Lecture 5 - Male Pelvis and Perineum Flashcards Preview

LSS 2 - Abdomen, Alimentary and Urinary systems > Lecture 5 - Male Pelvis and Perineum > Flashcards

Flashcards in Lecture 5 - Male Pelvis and Perineum Deck (55)
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1

What are the differences between female and male pelves?

2

What is the orientation of the pelvic girdle of the male and female?

ASIS and pubic tubercles are in the same plane, with greater and lesser pelves being continuous

3

Where does the pelvic peritoneum extend to?

Continues into pelvic cavity but doesn't reach the pelvic floor, not completely covering pelvic viscera (apart from uterine tubes)

4

What is the structure of the pelvic peritoneum?

Several folds and pouches are formed

5

What is present in the space between the pelvic wall and peritoneum not occupied by viscera?

Pelvic fascia which when condensed form ligaments supporting viscera like the cervix, vagina and prostate

6

What are the contents of the male pelvic cavity?

Ureter, bladder, urethra, prostate, ductus deferens, seminal vesicles, bulbourethral glands, rectum, vessels, nerves, lymphatics; in greater pelvis: caecum, appendix, parts of sigmoid colon and ileum

7

What is the organisation of the male pelvic organs?

8

What structures in the male pelvis can be felt on a digital rectal examination (DRE) of a healthy man?

Prostate

9

Which of the two (1 or 2) bends of the male urethra can be straightened before passing a catheter?

2

10

Where is the prostate gland and ductus deferens located?

PG surrounds 1st part of urethra, ductus deferens from testis passes through inguinal canal then over and behind ureter to enter urethra through the prostate

11

Where are the seminal vesicles located?

On back of bladder which open into ductus deferens between ampulla and ejaculatory duct

12

What does the male bladder and prostate look like?

13

Where does the male bladder 'sit'?

On the prostate which is transfixed by the 1st part of urethra

14

From what ducts does the semen form from?

Ductus deferens, seminal vesicles and prostate empty into prostatic urethra to form the semen

15

How does the prostate drain into the urethra?

16

What is the internal urethral sphincter?

Smooth muscle well organised in males -> closes during ejaculation by sympathetic stimulus

17

When navigating a catheter where can complications occur?

Tip of catheter may become lodged in prostatic utricle

18

Where does the male pelvis receive arterial supply from?

19

Where does the testis receive arterial supply from?

From testicular artery arising from abdominal aorta

20

What is the shape of the perineum?

Diamond shape area between pubic symphisis, ischial tuberosities and coccyx, divided into urogenital and anal triangles

21

What is present in the anal triangle?

Ischio-anal fossae (fat-filled spaces separating anal canal and levator ani from pelvis walls)

22

What is present in the urogenital triangle?

Divided into superficial and deep parts by the perineal membrane

23

What is the perineal membrane?

Thick triangular fascial structure attached to pubic arch with free margin posteriorly and a small gap anteriorly

24

What is the deep perineal space?

Above the perineal membrane and below the fascia of pelvic diaphragm

25

What is the superficial perineal space?

Below the perineal membrane and perineal fascia

26

When does the deep and superficial space become real spaces?

When fluid leaks into them -> normally are potential spaces

27

What are the superficial perineal structures of males?

28

What does the perineal membrane fill?

The urogenital triangle and the erectile tissues and associated skeletal muscles are anchored to this

29

What are the contents of the superficial perineal pouch?

Median erectile tissue (corpus spongiosum) - bulb of penis [F= divides round vestibule to form vestibular bulbs], lateral erectile tissue - masses attached to ischiopubic rami. Both meet to form shaft and head of penis or clitoris

30

What is the erectile tissue in perineum surrounded by?

Skeletal muscles