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Anatomy II > Male Genitalia > Flashcards

Male Genitalia Flashcards

1
Q

What are the internal male genitalia?

A

Testis, epididymis, ductus deferens, accessory sex glands (prostate, seminal vesicles, bulbourethral glands)

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2
Q

What are the external male genetalia?

A

Penis, scrotum and tunics of the testes

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3
Q

Embryologically, where does the internal genitalia arise form?

A

Above the pelvic floor from the urogenital ridge

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4
Q

Embryologically, where does the external genitalia arise from?

A

Urogenital sinus below the pelvic floor.

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5
Q

What is the retrovesical pouch?

A

A peritoneal reflection from the posterior wall of the urinary bladder onto the anterior wall of the rectum.

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6
Q

In the male, what is the lowest point in the abdominal cavity?

A

Retrovesical pouch

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7
Q

Where is the sperm produced?

A

In the testis

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8
Q

Which testis is usually the biggest?

A

The left

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9
Q

On which side of the testis does the epididymis lie?

A

Posteromedial side

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10
Q

What is the connective tissue investing each testis called?

A

Tunica albuginea

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11
Q

What is the appendix of the testis a remnant of?

A

Müllerian duct

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12
Q

What three parts does the epididymis consist of?

A

Head, body and tail

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13
Q

What is the appendix of the epididymis a remnant of?

A

The mesonephros

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14
Q

Does the testis and epididymis share the connective tissue?

A

No

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15
Q

Where does the testes originally develop?

A

In the abdominal cavity

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16
Q

What is the porcessus vaginalis testis?

A

A peritoneal diverticulum that guides the testis down into the scrotum

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17
Q

Processus vaginalis testis will remain as what layer?

A

Tunica vaginalis of the testis

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18
Q

What does the tunica vaginalis enclose?

A

It is a closed serous sheath that envelops the testis and epididymis. The visceral layer (epiorchium) lies on top of the tunica albuginea and cover those parts of the testes not covered by epididymis. It also covers most of the epididymis and reflects into the parietal layer (periorchium) at the exit site of the spermatic cord

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19
Q

Between the epididymis and testis there is a sinus. What is it called

A

The sinus of the epididymis, bounded by the superior and inferior ligaments of the epididymis.

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20
Q

The internal spermatic fascia is a continuation of what?

A

Transversals fascia

21
Q

What is the cremasteric fascia?

A

The internal spermatic fascia with muscle fibers from the cremaster muscle

22
Q

What is the cremasteric muscle a continuation of?

A

Internal abdominal oblique muscle

23
Q

The external spermatic fascia is an continuation of what?

A

Outer layer of the fascia of the abdominal wall, the fascia of the external oblique muscle of the abdomen

24
Q

What is the subcutaneous tissue of the scrotum devoid of?

A

Fat

25
Q

What is the dartos fascia?

A

Subcutaneous fascia

26
Q

From outer to inner, what are the layers of the coverings of the testis and epididymis?

A

Skin, dartos fascia, external spermatic fascia, cremasteric muscle (+ fascia), internal spermatic fascia, tunica vaginalis of the testes (epiorchium and periorchium), tunica albuginea

27
Q

From inner to outer, what are the layers that constitute the covering of the testis and the epididymis?

A

Tunica albuginea, tunica vaginalis of the testis (epiorchium and periorchium), internal spermatic fascia, cremasteric muscle + fascia, external spermatic fascia, dartos fascia and skin

28
Q

The testes and epididymis are supplied by which artery?

A

Testicular artery, which arises form the aorta

29
Q

The testicular artery anastomoses with which artery?

A

Artery to ductus deferens and cremasteric artery

30
Q

The artery to the ductus deferens is a branch of which artery?

A

Umbilical artery

31
Q

The cremasteric artery comes from which artery?

A

Inferior epigastric artery

32
Q

Which artery supplies the tunics of the testes?

A

Cremasteric artery

33
Q

The scrotum is supplied by which artery?

A

Internal pudendal artery

34
Q

Which vein drains the testes and epididymis?

A

Pampiniform venous plexus, which empties into the testicular veins

35
Q

Which nerve innervates the cremasteric muscle?

A

Genital branch of genitofemoral nerve

36
Q

The testes and epididymis is supplied by which nerve?

A

Celiac plexus accompanying the arteries.

37
Q

Where does the ductus deferens open into?

A

Ejaculatory duct in the prostatic urethra

38
Q

The ductus deferens is supplied by which artery?

A

Artery to ductus deferens from the umbilical artery

39
Q

Venous drainage of the ductus deferens?

A

Pampiniform plexus and prostatic venous plexus

40
Q

Which nerve innervates the ductus deferens?

A

Inferior hypogastric nerve plexus

41
Q

What are the parts of the ductus deferens?

A
  • scrotal part
  • funicular part
  • inguinal part
  • pelvic part
42
Q

What are the contents of the spermatic cord?

A
  • Ductus deferens
  • Testicular artery and vein
  • Artery to ductus deferens
  • Pampiniform plexus
  • Autonimic nerves
  • Genital branch of genitofemoral nerve
43
Q

What are the layers of the spermatic cord?

A

Skin, dartos muscle, external spermatic fascia, cremaster muscle and internal spermatic fascia

44
Q

Which side of the prostate faces the rectum?

A

Its posterior side

45
Q

The inferolateral surface of the prostate faces which nerve plexus?

A

Inferior hypogastric nerve plexus

46
Q

What structures pierces the prostate?

A

Ejaculatory duct and urethra

47
Q

Which arteries supplies the seminal vesicle?

A

Inferior vesicular artery, artery to ductus deferens and middle rectal artery

48
Q

Which arteries supplies the prostate?

A

Internal pudendal artery, inferior vesicular artery and middle rectal artery

49
Q

The prostatic venous plexus drains what structures?

A

Prostate and seminal vesicles. It empties into internal iliac vein

Anatomy II (15 decks)

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