Penis: structure Flashcards Preview

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Flashcards in Penis: structure Deck (28)
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1

what is the penis?

an external organ of the male reproductive system

2

what are the main functions of the penis?

Sexual intercourse
Micturation

3

what happens to the penis during erotic stimulation?

the penis undergoes erection, becoming engorged with blood

4

what is emission?

mixing of the components of semen

5

where does emission occur?

in the prostatic urethra

6

what happens post emission?

ejaculation can occur

7

what happens during ejaculation?

semen moves out of the urethra through the external urethral orifice

8

what happens to the penis post ejaculation?

the penis undergoes remission, returning to a flaccid state

9

function of the penis in micturation?

It contains the urethra

10

function of the urethra?

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

11

what is the anatomical position of the penis?

erect

12

what is the dorsal side of the penis?

closest to the abdomen

13

what is the ventral side of the penis?

closest to the testes

14

how can the penis be divided anatomically?

into 3 parts:
root, body, glans

15

what is the root of the penis?

The most proximal, fixed part of the penis

16

where is the root of the penis located?

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

17

what is the superficial perineal pouch?

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

18

what does the root of the penis contain?

contains three erectile tissues and two muscles

19

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

two crura and bulb of the penis

20

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

ischiocavernosus and bulbospongiosus

21

what is the body of the penis?

The free part of the penis

22

where is the body of the penis located?

between the root and glans

23

where is the body of the penis suspended from?

the pubic symphysis

24

what is the body of the penis composed of?

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

25

what is the glans of the penis?

The most distal part of the of penis

26

shape of the glans of the penis?

conical

27

what is the glans of the penis formed by?

the distal expansion of the corpus spongiosum

28

what does the glans of the penis contain?

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