Prostate gland Flashcards Preview

Repro anatomy > Prostate gland > Flashcards

Flashcards in Prostate gland Deck (40)
Loading flashcards...
1

what is the prostate gland?

the largest accessory gland in the male reproductive system

2

what is the function of the prostate gland?

It secretes proteolytic enzymes into the semen, which act to break down clotting factors in the ejaculate

3

why is breaking down clotting factors in the ejaculate needed?

allows the semen to remain in a fluid state, moving throughout the female reproductive tract for potential fertilisation

4

size of prostate?

roughly walnut

5

composition of the prostate?

Roughly two-thirds of the prostate is glandular in structure and the remaining third is fibromuscular

6

what is the prostate gland surrounded by?

the fibrous capsule of the prostate

7

where is the prostate positioned?

inferiorly to the neck of the bladder and superiorly to the external urethral sphincter

8

where is the levator ani muscle in relation to the prostate?

with the levator ani muscle lying inferolaterally to the gland

9

posterior to the prostate lies what? significance?

the ampulla of the rectum – this anatomical arrangement is utilised during Digital Rectal Examinations (DRE) by physicians needing to examine the gland

10

The proteolytic enzymes leave the prostate via what?

the prostatic ducts

11

what do the prostatic ducts open into?

the prostatic portion of the urethra, secreting the enzymes into the semen immediately before ejaculation

12

how is the prostate gland divided? what are they divided by?

into anatomical lobes

13

what are the anatomical lobes of the prostate gland?

inferoposterior, inferolateral, superomedial, and anteromedial

14

what divides the anatomical lobes of the prostate gland?

urethra and the ejaculatory ducts as they pass through the organ

15

what are the histological division of the prostate into zones?

central, transitional, peripheral zones

16

what does central zone of prostate surround?

the ejaculatory ducts

17

embryological derivative of the central zone of prostate?

from Wolffian duct

18

transitional zone of prostate location? surrounds?

Located centrally and surrounds the urethra

19

embryological derivation of transitional zone of prostate?

urogenital sinus

20

peripheral zone of prostate location?

Makes up the main body of the gland and located posteriorly

21

embryological origin of peripheral zone?

Urogenital Sinus

22

what do you feel in DRE?

The peripheral zone is the zone felt against the rectum on DRE

23

what is situated anterior in the prostate gland?

The fibromuscular stroma

24

what does the fibromuscular stroma merge with?

tissue of the urogenital diaphragm

25

what are the histological zones of the prostate important in?

BPH and prostatic carcinoma

26

The arterial supply to the prostate comes from?

the prostatic arteries

27

where are the prostatic arteries derived from?

internal iliac arteries
(and also internal pudendal and middle rectal arteries)

28

Venous drainage of the prostate is via?

the prostatic venous plexus

29

where does the prostatic venous plexus drain into?

draining into the internal iliac veins

30

what else does the prostatic venous plexus connect to posterior?

by networks of veins, including the Batson venous plexus, to the internal vertebral venous plexus