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Endo/Repro > Pelvic vessels, nerves and lymphatics > Flashcards

Pelvic vessels, nerves and lymphatics Flashcards

1
Q

What are the main branches of abdominal aorta that supply the pelvis?

A

Common iliac artery
Gonadal artery
Median sacral artery
Inferior mesenteric artery

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2
Q

At which level does common iliac artery bifurcate?

A

L5/S1

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3
Q

What is the fate of external iliac a?

A

Becomes femoral a

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4
Q

Median sacral artery supplies what structures?

A

Lower lumbar vertebrae
Sacrum
Coccyx

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5
Q

What is the terminal branch of inferior mesenteric a?

A

Superior rectal a

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6
Q

Superior rectal a supplies what?

A

Rectum as far inferiorly as the internal anal sphincter

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7
Q

What is the fate of internal iliac a?

A

Has anterior and posterior divisions

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8
Q

What are the branches of the posterior division of internal iliac a?

A

Iliolumbar a
Lateral sacral aa
Superior gluteal a

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9
Q

Between what two structures does the iliolumbar a ascend?

A

Obturator n and lumbosacral trunk

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10
Q

Iliolumbar a supplies what structures?

A

Psoas major m
Iliacus m
Quadratus lumborum m
Cauda equina in vertebral canal

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11
Q

Lateral sacral a supplies what structures?

A 
Piriformis m
Spinal meninges 
Roots of sacral nerves 
Erector spinae 
Skin covering dorsal sacrum
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12
Q

Through which structures do lateral sacral arteries pass?

A

Enter anterior sacral foramina and exit posterior sacral foramina

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13
Q

Superior gluteal a supplies what structures?

A

Piriformis
Gluteal mm
Tensor fascia lata

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14
Q

What artery if the terminal branch of the posterior division of Internal iliac a?

A

Superior gluteal a

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15
Q

What are the nine branches of Anterior division of Internal iliac a?

A
  1. Umbilical a
  2. Superior vesical aa
  3. Obturator a
  4. Inferior vesical a
  5. Uterine a
  6. Vaginal a
  7. Middle rectal a
  8. Internal pudental a
  9. Inferior gluteal a
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16
Q

Superior vesical aa that are branches of the umbilical a supply what structure?

A

Urinary bladder

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17
Q

Obturator a supplies which structures?

A

Pelvic muscles
Head of the femur
Medial thigh

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18
Q

Accessory obturator a is present in what percent of the population?

A

20%

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19
Q

Inferior vesical a supplies what structures?

A

Urinary bladder
Ureter
Prostate
Seminal vesicles

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20
Q

Uterine a supplies what structures?

A

Uterus
Uterine ligaments
Uterine tubes
Ovaries

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21
Q

Uterine artery anastomoses with what artery?

A

Ovarian a

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22
Q

Middle rectal a supplies what structures?

A

Rectum
Prostate and seminal vesicles in males
Vagina in females

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23
Q

Internal pudental a

A

Perineum

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24
Q

Internal pudental a exits the pelvis via ______ ________ ________ , loops around the ischial spine to enter the perineum via ______ ________ _______.

A

Greater sciatic foramen

Lesser sciatic foramen

25
Q

Inferior gluteal a supplies what structures?

A 
Piriformis m
Gluteus maximus m
Quadratus femoris 
Pelvic diaphragm
Sciatic nerve
26
Q

T/F: Pelvic Venous plexuses have no valves.

A

True

27
Q

Pelvic venous plexuses have important communications with which venous plexuses?

A

Vertebral (Batson’s veins)

28
Q

Pelvic plexuses are drained by the tributaries of which veins?

A

Internal iliac v
Inferior mesenteric v
Lateral sacral v

29
Q

Internal iliac veins form ________ to the greater sciatic foramen and lie ________-_________ to the internal iliac arteries.

A

Superior; Postero-inferior

30
Q

Internal iliac veins merge with ______ _____ _____ to form common iliac veins, which unite at the level of __/__ disk and drain into IVC.

A

External Iliac V; L4/L5

31
Q

Which vessels are included in the term ‘pelvic veins?’

A

Lateral sacral veins
Superior gluteal vein
Superior rectal vein
Testicular/ovarian vein

32
Q

Lateral sacral vein is a tributary to which vein?

A

Internal iliac v

33
Q

Lateral sacral vein anastomoses with which plexus?

A

Internal vertebral plexus

34
Q

Lateral sacral vein provides a _________ pathway to reach both SVC and IVC.

A

collateral

35
Q

What vein is a pathway for metastatic cells of ovarian and prostate cancer to get to the vertebrae and cranial cavity.

A

Lateral sacral vein

36
Q

Superior gluteal vein is a tributary of which vein?

A

Internal iliac vein

37
Q

Superior rectal vein is a tributary of which vein?

A

Inferior mesenteric vein

38
Q

What are the four groups of lymph nodes draining the pelvic viscera?

A

External iliac
Internal iliac
Sacral
Common iliac

39
Q

Which nodes drain into external iliac lymph nodes?

A

Inguinal nodes

Superior parts of middle to anterior pelvic viscera

40
Q

Which nodes drain into internal iliac lymph nodes?

A

Inferior pelvic viscera
Deep perineum
Gluteal region

41
Q

Which lymph nodes drain into sacral lymph nodes?

A

Postero-inferior pelvic viscera

42
Q

Which lymph nodes do all the lymph nodes drained by pelvic viscera drain into?

A

Common iliac nodes

43
Q

Which lymph nodes do the common iliac lymph nodes drain into?

A

Lumbar nodes

44
Q

What somatic nerve plexuses innervate pelvis? Which spinal nerves do each include?

A

Sacral plexus; (S1-S4)

Coccygeal plexus; (S4-S5)+Co

45
Q

What are the nerves in the sacral plexus? What spinal nerves do each include?

A

Sciatic n; (L4-S3)

Pudental n; (S2-S4)

Superior gluteal n; (L4-S1)

Inferior gluteal n; (L4-S2)

46
Q

Structures innervated by sciatic n

A

Hamstrings
Leg
Foot

47
Q

Structures innervated by the pudental n

A

Perineum

48
Q

Which structure does the pudental n pass through to enter perineum?

A

Lesser sciatic foramen

49
Q

Structures innervated by superior gluteal n

A

Gluteus medius m

Gluteus minimus m

50
Q

Structures innervated by inferior gluteal n

A

Gluteus maximus m

51
Q

What structures supply autonomic innervation to the pelvic viscera?

A

Hypogastric plexuses (superior and inferior)

Pelvic Splanchnic Nerves

52
Q

Coccygeal plexus innervates what structures?

A

Coccygeus m
Part of levator ani
Sacrococcigeal joint

53
Q

Which plexus supply sympathetic innervation to pelvic viscera?

A

Hypogastric plexuses

54
Q

Which nerves supply parasympathetic innervation to pelvic viscera?

A

Pelvic Splanchnic Nerves

55
Q

Which spinal cord levels do pelvic splanchnic nerves arise?

A

S2, S3, S4

56
Q

Which structures are associated with pelvic plexuses in males?

A

prostate and seminal vesicles

57
Q

In males, _____________ prostatic fibers of pelvic plexus penetrate the pelvic diaphragm to reach the erectile tissues in the penis, producing an erection.

A

Parasympathetic

58
Q

Which structures are associated with pelvic plexuses in females?

A

Cervix of the uterus

Lateral fornices of the vagina

Endo/Repro (8 decks)

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