Anatomy of Lower Renal Tract Flashcards Preview

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Flashcards in Anatomy of Lower Renal Tract Deck (34):
1

What is the false pelvis?

from iliac crests to pelvic inlets

2

What is the true pelvis?

from pelvic inlet to pelvic floor

3

Where is the bladder?

pelvic cavity

4

What are the pelvic floor muscles?

levator ani

5

What does the urethra pass through to get to the perineum

pelvic floor

6

What is the pelvic floor formed from?

bowl shaped pelvic diaphragm

7

What is the perineum?

perineum is shallow compartment
between pelvic floor and skin

8

Do the ureters pass posterior or anterior to the common iliac vessels to enter the pelvis?

ANTERIOR

9

What happens to the ureters at the level of the ischial spine?

they turn medially to enter the posterior aspect of the bladder

10

Is the route of the pelvic ureter completely “sub”peritoneal?

Yes

11

Why do the ureters enter the posterior bladder wall in an inferomedial direction?

helps prevent reflux of urine back into the ureters when the bladder contracts

12

In females the ureter enters bladder how?

by passing under the uterine artery
“water under the bridge”

13

The uterine artery is a branch of what?

internal iliac

14

What does the internal iliac give branches to?

pelvic organs, gluteal region and perineum

15

What is the trigone in the bladder?

triangle shape on internal aspect
2 ureteric orifices
internal urethral orifice

16

The bladder wall is formed mainly by what?

detrusor muscle

17

What happens to the detrusor muscle when the bladder contracts to prevent reflux of urine?

fibres encircle ureteric orifices & tighten

18

What does the detrusor muscle forms around neck of male bladder?

internal urethral sphincter muscle

19

When does the internal urethral sphincter muscle contract?

contracts during ejaculation to prevent retrograde ejaculation

20

In the female, the body of uterus usually lies superior to the bladder in what position?

anteflexed

21

What separates the body of the uterus from the bladder?

uterovesical pouch

22

What takes the weight of the uterus?

bladder

23

Where does the prostate gland lie in relation to the bladder?

inferior

24

What kind of bladder extends out of the pelvis?

a full one

25

What are the 2 routes of catheterizing a patient's bladder?

urethral (more common)
suprapubic (through anterior abdominal wall, avoiding peritoneal cavity)

26

How long is the female urethra?

approx. 4cm

27

Is the external urethral sphincter voluntary?

Yes

28

How long is the male urethra?

approx. 20cm

29

What sac do the testis sit in?

tunica vaginalis

30

Where can the epididymis be palpated?

at posterior aspect of testis

31

Where can the vas deferens be palpated?

within the spermatic cord

32

What is posterior and transmits the deep arteries of penis?

corpus cavernosum

33

What is anterior and transmits the spongy urethra of penis? What does it expand distally to form?

corpus spongiosum,
expands distally to forms the glans

34

Retraction of the prepuce can constrict the neck of the glans causing the glans to swell - what is this called?

paraphimosis