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Human Body (Anatomy) > Pelvis 07: Blood Supply, Lymphatics, and Innervation of Pelvic Viscera > Flashcards

Pelvis 07: Blood Supply, Lymphatics, and Innervation of Pelvic Viscera Flashcards

1
Q

What are the divisions of the common iliac arteries?

A

External and internal iliacs

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2
Q

What is the fate of the external iliac arteries

A

They pass under the inguinal ligament and become the femoral arteries

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3
Q

What are the two main branches of the internal iliacs?

A

Posterior and anterior trunks

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4
Q

What are the main branches of the posterior trunk of the internal iliac?

A

Iliolumbar artery, lateral sacral artery, superior gluteal artery
It does not provide viscera

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5
Q

What are the main branches of the anterior trunk of the internal iliac?

A

Vesical artery, uterine artery, vaginal artery, rectal artery, internal pudendal artery, obturator artery, inferior gluteal artery

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6
Q

What is the blood supply of the uterus and vagina?

A

Ovarian artery off of the aorta; uterine artery off of the anterior trunk of the internal iliac; vaginal artery off of the anterior trunk of the internal iliac; internal pudendal

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7
Q

What is the blood supply of the upper bladder in males?

A

Umbilical artery of the anterior trunk of the internal iliac; it splits into the superior vesical artery and vesiculodeferential artery

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8
Q

What is the blood supply of the upper bladder in females?

A

Superior vesicle artery off of the umbilical artery off of the anterior trunk of the internal iliac

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9
Q

What does the umbilical artery become beyond the superior vesicle artery in females?

A

Medial umbilical ligament

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10
Q

What is the blood supply of the lower bladder in females?

A

Urethral artery off of the inferior vesical artery off of the vaginal artery off

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11
Q

What is the blood supply of the lower bladder in males?

A

Prostatic branches and urethral branches of the inferior vesical artery off of the anterior trunk of the internal iliac

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12
Q

What are the rectal arteries and where do they originate from

A

Superior: IMA; middle: anterior trunk of internal iliac; inferior: inferior pudendal

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13
Q

What are the arteries of the male perineum?

A

Internal pudendal artery branches off into inferior rectal, artery of the bulb of the penis, perineal artery, dorsal artery of the penis, deep artery`

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14
Q

What are the arteries of the demale perineum?

A

Internal pudendal artery branches off into inferior rectal, perineal artery, dorsal and deep arteries of the clitoris

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15
Q

What are the superficial arteries of the male and female perineum?

A

External pudendal arteries (superficial and deep)

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16
Q

What vessels cross the pelvic diaphragm above the primiformis?

A

Superior gluteal VANs

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17
Q

What vessels cross the pelvic diaphragm below the primiformis?

A

Inferior gluteal VANs, pudendal and internal pudendal

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18
Q

All of the pelvic veins follow the same pattern and branches as the arteries with two exceptions. What are they?

A

Iliolumbar veins drain to the ascending lumbar vein

Umbilical vein becomes ligamentum teres hepatis

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19
Q

What are the three venous plexuses of the pelvis?

A

Vesical, Internal and external rectal

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20
Q

What is the venous plexus of the pelvis found only in males?

A

Prostatic plexus

21
Q

What are the venous plexuses of the pelvis found only in females?

A

Uterine and vaginal plexuses

22
Q

Where does the ovarian vein drain to?

A

Renal vein

23
Q

Where does the uterine plexus drain to?

A

Internal iliac vein

24
Q

Where does the vaginal plexus drain to?

A

Internal iliac vein

25
Q

where does the prostatic plexus drain to?

A

Internal iliac vein and internal vertebral plexus

26
Q

How does blood supply change at the pectinate line?

A

Below: only inferior rectal artery and internal pudendal vein

27
Q

Internal hemorrhoids

A

Hemorrhoids superior to pectinate line, painless

28
Q

External hemorrhoids

A

Hemorrhoids inferior to pectiante line, painful

29
Q

What is the lymphatic drainage of the ovaries and testes?

A

Paraortic nodes

30
Q

What is the lymphatic drainage of most of the pelvic organs?

A

Internal iliac nodes -> common iliac nodes -> paraortic nodes

31
Q

What is the lymphatic drainage of the rectum?

A

Upper: inferior mesenteric nodes -> preaortic nodes

Middle and inferior: internal iliac nodes

32
Q

What is the lymphatic drainage of the anal canal?

A

Above pectinate line: internal iliac nodes

Below pectinate line: superficial inguinal nodes

33
Q

What nerve runs to pelvic viscera?

A

Pelvic splanchnic nerve

34
Q

What nerves run to the pelvic wall?

A

Nerve to piriformis and nerve to obturator internus

35
Q

What spinal cord segments form the nerve to piriformis?

A

L5-S2

36
Q

What spinal cord segments form the nerve to the obturator internus?

A

L5-S1

37
Q

What nerves run to the pelvic diaphragm?

A

Branches of S4 and the pudendal nerve

38
Q

What spinal cord segments form the pudendal nerve?

A

S2-S4

39
Q

What nerves run to the perineum?

A

Pudendal nerve, anococcygeal nerve, branches of S4

40
Q

What spinal cord segments form the anococcygeal nerve?

A

S4, S5, and coccyx

41
Q

What nerves run to the gluteal region?

A

Superior gluteal, inferior gluteal, nerve to piriformis, nerve to obturator internus, nerve to quadratus femoris, perforating cutaneous nerve

42
Q

What spinal cord segments form the superior gluteal nerve?

A

L4-S1

43
Q

What spinal cord segments form the inferior gluteal nerve?

A

L5-S2

44
Q

What spinal cord segments form the nerve to the quadratus femoris?

A

L5-S1

45
Q

What spinal cord segments form the perforating cutaneous nerve

A

S2-S3

46
Q

What nerves run to the lower limbs?

A

Sciatic nerve and posterior cutaneous nerve of the thigh

47
Q

What spinal cord segments form the sciatic nerve?

A

L4-S3

48
Q

What spinal cord segments form the posterior cutaneous nerve of the thigh?

A

S1-S3

Human Body (Anatomy) (38 decks)

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