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Embryology > Repro-Endo: Male Repro > Flashcards

Repro-Endo: Male Repro Flashcards

1
Q

(3) Gonadal Ridge Cell Types

A
  1. Mesenchymal cells
  2. Mesothelial cells
  3. Primordial cells
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2
Q

Timing of Testosterone?

Internal Structure Differentiation?

External Structure Differentiation?

A

8th Week

Internal Stimulates Development of the:

vas Deferens
Seminal Vesicles
Epididymis

External Stimulates the Development of the:

None

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3
Q

Timing of Mullerian-inhibiting Factor?

Internal Structure Differentiation?

External Structure Differentiation?

A

8th Week

Internal Stimulates the Development of the:

Inhibits development of Uterus, Fallopian Tubes, Cervix,
and Upper Vagina

External Stimulates the Development of the:

None

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4
Q

Timing of Dihydrotestosterone?

Internal Structure Differentiation?

External Structure Differentiation?

A

9th - 12th Weeks

Internal Stimulates the Differentiation of the:

Prostate

External Stimulates the Differentiation of the:

Penis and Scrotom

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5
Q

SRY timing?

A

7th Week

The sex-determining region (SRY) gene on the
Y Chromosome encodes the
Testis-determining Factor (TDF).

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6
Q

The Mesenchymal cells become the _____ and
then differentiate into the _____.

A

The Mesenchymal cells become
the Gonadal Ridge Medulla and then
differentiate into the Leydig cells in Males and Ovarian Support Stroma in Females..

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7
Q

The Mesothelial cells differentiate into the _____ and
then into the ______.

A

The Mesothelial cells differentiate into the Gonadal Ridge and Primary Sex Cord Cortex and
​then into the Seminiferous Tubules in Males and
Ovarian Follicles in Females..

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8
Q

The Primordial germ cells differentiate
into the _____ and then into the _____.

A

The Primordial germ cells differentiate
​into the Primary Sex Cords as Future Gametes and
then into the Spermatogonia in Males and
Oogonia in Females .

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9
Q

The Ovaries differentiate into the ____ and the _____.

A

The Ovaries differentiate into the Theca and the Granulosa.

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10
Q

The Testis differentiate into the ____ and the _____.

A

The Testis differentiate into the Sertoli cells
and the Leydig cells.

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11
Q

Estrogen from the ____ and ____ help the
Paramesonephric Duct to differentiate into (4) _____.

A

Estrogen from the Theca and Granulosa help the
​Paramesonephric Duct to differentiate into:

  1. Uterus
  2. Fallopian tubes
  3. Cervix
  4. Upper 1/3 Vagina
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12
Q

Testosterone from the ____ help the
​Mesonephric duct to differentiate into (3) _____.

A

Testosterone from the Leydig cells help the
​Mesonephric duct (Wolffian duct) to differentiate into:

  1. vas Deferens
  2. Epididymis
  3. Seminal vesicle
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13
Q

The 4th week, the (5) Mesenchymal swelings covered w/ Ectoderm form around the Cloacal membrane.

A

The 4th week, the (5) Mesenchymal swelings covered w/ Ectoderm form around the Cloacal membrane.

  1. Genital tubercle
  2. Urogenital folds (2x)
  3. Labioscrotal folds (2x)
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14
Q

What does the Gubernaculum do?

A
  • The Gubernaculum is a ligament
  • Forms between the Indifferent gonads and the Labioscrotal swellings
  • Guides the Testes into the Scrotum and forms the Round Ligament of the Uterus and Several ligaments of the Ovary.
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15
Q

The Middle of the Primary sex cords differentiate during the? (7th week, SRY)

A

The Middle of the Primary sex cords differentiate during the? (7th week, SRY)

Coiled, Solid Testis cords

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16
Q

The Ends of the Primary sex cords differentiate during the? (7th week, SRY)

A

The Ends of the Primary sex cords differentiate during the? (7th week, SRY)

Stay straight, Join near Hilum - Rete testes

17
Q

The Rete testes and the Mesonepric tubule remnants differentiate into?

(7th week, SRY)

A

The Rete testes and the Mesonepric tubule remnants differentiate into?

(7th week, SRY)

Efferent ductules

18
Q

The Mesenchym thickening differentiats into?

(7th week, SRY)

A

The Mesenchym thickening differentiats into?

(7th week, SRY)

Tunica Albuginea

19
Q

The Mesothelial cells of the Testes differentiate into the?

(7th week, SRY)

A

The Mesothelial cells of the Testes differentiate into the?

(7th week, SRY)

Sertoli cells

20
Q

The Mesothelial cells of the Testes between the Testis cords, differentiate into the?

(7th week, SRY)

A

The Mesothelial cells of the Testes between the Testis cords, differentiate into the?

(7th week, SRY)

Leydig cells

21
Q

Fate of the Genital Tubercle (Phallus)?

A

Fate of the Genital Tubercle (Phallus)?

Genital Tubercle (Phallus) –> Glans (Foreskin or Prepuce)

22
Q

Fate of the Urogenital Sinus and Urogenital folds?

A

Fate of the Urogenital Sinus and Urogenital folds?

Urogenital sinus, is made up of the Urogenital folds

Urogenital folds –> Ventral Shaft

The fusion process leaves a line called the
Scrotal/penile raphe

23
Q

Fate of the Labioscrotal swelling?

A

Fate of the Labioscrotal swelling?

Labioscrotal swelling –> Scrotom

24
Q

(8) Derivatives of the Mesonephric duct?

A

(8) Derivatives of the Mesonephric duct?

  1. Ureter
  2. Renal pelvis
  3. Calyces
  4. Collecting tubules
  5. Ductus (vas) defeerens
  6. Duct of Epididymis
  7. Ejaculatory duct
  8. Seminal vesicle
25
Q

Derivatives of the Paramesonephric duct in Males?

A

Derivatives of the Paramesonephric duct in Males?

NONE

26
Q

(4) Derivatives of the Urogenital Sinus?

A

(4) Derivatives of the Urogenital Sinus?

  1. Urinary bladder
  2. Urethra
  3. Prostate gland
  4. Bulbourethral glands
27
Q

Derivatives of the Gubernaculum?

A

Derivatives of the Gubernaculum?

“Scrotal Ligament”

28
Q

Genital tubercle –>

A

Genital tubercle –> Glans penis

29
Q

Urogenital sinus –>

A

Urogenital sinus –> Corpus spongiosum
and Bulbourethral glands (of Cowper)
and Ventral shaft of Penis (penile urethra)

30
Q

Labioscrotal swelling –>

A

Labioscrotal swelling –> Scrotum

31
Q

External oblique muscle aponeurosis –> (Spermatic cord)?

A

External oblique muscle aponeurosis
–> External spermatic fascia

32
Q

Internal oblique muscle –> (Spermatic cord)?

A

Internal oblique muscle –> Cremaster muscle

33
Q

Transversalis fascia –> (Spermatic cord)?

A

Transversalis fascia –> Internal spermatic fascia

34
Q

Extraperitoneal fatty tissue –> (Spermatic cord)?

A

Extraperitoneal fatty tissue –> Areolar tissue

35
Q

Peritoneum –> (Spermatic cord)?

A

Peritoneum –> Processus vaginalis

36
Q

Stages of Spermatogenesis?

A

Stages of Spermatogenesis?

  1. Spermatogonium (Diploid, 2N) (1x)
    - -> Mitosis –>
  2. Primary Spermatocyte (Diploid, 4N) (1x)
    - -> Meiosis I –>
  3. Secondary Spermatocyte (Haploid, 2N) (2x)
    - -> Meiosis II –>
  4. Spermatid (Haploid, 2N) (4x)
    - -> Phagocytosis –>
  5. Spermatozoan (4x)
37
Q

The pathway sperm take to exit the body?

A

The pathway sperm take to exit the body?

SEVEnup

  • *S**eminiferous tubules (site of Spermatogenesis)
  • *E**pididymis
  • *V**as Deferens
  • *E**jaculatory Ducts
  • *U**rethra
  • *P**enis

Embryology (5 decks)

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