Anatomy Of The Pelvic Region Flashcards

1
Q

Bones of pelvis made of?

A

Two innominate form from ilium, ischium and pubis

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2
Q

Pubic symphysis is ?

A

Fibrocartilaginous disc, wider in females

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3
Q

Sacroiliac joint is?

A

Secondary cartilaginous joint

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4
Q

Anything above ala is known as?

A

False pelvis

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5
Q

Outlet of pelvis is made of?

A

Coccyx, pubic arch, ishcial tuberoisty and sacrotuberous ligament

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6
Q

Open book fracture?

A

Pubic symphysis completely broken apart

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7
Q

Obturator internus action?

A

Rotates thigh laterally

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8
Q

Piriformis action?

A

Rotates thigh laterally and abducts

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9
Q

Pelvic diaphragm made of?

A

Coccygeus and levator ani muscle

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10
Q

Levator ani formed from?

A

Puborectalis (allows defecation when relaxes)
Pubococcygeus
Iliococcygeus

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11
Q

Innervation to levator ani?

A

S4

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12
Q

Levator ani help?

A

Maintain intraabdominal pressure, help in labour and defecation

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13
Q

Gonadal veins drain back into?

A

IVC or left renal vein

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14
Q

Pudendal nerve transverses through?

A

Greater and lesser foramen

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15
Q

Pudendal nerve gives rise to the?

A

Inferior rectal, posterior scrotal and labial branches and dorsal nerve to penis/clitoris and perineal branches

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16
Q

Pain line?

A

Anything above felt in abdomen and anything below felt in pelvis

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17
Q

Sacrum is formed from?

A

Fusion of 5 sacral vertebrae

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18
Q

Coccyx is formed from?

A

Fusion of 4 coccygeal vertebrae

19
Q

Pelvic inlet is formed from?

A

Promontory and ala, right and left line terminalis

terminalis is made of arcuate line, pecten pubis and pubic crest

20
Q

Lesser pelvis contains?

A

Reproductive, urinary and gastrointestinal organs

21
Q

Obturator foramen is closed by obturator membrane except to allow passage to?

A

Obturator nerve, artery and vein

22
Q

Piriform attaches to?

A

Posterior pelvic walls

23
Q

Sacral plexus nerves?

A

Sciatic nerve
Pudendal nerve
Superior gluteal and inferior gluteal

24
Q

Sacrum is formed by how many vertebrae?

A

5

25
Q

Coccyx was formed by how many vertebra?

A

4

26
Q

Pelvic brim is made of?

A

Promontory and ala of sacrum, and then Linda terminals which consists of (pubic crest, pecten pubis, and accurate line)

27
Q

Sciatic Foramen is formed by?

A

Sacrotuberous and sacrospinous ligament

28
Q

What is pelvic floor made of?

A

Occygeus and lavatory ani muscles

29
Q

What is posterior wall of pelvic cavity made of?

A

Piriformis muscle and sacral plexus and sacrum

30
Q

What is lateral wall of pelvis made of?

A

Right and left hip bones obturator internus muscle and obturator fascia

31
Q

Main artery supplying pelvis?

A

Internal iliac artery

32
Q

Gonadal artery comes from?

A

Abdominal aorta

33
Q

Posterior division of internal iliac artery splits into?

A

Iliolumbar
Lateral sacral
Superior gluteal

34
Q

Anterior division of internal iliac artery?

A

Umbilical artery then obturator artery and superior Vesical artery
Inferior vesical artery (supplying prostate)
Middle rectal artery
Pudendal
Inferior gluteal

In females there is an extra uterine artery present and inferior vesical artery becomes vaginal artery

35
Q

Ovarian artery comes from?

A

Aorta

36
Q

Median sacral artery comes from?

A

Abdominal aorta

37
Q

Superior rectal artery comes from?

A

Inferior mesenteric

38
Q

Somatic plexuses in pelvis includes?

A

l4 to Co

39
Q

Sacral pelvis includes?

A

Sciatic nerve (leg and foot)
Pudendal nerve
Superior gluteal nerve
Inferior gluteal nerve

40
Q

Parasympathetic supply?

A

Pelvic splanchnic nerves s2-s4

41
Q

Sympathetic flow supply?

A

Superior and inferior hypogastric plexuses

And sacral sympathetic trunk

42
Q

What does the pudendal nerve supply?

A

inferior rectal, perineal branches, posterior scrotal/labia branches and dorsal nerve to the penis/clitoris.

43
Q

Parasympathetic flow is through?

A

Pelvic splanchnic nerves S2-4

44
Q

Sympathetic flow?

A

Sacral sympathetic trunk

Superior and inferior hypogastric plexuses