Male Repro Tract Flashcards

1
Q

Scrotum is located?

A

Between thighs in inguinal region

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2
Q

Scrotum is?

A

Pouch of skin divided by median septum into 2 compartments

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3
Q

2 layers of scrotum

A
  1. Skin

2. Tunica dartos

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4
Q

Skin of scrotum

A
  1. Thin
  2. Pigmented
  3. Covered with few hairs
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5
Q

Tunica dartos

A

Smooth muscle layer of scrotum

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6
Q

Tunica dartos function

A

Contraction causes scrotal skin to retract and draw testes toward body

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7
Q

Scrotal ligament connects

A

Tunica dartos to ligament of tail of epididymis

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8
Q

Scrotum location in cat

A
  1. Just ventral to anus

2. Lies dorsally on short, caudally directed penis

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9
Q

Each scrotal compartment contains?

A
  1. Testis
  2. Epididymis
  3. Distal part of spermatic cord
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10
Q

Scrotal raph

A

External mark of scrotal septum

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11
Q

Which testis is usually farther caudal?

A

Left

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12
Q

Testes are located in the scrotum obliquely with long axis running?

A

Dorsocaudally

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13
Q

Testes are enclosed in?

A
  1. Tunica vaginalis

2. Spermatic and cremasteric fascia

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14
Q

What connect testes to tunica dartos?

A

Spermatic and cremasteric fascia

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15
Q

Epididymis is attached to what surface of the testis?

A

Dorsolateral surface

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16
Q

The head of the epididymis is at which extremity of the testis?

A

Cranial

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17
Q

The tail of the epididymis is at which extremity of the testis?

A

Caudal

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18
Q

External spermatic fascia derives from?

A

External abdominal oblique

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19
Q

Internal spermatic fascia derives from?

A

Transversalis fascia system

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20
Q

Layers of testes

A
  1. Scrotal skin
  2. Tunica dartos
  3. Scrotal septum
  4. External spermatic fascia
  5. Vaginal tunic (parietal and visceral layers)
  6. Tunica albuginea
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21
Q

Proper ligament of the testis connects?

A

Testis to tail of epididymis

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22
Q

3 attachments of the testes

A
  1. Proper lig. of the testis
  2. Lig. of the tail of the epididymis
  3. Scrotal lig.

(continuous)

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23
Q

Lig. of the tail of the epididymis attaches?

A

Tail of epidiymis → vaginal tunic and spermatic fascia

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24
Q

Scrotal ligament attaches?

A

Tunica dartos → lig. of tail of epididymis

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25
Q

2 remnants of embyronic gubernaculum testis

A
  1. Proper lig. of testis

2. Lig. of tail of epididymis

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26
Q

Function of epididymis

A

Stores sperm before ejaculation

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27
Q

3 parts of epididymis

A
  1. Head (caput)
  2. Body (corpus)
  3. Tail (cauda epididymis)
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28
Q

Head of epididymis location

A

Begins on cr. medial surface of testis → immediately twists toward lateral side

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29
Q

Body of epididymis location

A

Runs along dorsolateral surface of testis

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30
Q

Epididymis continues craniodorsally as?

A

Ductus deferens

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31
Q

Medial edge of epidydmis is attached to testis by?

A

Mesorchium (visceral vaginal tunic)

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32
Q

Testicular bursa formed by?

A

Mesorchium (limited cranially and caudally by epididymis)

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33
Q

Ductus deferens enters the abdominal cavity at the?

A

Vaginal ring

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34
Q

Right and left ducts of ductus deferens enter?

A

Genital fold

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35
Q

Main blood supply to testis and epididymis

A
  1. Testicular a.

2. A. of ductus deferens

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36
Q

Pampiniform plexus

A

Formed by testicular v.

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37
Q

Anatomical spermatic cord contains? (7)

A
  1. Ductus deferens (and its vessels)
  2. Mesoductus deferens
  3. Testicular a.
  4. Testicular vv. (pampiniform plexus)
  5. Lymphatics of testis and epididymis
  6. Testicular nerve plexus
  7. Mesorchium
38
Q

Surgical spermatic cord contains?

A

Anatomical spermatic cord +

  1. Cremaster m.
  2. Parietal vaginal tunic
39
Q

Spermatic cord begins where?

A

Vaginal ring

40
Q

When does spermatic cord pass through inguinal canal?

A

During descent of testis

41
Q

Prostate completely surrounds?

A

Urethra at neck of bladder

42
Q

Which surface of prostate is covered by peritoneum?

A

Dorsal surface

43
Q

Which surface of prostate is retroperitoneal?

A

Ventral surface

44
Q

Prostate borders

A

Dorsal: rectum

Ventral: pubis symphysis and ventral abdominal wall

45
Q

How is prostate divided into right and left lobes?

A

By median septum

46
Q

2 ductus deferents enter what surface of the prostate?

A

Craniodorsal

47
Q

Where do ductus deferens open into the urethra?

A

Colliculus seminalis

48
Q

Colliculus seminalis location

A

2 slits on each side of hillock

49
Q

3 divisions of penis

A
  1. Root
  2. Body
  3. Glans
50
Q

Root of penis contains what parts?

A
  1. Left and right crura

2. Bulb of penis

51
Q

Most important component of the body of the penis

A

2 adjacent corpora cavernosa

52
Q

Glans of penis contains what 2 parts?

A
  1. Bulbus glandis

2. Pars longa glandis

53
Q

Penis in non-erect state

A

Glans entirely withdrawn into prepuce

54
Q

Crus of the penis is?

A

Proximal end of corpus cavernosum penis

55
Q

Crus of penis originates from?

A

Ischiatic tuberosity

56
Q

Crus of penis is surrounded by?

A

Ischiocavernosus m.

57
Q

Bulb of penis location

A

Between crura

58
Q

Bulb of penis is partially bilobed by?

A

Retractor penis m.

59
Q

Bulb of penis is continuous with?

A

Corpus spongiosum surrounding caudal part of urethra

60
Q

Bulb of penis is externally covered by?

A

Bulbospongiosus m.

61
Q

Where does body of penis begin?

A

Where 2 crura join distal to bulb

62
Q

Body of penis contains?

A
  1. Corpus cavernosa
  2. Corpus spongiosus
  3. Urethra
63
Q

Body of penis is enveloped by?

A

Tunica albuginea

64
Q

Urerthra is located in?

A

Corpus spongiosus

65
Q

Os penis is surrounded by?

A

Gland penis

66
Q

Os penis is?

A

Boner bone in dog

67
Q

Bulbus glandis is?

A

Barrel-shaped cavernous expansion of corpus spongiosum

68
Q

Bulbus glandis surrounds?

A

Proximal third of os penis

69
Q

Bulbus glandis in non-erect stage

A

Not distinct

70
Q

Bulbus glandis function

A

Provide “tie” during copulation

71
Q

How is bulbus glandis separated from pars longa glandis?

A

CT septum

72
Q

Connection between pars longa glandis and corpus spongiosum

A

None

73
Q

How is pars longa glandis drained?

A

By short large vein on each side → into cavernous bulbus glandis

74
Q

Os penis is the ossification of?

A

Corpora cavernosa

75
Q

Prepuce is?

A

Fold of skin which covers glans of penis in retracted state

76
Q

4 parts of prepuce

A
  1. External lamina
  2. Internal lamina
  3. Preputial orifice
  4. Preputial fornix
77
Q

External lamina of prepuce

A

Haired skin of outer surface → continuous with skin of abdominal wall

78
Q

Internal lamina of prepuce

A

In contact with penis → terminates at fornix

79
Q

Preputial orifice

A

Where external and internal lamina meet

80
Q

Preputial fornix

A

Internal lamina reflect onto glans penis

81
Q

Ischiocavernosus m. originates from?

A

Ischiatic tuberosity

82
Q

Ischiocavernosus m. encloses?

A

Crura

83
Q

Bulbospongiosus m. surrounds?

A

Bulb of penis

84
Q

Bulbospongiosus m. arises from?

A

External anal sphincter

85
Q

Retract penis m. is what type of muscle?

A

Smooth muscle

86
Q

Retractor penis m. arises from?

A

1st 2 caudal vertebrae

87
Q

Ischiourethralis m. originates from?

A

Ischiatic tuberosity

88
Q

Ischiourethralis m. inserts?

A

Into fibrous ring that encircle dorsal vein of penis

89
Q

A. of bulb of penis runs in?

A

Corpus spongiosum

90
Q

Deep a. of penis runs in?

A

Corpus cavernosum

91
Q

2 branches of dorsal a. of penis

A
  1. Preputial branch

2. Deep branch