Pelvic Neurovasculature Flashcards

1
Q

The abdominal aorta splits into what two arteries?

A

Common iliac aa.

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2
Q

The common iliac artery splits into what two arteries?

A

External and internal iliac aa.

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3
Q

The external iliac exits the pelvis as what artery?

A

Femoral aa.

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4
Q

The internal iliac artery enters the true pelvis and branches into how many anterior and posterior arteries?

A

3 posterior and 7 anterior

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5
Q

The internal iliac generally supplies what?

A

Pelvic organs and gluteal region

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6
Q

The medial sacral artery comes from what branch of arteries?

A

Comes from the bifurcation of the aorta into the common iliac aa.

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7
Q

Where is the physical location of the iliolumbar artery?

A

Between iliac crest and L5

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8
Q

What does the iliolumbar artery supply?

A

Medial ilium and L5

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9
Q

What foramina do the lateral sacral arteries enter?

A

Ventral sacral foramina

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10
Q

The lateral sacral arteries supply what?

A

Sacrum and ventral sacral nn.

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11
Q

The superior gluteal arteries are located between what vertebral levels?

A

L5 and S1

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12
Q

The superior gluteal m. enters the gluteal region superior to what muscle?

A

Piriformis m.

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13
Q

The superior gluteal artery supplies what?

A

Gluteal mm. with superior gluteal nn.

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14
Q

The superior gluteal artery exits what major foramen?

A

Greater sciatic

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15
Q

What is the first branch of the anterior trunk of the internal iliac artery?

A

Inferior gluteal artery

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16
Q

The inferior gluteal artery is located between what vertebral levels?

A

S2 and S3

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17
Q

Is the inferior gluteal artery located superior or inferior to the primiforis muscle?

A

Inferior

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18
Q

The inferior gluteal artery supplies what?

A

Gluteal mm. with inferior gluteal nn.

19
Q

The internal pudendal artery exits the pelvis through what foramen?

A

Greater sciatic foramen

20
Q

In respect to the primiforis muscle how does the internal pudendal artery enters the gluteal region?

A

Inferiomedial

21
Q

The internal pudendal artery crosses over what major ligament?

A

Sacrospinous ligament

22
Q

The internal pudendal artery reenters the pelvis via what foramen?

A

Lesser sciatic

23
Q

The internal pudendal artery supplies what?

A

Urogenital and anal triangles

24
Q

The pudendal canal contains what?

A

Internal pudendal artery and pudendal nerve

25
Q

The pudendal canal is formed by what?

A

Facia of obturator internus m.

26
Q

The obturator artery supplies what?

A

Medial thigh with obturator n.

27
Q

How many superior vesical arteries are sent to the bladder?

A

3-4

28
Q

What is the corona mortis?

A

This is an anastomoses between the obturator and inferior epigastric arteries

29
Q

The uterine artery supplies what?

A

Uterus, cervix, and superior vaginal canal

30
Q

Where does the ureter run in respect to the uterine artery?

A

Immediately below

31
Q

The vaginal or inferior vesical arteries supply what?

A

In females: Inferior vagina, adjacent bladder, and rectum

In males: posterior inferior bladder, ureter, seminal vesicle, and prostate

32
Q

The middle rectal artery supplies what?

A

Rectum

33
Q

The middle rectal artery anastomoses with what?

A

Superior rectal from IMA and inferior rectal from internal pudendal

34
Q

What is the veinous drainage of the pelvis?

A

Internal iliac vv.

35
Q

The sacral plexus is innervated by what somatic nerves?

A

Sciatic, gluteal, and pudendal nn.

36
Q

The sacral plexus L4 - L5 forms what?

A

Lumbosacral trunk and crosses over sacral ala

37
Q

The sciatic nerve is formed from what spinal nerves?

A

L4-S3

38
Q

The pudendal nerve is formed from what spinal nerves?

A

S2-S4

39
Q

At what vertebral levels are the sympathetic fibers of the pelvis located?

A

T10-L2(3)

40
Q

The superior hypogastric plexus covers what?

A

Bifurcation of aorta and upper sacrum

41
Q

The superior hypogastric plexus condenses to form what?

A

2 hypogastric nn.

42
Q

What serves as the main autonomic plexus of the pelvis?

A

Inferior hypogastric plexus

43
Q

The right lymphatic duct drains what?

A

Drains right head and neck, right upper limb, and right upper thorax

44
Q

The thoracic lymphatic duct drains what?

A

Left head and neck, left upper limb, remainder of thorax, abdomen, pelvis, and lower limbs