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Part 1 Anatomy > Pelvis > Flashcards

Pelvis Flashcards

1
Q

Greater sciatic foramen

A

Sciatic nerve
Sup and inf gluteal nerves and vessels
Pudendal nerve
Post femoral cutaneous nerve
Nerves to obturator internus and quadratus femorus

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2
Q

Lesser sciatic foramen

A

Tendon of obturator internus
Nerve to obturator internus (both)
Pudendal nerve (both)
Internal pudendal artery and vein
PINT

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3
Q

Lumbar plexus

A

On post psoas major
In front TPs lumbar vert
Stimulation causes quads contraction
L1-4
4 mixed and one sensory (lat cut)

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4
Q

Male vs female pelvis

A

male more thick, and deep with narrow lesser pelvis, heart shaped inlet, small outlet, arch <70 degrees, sciatic notch 70, round obturator foramen, large acetabulum
Female thin wide and shallow, oval wide inlet, oval obturator formen, >80 arch, 90 sciatic notch

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4
Q

greater and lesser pelvic brim

A

greater (brim)- S1 and iliac ala (iliem and sigmoid)
Lesser (inlet) - ala of sacrum, ileum below arcuate line, pubis

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5
Q

Sacrotuberous ligament

A

from posterior ilium, sacrum and coccyx to ischial tuberosity

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6
Q

Sacrospinous ligament

A

lateral coccyx and sacrum to ischial spine
splits sciatic foramen into greater and lesser

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7
Q

Muscles of the pelvic floor

A

Lateral - obturator internus
Post sup - piriformis
Floor - coccygeus + levator ani

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8
Q

Levator ani

A

puborectalis - faecal continence, from pubis to pubis
pubococcygeus - forms anococcygeal body
iliococcygeus - post obturator fascia to perineal body

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9
Q

Internal iliac

A

from L5/S1
Main supplier pelvis
Ends at greater sciatic foramen where splits ant and post
Other pelvic arts
sup rectal from inf mes
median sacral from bifuration aorta
gonadal from aorta

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10
Q

Posterior iliac artery

A

iliolumbar
lateral sacral
superior gluteal

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11
Q

Pelvic lymph drainage

A

bladder -> external iliac
Most others to internal iliac

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12
Q

Obturator nerve

A

L2-4
extraperitoneal lat wall pelvis
after foramen splits into ant and post
medial thigh muscles

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13
Q

Sacra plexus

A

L4 S1 - sup gluteal - exits sup to piriformis
L5 S2 - inf gluteal (inf to coccygeus)
L4 S3 - sciatic, post thigh
S1 3 - post fem cutaneous
S2 4 - pudendal - perineium

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14
Q

Ureters

A

Water under bridge (testicular or ovarian arteries)

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15
Q

Ureter blood and nerve

A

renal, common iliav, int iliac and gonadal
T10-L2

16
Q

Urethra blood supply

A

Female - vaginal and int pudendal
Male - inf vesicular (prostatic branch), middle rectal

17
Q

Male urethra

A

intramural - internal urethral sphincter
prostatic - prostatic and ejac ducts, widest part
intermediate membranous - narrowest, external urethral sphincter
spongy - longest, bulbourethral + urethral glands

18
Q

Rectum anatomy and blood

A

S3 to coccyx
anorectal flexure 80 degrees through pelvic diaphragm
BLood sup IMA
med internal iliac
inf - int pudendal (sup and inf anastamose)

19
Q

Epithelium ovaries

A

single layer cuboidal

19
Q

Fallopian / uterine tubes

A

10cm
infundibulum by ovary
ampulla widest and longest (fertilisation)
isthmus - thick walled
uterine part
art from internal iliac

20
Q

Ovarian artery

A

from L2
post abdominal wall
crosses ext iliac at pelvic brim and enters suspensory lig

21
Q

Layers uterus

A

perimetrium - outer thin
myometrium - smooth muscle, vascular
endometrium - mucous, blastocyte attaches, sheds in period

22
Q

Ligaments ovary and uterus

A

Broad - flat peritoneium from walls each side
ovarian - from ovary to uterus
suspensory - ovary to abdo wall with vasculature
round - uterine horns to labia (through inguinal canal) remnants gubernaculum
cardinal - by cervix, have uterine artery and veins

23
Q

Vagina

A

7-9cm
art - sup uterine, inf vagina and int pudendal
nerves - somatic only lower quarter - deep perineal

24
Q

Epithelium uterus

A

Simple columnar

25
Q

Location vas deferens

A

Lower posterior spermatic cord

26
Q

Sympathetic supply to testis

A

T10

27
Q

Location appendix testis

A

Upper pole testis

28
Q

Male urethra in

A

Corpus spongiosum

29
Q

Structure superior to piriformis in sciatic foramen

A

Superior gluteal artery and nerve

30
Q

Sympathetic innervation rectum

A

T12-L2 lumbar plexus

31
Q

Lumbrosacral trunk

A

L4/5

Part 1 Anatomy (9 decks)

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