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Anatomy III oral > C27 > Flashcards

C27 Flashcards

Penis, muscles of the male genital organs, prepuce, blood supply and innervention

1
Q

What is the penis composed of?

A

erectile tissue

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2
Q

What are the types of penis?

A

fibroelastic

  • Ru + sus
  • sigmoid flexure
  • needs additional blood to become erect

Musculocavernous

  • Ca + Eq
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3
Q

Structure of the penis

A

Double crus penis

radix penis

corpus penis

glans penis

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4
Q

Radix penis

A

Crus penis

  • formed by 2 columns of cavernous tissue (corpus cavernosum)

bulbus penis

  • unparied, formed by spongy tissue
  • corpus spongiosum
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5
Q

Corpus penis

A

corpus cavernosum (enclosed in tunica albuginea)

corpus spongiosum

urether

prepuce

muscles

vessels

lymph

nerves

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6
Q

Glans penis

A

Os penis in Ca

corpus spongiosum

tip of penis, visibel when prepuce is drawn back

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7
Q

Glans penis in Eq

A
  • Corona glandis
  • fossa glandis - marks the end of the corona
  • collum glandis - behind the corona
  • sinus urethralis - dorsal diverticulum of fossa glandis
  • processus dorsalis glandis
  • processus urethralis

predominantly vascular

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8
Q

glands penis in Ca

A

Pars longa glandis

bulbus glandis

predominatly vascualr

os penis

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9
Q

glans penis in Ru

A

fibrous

processus urethralis

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10
Q

dorsum penis

A

back of the penis when erect

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11
Q

who has sulcus dorsalis on corpus penis?

A

Equine

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12
Q

Facies urethralis

A

ventral, has a groove

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13
Q

Muscles of the male genital organs

A
  1. retractor penis
    • pars rectalis
    • pars perinea
  2. m. ischocavernosus
  3. m. bulbospongiosum
  4. m. urethralis
  5. m. cranialis preputialis
  6. m. caudalis preputialis
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14
Q

Blood supply of the penis

A

A. iliaca interna

  • A pudenda interna
    • A. penis
      • A. bulbi penis
      • A. profunda penis
      • A. dorsalis penis
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15
Q

Prepuce

A

cutaneous sheeth around the free part of the penis

  • lamina externa - continous with the skin of the abdomnial wall
  • lamina interna - in contact with the penis

they meet at the preputial orifice

Raphe preputi

  • Median ventral seam of the prepuce

Cavum preputiale

  • Between the lamina interna and the pars libera penis
  • Eq: divided by the plica preputialis into two concentric recesses
    a cylindrical fold of the lamina internal, reflected at the anualua preputialis

Anulus preputialis (eq)

  • A thickened band of skin at the reflected portion of the preputial fold
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16
Q

blood supply of the prepuce

A

A. pudenda externa

  • r. preputialis
17
Q

innervation of the penis

A

lumbar plexus

N. pudendalis

  • n. retractor caudalis
  • n. dorsalis penis
  • n. perinealis superficialis
18
Q

Lig. suspensoria

A

attaches the shaft of the penis to the ventral surface of the pelvis

19
Q

Innervation of the prepuce

A

N. genitofemorale

  • r.genitalis

Anatomy III oral (51 decks)

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