Anatomy of pelvic lateral wall and pelvic mass Flashcards

1
Q

Generally, what is seen in the lateral pelvic wall?

A
Vessels
Nerves
Lymphatics
Ureter
Muscle 
Peritoneum 
Vas deferens/ round ligament of uterus
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What ligaments make up the 2 sciatic foramen of the pelvis?

A

Sacrospinous

Sacrotuberous

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is the tendinous arch of the levator ani?

A

Origin point of levator ani

Thickened fascia over obturator internus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What is the function of the obturator internus?

A

Separates the superior and inferior gemellus

Lateral rotator

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Underneath which muscle does the sciatic nerve pass?

A

Piriformis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What do the majority of the arteries of the pelvis and perineum arise from?

A

Internal iliac artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What are the 2 exceptions to the arteries of the lateral pelvic wall (not internal iliac)?

A

Gonadal arteries; L2

Superior rectal; continuation of inferior mesenteric artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are the 2 divisions of the internal iliac artery in the pelvis?

A

Anterior; visceral

Posterior; parietal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the divisions of the posterior internal iliac artery within the lateral pelvis?

A

Sup and inf gluteal arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the divisions of the anterior internal iliac artery within the lateral pelvis?

A

Internal pudendal
Vesical arteries
Obturator artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What are the branches of the internal pudendal artery in men?

A
Middle rectal 
Inferior vesical 
Prostatic branch
Perineal artery 
Posterior scrotal artery 
Deep artery of penis
Dorsal artery of penis
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the route of the internal pudendal artery?

A

Leaves pelvis via greater sciatic foramen

Re-enters via lesser sciatic foramen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the origin of the anterior scrotal artery?

A

External iliac artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What do the dorsal artery of penic and deep artery of penis supply respectively?

A

Dorsal artery = corpus spongiosum

Deep artery = corpus cavernosum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the difference between the arteries of pelvic wall in males and females?

A

Female; no inferior vesical artery

Equivalent is vaginal artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What is the importance of the uterine artery?

A

Ligated in a hysterectomy

17
Q

What are the 2 important anastomoses in the female genital system?

A

Uterine artery and ovarian artery

Uterine artery and vaginal artery

18
Q

Where does the ureter run in terms of the uterine artery?

A

Ureter runs underneath the uterine artery; need to be sure not to ligate in hysterectomy

19
Q

What are the branches of the internal pudendal artery in females?

A
Uterine artery 
Middle rectal 
Vaginal artery 
Inferior rectal artery 
Perineal artery 
Dorsal artery of malignancy
20
Q

What is the origin of the labial arteries?

A

External iliac

21
Q

What is important about the venous system in the pelvis?

A

Forms large plexuses which can be easily torn and will bleed lots

22
Q

Where will venous blood from the pelvis drain?

A

Internal iliac
Into common iliac
IVC

23
Q

What is the drainage of the superior rectal vein?

A

Hepatic portal system via splenic vein

24
Q

Where will the lateral sacral plexus drain into?

A

Internal vertebral venous plexus; important for cancerous and infection spread

25
What plexuses are associated with the sacrum in the plexus?
Lateral sacral | Presacral
26
What are the nerves of the lateral pelvic wall?
``` Sacral plexus Pelvic splanchnic nerves Nerve to levator ani Pudendal Sciatic Obturator nerve ```
27
Via which canal does the obturator nerve and vessel pass through?
Obturator canal
28
What are the lymphatics present in the pelvis?
``` Pararectal Deep and superficial inguinal Internal and external iliac Common iliac Sacral Inferior mesenteric Lumbar ```
29
Where will superior pelvic viscera lymph drain to?
``` External iliac Common iliac Aortic Thoracic duct Venous system ```
30
Where will inferior pelvic viscera lymph drain to?
``` Deep perineum Internal iliac Common iliac Aortic Thoracic duct Venous system ```
31
Where will lymph from the superficial perineum drain to?
Superficial inguinal nodes
32
Where will lymph from ovaries and testes drain to?
Lumbar nodes
33
Where will lymph from the clitoris and glans of penis drain to?
Deep inguinal nodes first
34
What is trans-peritoneal spread?
Disease can penetrate through the peritoneal layer and disseminate into the peritoneal cavity