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Repro anatomy > Penis: structure > Flashcards

Penis: structure Flashcards

1
Q

what is the penis?

A

an external organ of the male reproductive system

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2
Q

what are the main functions of the penis?

A

Sexual intercourse

Micturation

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3
Q

what happens to the penis during erotic stimulation?

A

the penis undergoes erection, becoming engorged with blood

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4
Q

what is emission?

A

mixing of the components of semen

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5
Q

where does emission occur?

A

in the prostatic urethra

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6
Q

what happens post emission?

A

ejaculation can occur

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7
Q

what happens during ejaculation?

A

semen moves out of the urethra through the external urethral orifice

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8
Q

what happens to the penis post ejaculation?

A

the penis undergoes remission, returning to a flaccid state

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9
Q

function of the penis in micturation?

A

It contains the urethra

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10
Q

function of the urethra?

A

carries urine from the bladder to the external urethral orifice - where it is expelled from the body

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11
Q

what is the anatomical position of the penis?

A

erect

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12
Q

what is the dorsal side of the penis?

A

closest to the abdomen

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13
Q

what is the ventral side of the penis?

A

closest to the testes

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14
Q

how can the penis be divided anatomically?

A

into 3 parts:

root, body, glans

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15
Q

what is the root of the penis?

A

The most proximal, fixed part of the penis

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16
Q

where is the root of the penis located?

A

in the superficial perineal pouch of the pelvic floor - not visible externally

17
Q

what is the superficial perineal pouch?

A

A potential space between the perineal membrane superiorly, and the perineal fascia inferiorly

18
Q

what does the root of the penis contain?

A

contains three erectile tissues and two muscles

19
Q

what are the 3 erectile tissues contained within the root of the penis?

A

two crura and bulb of the penis

20
Q

what are the 2 muscles contained within the root of the penis?

A

ischiocavernosus and bulbospongiosus

21
Q

what is the body of the penis?

A

The free part of the penis

22
Q

where is the body of the penis located?

A

between the root and glans

23
Q

where is the body of the penis suspended from?

A

the pubic symphysis

24
Q

what is the body of the penis composed of?

A

three cylinders of erectile tissue – two corpus cavernosa, and the corpus spongiosum

25
Q

what is the glans of the penis?

A

The most distal part of the of penis

26
Q

shape of the glans of the penis?

A

conical

27
Q

what is the glans of the penis formed by?

A

the distal expansion of the corpus spongiosum

28
Q

what does the glans of the penis contain?

A

contains the opening of the urethra, termed the external urethral orifice

Repro anatomy (39 decks)

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