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Anatomy (S2)(Unit 2) > Gross (02.27) Pelvic Neurovasculature > Flashcards

Gross (02.27) Pelvic Neurovasculature Flashcards

1
Q

what does the aorta split into?

A

common iliac aa

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2
Q

what do the common iliac aa split into?

A
  • external iliac a

- internal iliac a

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3
Q

what does the external iliac a do?

A

exits pelvis as femoral aa

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4
Q

what does the internal iliac a do?

A

enters true pelvis and branches

-supplies pelvic organs and gluteal region

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5
Q

how many branches are there of the internal iliac a?

A

7

  • 3 posterior
  • 7 anterior
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6
Q

the iliolumbar a (branch of internal iliac) is between the ___ ___ and ____. it supplies the ____ ____ and ____

A
  • iliac crest
  • L5
  • MEDIAL ilium
  • L5
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7
Q

the lateral sacral a (branch of internal iliac) enters the ___ ____ foramina and supplies the ____ and ___ ____ nn

A
  • ventral sacral
  • sacrum
  • ventral sacral nn
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8
Q

the superior gluteal a (branch of internal iliac) is between ____ and _____. it enters the ___ ____ superior to ____m.

A
  • L5
  • S1
  • gluteal region
  • piriformis m
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9
Q

the superior gluteal a supplies the ____ mm with the ___ ___ nn then exits the ____ foramen

A
  • gluteal mm
  • superior gluteal nn
  • sciatic
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10
Q

the inferior gluteal a (branch of internal iliac) is between ___ and ____ inferior to ____ m

A
  • S2
  • S3
  • piriformis m
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11
Q

the inferior gluteal m supplies the _____ mm with the ____ _____ nn

A
  • gluteal mm (like superior gluteal)

- inferior gluteal nn

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12
Q

both the superior and inferior gluteal aa exit the pelvis via ____ ____ ____

A

greater sciatic foramen

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13
Q

the internal pudenadal a runs with the _____ n and exits the pelvis through ____ ____ foramen before entering the gluteal region ______ to piriformis m

A
  • pudendal n
  • greater sciatic
  • inferomedial
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14
Q

the internal pudendal a crosses over the _____ _____ and re-enters pelvis through the ____ ____ foramen to supply the ____ and _____ ____

A
  • sacrospinous ligament
  • lesser sciatic
  • UG
  • anal triangles
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15
Q

the pudendal canal contains which artery and which nerve?

A
  • INTERNAL pudendal a

- pudendal n

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16
Q

the pudendal canal is formed by the fascia of ____ ____ m and runs anteriorly along the _____ ____ to supply ____

A
  • obturator internus m
  • ischiopubic ramus
  • UG
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17
Q

the umbilical a runs towards the _____ abdominal wall and sends off 3-4 _____ ____ aa to the _____ before it terminates as the _____ ____ ligament

A
  • anterior
  • SUPERIOR vesical aa
  • bladder
  • medial umbilical
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18
Q

the obturator a runs through the _____ _____ and supplies the _____ ____ with the ____ n

A
  • obturator canal
  • medial thigh
  • obturator n
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19
Q

crown of death

A 
corona mortis 
(associated with internal iliac a)
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20
Q

the obturator a anastomoses with the _____ ____ vessels. damage to this opens ____ and ____ ____ systems and can cause ____ in minutes

A
  • INFERIOR epigastric
  • internal and external iliac systems
  • death (crown of death)
21
Q

the uterine a (in females) anastomoses with the _____ a from the aorta to supply the ____, ____, ___ ___ ____

A
  • ovarian a
  • uterus
  • cervix
  • SUPERIOR vaginal canal
22
Q

the vaginal a [IN FEMALES] supplies _____ ___, ____ , and _____

(the ureter runs ____ this artery)

A
  • inferior vagina
  • bladder
  • rectum

-above

23
Q

the vaginal a [IN MALES] supplies _____ ____ ____, ____ , ____ ____, and _____

(the ureter runs ____ this artery)

A
  • posterior inferior bladder
  • ureter
  • seminal vesicle
  • prostate

-above

24
Q

the middle rectal a supplies the ___ and anastomoses with the ____ ___ a from IMA and ____ ____ a from internal pudendal a

A
  • rectum
  • superior rectal
  • inferior rectal
25
Q

the ureters are inferior to the _____ a and superior to the ____ a [in FEMALES]

A
  • uterine

- vaginal

26
Q

during hysterectomy, the ____ a is tied off and cut

A

uterine a

27
Q

the _____ ____ vv are the venous drainage of the pelvis and form the ____ ___ plexus

A
  • internal iliac veins

- pelvic venous plexus

28
Q

the pelvic venous plexuses are venous networks that surround what three things?

A
  • bladder
  • prostate/uterus
  • rectum
29
Q

the SOMATIC innervation of the sacral plexus is from what three nerves?

A
  • sciatic
  • gluteal
  • pudendal
30
Q

____ and ____ form the lumbosacral trunk and cross over the ____ ____

A
  • L4
  • L5
  • sacral ala
31
Q

____ emerges ABOVE the periformis m

A

S1

32
Q

____ and ____ emerge THROUGH the piriformis m

A
  • S2

- S3

33
Q

_____- ____ contribute to pudendal n

A

S2-S4

34
Q

____ -____ form sciatic and gluteal nn

A

L4-S3

35
Q

sympathetic fibers of the PREVERTEBRAL plexus span from ____ -____

A

T10-L2(3)

36
Q

the sacral splanchnic nn are _______ fibers that span from ___ - ____

A
  • sympathetic

- S2-S4

37
Q

the pelvic splanchnic nn are ____ fibers that span from ____ ____

A
  • para-sympathetic

- S2-S4

38
Q

the superior hypos gastric plexus contains mostly _____ fibers and covers ____ and ____ _____. the plexus condenses to form two ____ nnn

A
  • sympathetic
  • aorta
  • upper sacrum
  • hypogastric nn
39
Q

the hypogastric n contains mostly ____ fibers and diverges and curves outward bilaterally to ___ to expand to form ___ ____ ___

A
  • sympathetic
  • rectum
  • inferior hypogastric plexus
40
Q

the inferior hypogastric plexus contains _____ fibers and covers the ____ ____ bilaterally. is serves as the main ____ ___ of the pelvis

A
  • both (psymp and symp)
  • pelvic viscera
  • autonomic plexus
41
Q

the sympathetic chains are ____ to sacral foramen and converge and terminate anterior to coccyx as ____ ____

A
  • medial

- ganglion impar

42
Q

tiny SYMPATHETIC fibers off sump chain

A

sacral splanchnic nn

43
Q

tiny PARASYMPATHETIC fibers off S2-S4

A

pelvic splanchnic nn

44
Q

what two types of nerves enter the inferior hypogastric plexus?

A
  • sacra splanchnic

- pelvic splanchnic

45
Q

sacral and pelvic splanchnic nn are easily injured during ____ surgery or ___ ____ and result in impaired ____ ____ or ____ ____

A
  • rectal
  • radical hysterectomy
  • bladder control
  • sexual function
46
Q

lymphatic drainage moves ____ to ____ as well as _____ through vessels, nodes, and ____

A
  • superficial
  • deep
  • superiorly
47
Q

each organ has its own _____ ____

A

lymphatic drainage

48
Q

the RIGHT lymphatic duct drains what 3 things?

A
  • right head and neck
  • right upper limb
  • right upper thorax
49
Q

the thoracic duct drains what 6 things

A
  • left head and neck
  • left upper limb
  • remainder of thorax
  • abdomen
  • pelvis
  • lower limbs

Anatomy (S2)(Unit 2) (14 decks)

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