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?

25
Coccyx was formed by how many vertebra?
4
26
Pelvic brim is made of?
Promontory and ala of sacrum, and then Linda terminals which consists of (pubic crest, pecten pubis, and accurate line)
27
Sciatic Foramen is formed by?
Sacrotuberous and sacrospinous ligament
28
What is pelvic floor made of?
Occygeus and lavatory ani muscles
29
What is posterior wall of pelvic cavity made of?
Piriformis muscle and sacral plexus and sacrum
30
What is lateral wall of pelvis made of?
Right and left hip bones obturator internus muscle and obturator fascia
31
Main artery supplying pelvis?
Internal iliac artery
32
Gonadal artery comes from?
Abdominal aorta
33
Posterior division of internal iliac artery splits into?
Iliolumbar Lateral sacral Superior gluteal
34
Anterior division of internal iliac artery?
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
Ovarian artery comes from?
Aorta
36
Median sacral artery comes from?
Abdominal aorta
37
Superior rectal artery comes from?
Inferior mesenteric
38
Somatic plexuses in pelvis includes?
l4 to Co
39
Sacral pelvis includes?
Sciatic nerve (leg and foot) Pudendal nerve Superior gluteal nerve Inferior gluteal nerve
40
Parasympathetic supply?
Pelvic splanchnic nerves s2-s4
41
Sympathetic flow supply?
Superior and inferior hypogastric plexuses | And sacral sympathetic trunk
42
What does the pudendal nerve supply?
inferior rectal, perineal branches, posterior scrotal/labia branches and dorsal nerve to the penis/clitoris.
43
Parasympathetic flow is through?
Pelvic splanchnic nerves S2-4
44
Sympathetic flow?
Sacral sympathetic trunk Superior and inferior hypogastric plexuses