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Pelvis > Male and Female External Genetalia > Flashcards

Male and Female External Genetalia Flashcards

1
Q

What is the Scrotum derived from?

A

Skin of Abdominal Wall

Superficial fascia of Abdominal wall

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2
Q

What are the contents of the scrotum

A

Testes
Epididymis
Distal portion of spermatic cord

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3
Q

Describe the skin of the Scrotum

A
  • Thin
  • Pigmented
  • Has a midline scrotal raphe
  • Lined on the inside by the Dartos Muscle which causes rugose
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4
Q

What are the connective tissue layers of the scrotum

A

From superficial to deep:

  • Skin
  • Dartos Muscle
  • Tunics of spermatic cord:
  • –Ext. Spermatic Fascia
  • –Cremasteric Muscle and Fascia
  • –Int. Spermatic Fascia

ALL THESE LAYERS FUSE AND LIE SUPERFICIAL TO TUNICA VAGINALIS

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5
Q

What is the structure of the Tunica Vaginalis

A

Has two layers:

  • Visceral layer: covers the testis
  • Parietal layer: covers the testis and epididymis
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6
Q

What is the blood supply of the Scrotum

A

Supplied and drained by:

–External pudendal arteries and veins

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7
Q

What is the lymphatic drainage of the scrotum

A

Superficial inguinal nodes

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8
Q

What is the innervation of the scrotum

A

Anterior:

  • Ilioinguinal N.
  • Genital br. of Genitofemoral N.

Posteroir:

  • Posterior Scrotal N.
  • Perineal Branches (of the posterior femoral cutaneous N)
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9
Q

What are the three parts of the penis

A

Root, body, glans

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10
Q

What makes up the root of the penis

A

Bulb and crura

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11
Q

What are the two muscles associated with erectile bodies

A

Bulbospongiosus muscle

Ischiocavernosus muscle

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12
Q

What are the erectile bodies of the penis? Also, what is the fascia that covers them?

A

Erectile bodies:

  • Paired Corpora Cavernosa
  • Corpus Spongiosum

Surrounded by deep fascia (Buck’s fascia)

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13
Q

What is the blood supply of the penis

A

Internal Pudendal Arteries:

  • Dorsal arteries of penis
  • Deep arteries
  • Artery of bulb of penis

Skin of penis supplied by the external pudendal arteries

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14
Q

What is the lymphatic drainage of the penis?

A

Superficial inguinal nodes

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15
Q

What is the innervation of the penis?

A

Sensory and Sympathetic:
-Dorsal nerve of the penis (from Pudendal Nerve)

Skin:
-Ilioinguinal Nerve

Parasympathitic nerves:

  • Pelvic Splanchnic Nerves
  • Enables erection
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16
Q

What are the connective tissue layers that cover the testis

A

From Deep to superficial:

  • Tunica Albuginea (tough fibrous layer)
  • Visceral layer of Tunica Vaginalis
  • Parietal layer of Tunica Vaginalis
17
Q

What is the blood supply to the testis

A

Testicular A. (in Spermatic Cord)

18
Q

What is the venous drainage from the Testis

A

Pampiniform plexus

19
Q

What are the abdominal wall derivatives of all of the coverings of the testis

A

Scrotal skin - Abdominal skin

Tunica dartos - Dartos Fascia and Muscle

External Spermatic Fascia - External Oblique

Cremaster muscle and Fascia - Internal oblique

Internal spermatic fascia - transversalis fascia

Tunica vaginalis (both) - Peritoneum

20
Q

What forms the epididymis?

A

Convolutions of narrow duct of the Ductus Deferens

21
Q

Where is the epididymis located?

A

Posterior aspect of testes

22
Q

What are the parts of the epididymis

A

Head,
-Formed from ends of efferent ductules from testis

Body,

Tail
-Continuous with Ductus Deferens

23
Q

What is the arterial supply of the epididymis

A

Testicular A

Artery of the vas

24
Q

What is the venous drainage of the epididymis

A

Pampiniform plexus —> Testicular vein

25
Q

How long is the ductus derens

A

25cm long

26
Q

What is the course of the ductus deferens

A

Traverses Inguinal Canal

Crosses ureter medially to enter ejaculatory duct

27
Q

What is the blood supply of the ductus deferens

A

Deferential A. (from Inferior Vesicle A.)

AKA artery of the vas

28
Q

What is included in the female vulva

A 
Mons Pubis
Labia Majora
Labia Minora
Clitoris
Vestibule of Vagina
Bulbs of Vestibule
Greater vestibular glands
29
Q

What are the contents of the vulva

A

External Urethral meatus

Vaginal Introitus (most infeiror)

Opening of ducts of paraurethral gland

Opening of ducts of greater vestibular gland

Bulbs of vestibule

30
Q

What are the parts of the clitoris

A

Root and Body

31
Q

Where is the clitoris located

A

Where two sides of labia minora meet anteriorly

2cm anterior to external urethral meatus

32
Q

What are the components of the body of the clitoris

A

Two crura
Two corpora cavernosa
Gland clitoris

33
Q

Describe the prepuce of clitoris

A

Anterior extension of Labia Minora

34
Q

What is the blood supply to the vulva

A

External Pudendal Arteries

Internal Pudendal Arteries
-Labal and Clitoral branches

35
Q

What is the venous drainage of the vulva

A

Internal pudendal vein

36
Q

What is the lymphatic drainage of the vulva

A

Superficial Inguinal Nodes

37
Q

What is the innervation of the Vulva

A

Anterior Labial Nerves (Ilioinguinal N.)

Perineal br. (from Posterior Femoral Cutaneous N.)

Posterior Labial Nerves (from Pudendal N.)

38
Q

What are the clinical implicaitons of a episiotomy

A

7 o’clock direction cut allows missing:

  • Perineal Body (near 6 o’clock)
  • Spongy Tissue (near 9 o’clock)
39
Q

What is swelling of the scrotum often caused by

A

Hydroceles due to Testicular Tortion

Pelvis (9 decks)

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