephalic portion of the epididymis.

A

Ductuli efferentes

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14
Q

The seminiferous tubules are lined with a complex stratified epithelium called ?

A

Germinal/seminiferous epithelium

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15
Q

The outer wall of seminiferous tubules are surrounded by what type of connective tissue ?

A

Fibrous connective tissue

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16
Q

The innermost layer of seminiferous tubules, adhering to basal lamina, is consists of flattened ____ cells.

A

Myoid

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17
Q

The process by which spermatozoids are formed.

A

Spermatogenesis

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18
Q

Primitive germ cell of male

A

Spermatogonium

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19
Q

Final stage of production of spermatozoids

A

Spermiogenesis

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20
Q

The spermatids can be distinguished by their small size (7 to 8 m in diameter) and by nuclei with areas of condensed ____.

A

chromatin

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21
Q

Cell division occurs during spermiogenesis. True or False?

A

False

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22
Q

Spermiogenesis is a complex process. What are these processes ?

A
  • Formation of acrosome
  • Condensation and elongation of the nucleus
  • Loss of much of the cytoplasm
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23
Q

The end result of spermiogenesis is ?

A

Spermatozoon

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24
Q

Division of each secondary spermatocyte results in 2 cells that contain ____ chromosomes, named as ____.

A

23, spermatids

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25
Q

S phase occurs between the first and second meiotic divisions of spermatocytes. True or False?

A

False

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26
Q

In spermatids, small periodic granules are present in Golgi complex and is termed as ?

A

Proacrosomal granules

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27
Q

The ____ migrate to a position near the cell surface and opposite the forming acrosome.

A

Centrioles

28
Q

In golgi complex of spermatids, proacrosomal granules subsequently coalesce to form a single ____ ____ within a membrane limited ____ ____.

A

acrosomal granule, acrosomal vesicle

29
Q

The last stage of Golgi phase of spermatids happens when ____ ____ begins to form and the centrioles migrate back toward the nucleus, spinning out axonemal components as they move.

A

flagellar axoneme

30
Q

Cells that are elongated and pyramidal and are partially envelops of spermatogenic lineage.

A

Sertoli cells

31
Q

Tubuli recti, rete testis, and ductuli efferentes are collectively known as ?

A

Intratesticular genital ducts

32
Q

These ducts carry spermatozoa and liquid from the seminiferous tubules to the ductus epididymis.

A

Intratesticular genital ducts

33
Q

Tubuli recti empty into the rete testis. True or False?

A

True

34
Q

Rete testis is lined with what type of epithelium ?

A

Cuboidal epitheliumm

35
Q

From the ductuli efferentes extend the rete testis. True or False ?

A

False, other way around.

36
Q

Intratesticular genital ducts both contain non-ciliated cuboidal cells and ciliated cells. True or False?

A

True

37
Q

Ductus epididymis, ductus deferens. and urethra are collectively known as ?

A

Excretory genital ducts

38
Q

Epididymis is lined by what type of epithelium ?

A

Pseudostratified columnar epithelium

39
Q

The surface of epithelium of epididymis is covered by long, branched, irregular microvilli called ?

A

Stereocilia

40
Q

A straight tube with a thick, muscular wall, continues towards the prostatic urethra and empties into it.

A

Ductus deferens

41
Q

Ductus deferens is lined by what type of epithelium ?

A

Pseudostratified columnar epithelium with stereocilia

42
Q

Wide lumen is present in ductus deferens. True or False?

A

False, narrow

43
Q

The ductus deferens forms part of spermatic cord. Spermatic cord is comprised of ?

A
  1. Testicular artery
  2. Pampiniform plexus
  3. Nerves
44
Q

Before ductus deferens enters the prostate, it dilates first forming a region called the ?

A

Ampulla

45
Q

At the final portion of the ampulla, the ____ ____ join the duct.

A

Seminal vesicles

46
Q

The ductus deferens enters the prostate, opening into the prostatic urethra. The segment entering the prostate is called the ?

A

Ejaculatory duct

47
Q

The mucous layer of the ductus deferens continues through the ampulla into the ejaculatory duct, but the ____ layer ends after the ampulla.

A

muscle

48
Q

Two highly tortuous tubes that has a folded mucosa that is lined with cuboidal or pseudostratified columnar epithelium rich in secretory granules.

A

Seminal vesicles

49
Q

Seminal vesicles are approximately how long ?

A

15 cm.

50
Q

The seminal vesicles are reservoir for spermatozoa. True or False?

A

False

51
Q

Give some examples of spermatozoa-inactivating substances.

A
  1. Carbohydrates
  2. Citrate
  3. Inositol
  4. Prostaglandins
52
Q

Collection of 30-50 branched tubuloalveolar glands on which their ducts empty into prostatic urethra.

A

Prostate

53
Q

Distinct zone of prostate that occupies 25%.

A

Central zone

54
Q

Distinct zone of prostate that occupies 70% and is the major site of prostatic cancer.

A

Peripheral zone

55
Q

Distinct zone of prostate that has medical importance because it is the site at which most benign prostatic hyperplasia originates.

A

Transition zone

56
Q

The tubuloalveolar glands of the prostate are formed by what type of epithelium ?

A

Cuboidal/pseudostratified columnar epithelium

57
Q

What are the main components of penis ?

A
  1. Three cylindrical masses of erectile tissue
  2. Urethra
  3. Skin
58
Q

Two of the cylinders of penis are placed dorsally. What do you call these cylinders ?

A

Corpora cavernosa of the penis

59
Q

The cylinder of erectile tissue of penis that is located ventrally and surrounds the urethra.

A

Corpus cavernosum of the urethra/Corpus spongiosum

60
Q

At the end of corpus cavernosum/spongiosum, it dilates to form ?

A

Glans penis

61
Q

Most of the penile urethra is lined with what type of epithelium ?

A

Pseudostratified columnar epithelium

62
Q

Glans penis is lined by what type of epithelium ?

A

Stratified squamous epithelium

63
Q

Mucus-secreting ____ __ ____ are found throughout the length of the penile urethra.

A

glands of Littre

64
Q

Retractile fold of the skin that contains connective tissue with smooth muscle in its interior.

A

Prepuce

65
Q

The corpora cavernosa are covered by a resistant layer of dense connective tissue called ?

A

Tunica albuginea

HISTOLOGY LEC (20 decks)

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