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zAnatomy Block II > Pelvis > Flashcards

Pelvis Flashcards

1
Q

posterior edge of pelvis

A

os coxae

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2
Q

3 bones of os coxae

A

big top part: ilium
low posterior: ischium (sit on)
low anterior: pubis

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3
Q

posterior notches

A

greater/lesser sciatic notch
ischial spine in between
most caudal: ischial tuberosity

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4
Q

anterior notch and foramen

A

pubic symphysis

obturator foramen

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5
Q

in females, wider what?

A

greater sciatic notch
subpubic angle
circular pelvic inlet

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6
Q

where do we find pelvic viscera?

A

infraperitoneal

draping of peritoneum creates pouches infections might drain into

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7
Q

name of pouches (M vs. F)

A

m: rectovesicular
f: vesiculouterine & rectouterine

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8
Q

urethra size in M v F

A

female: short (UTI’s more common)
male: long, thru prostate & penis

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9
Q

male urethra parts (4)

A
  1. preprostatic (thru internal sphincter)
  2. prostatic (thru prostate)
  3. membranous part (passing thru external sphincter)
  4. spongy part (thru penis)
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10
Q

what contracts during ejaculation?

A

internal urethral sphincter

so don’t get sperm up in bladder

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11
Q

route of sperm

A

testis (develop)
epididymis (mature/stored)
ductus/VD in spermatic cord via inguinal canal
behind bladder to ejactulatory ducts
urethra: prostatic, membranous, spongy/penile

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12
Q

accessory glands contributing to semen

nutrition/transport/protection

A 
2 seminal vesicles (post to bladder)
single prostate (inf to bladder)
2 bulbourethral (communicate to spongy urethra)
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13
Q

bulbo glands do what?

A

clear out any remaining urine

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14
Q

benign prostatic hypertrophy

what is compressed?

A

common in M 55+

extra growth –> compressed prostatic urethra

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15
Q

prostate cancer

A

not overall hypertrophy
instead localized tumor may/may not compress urethra
slow-growing, but if metastasizes spreads FAST
digital rectal exam feels posterior half

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16
Q

uterus

A

body –> cervix –> vagina

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17
Q

round ligament of the uterus attaches where?

A

base of uterus

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18
Q

broad ligament

A

ovary to fallopian tube

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19
Q

uterine tubes aka?
attached to ovaries?
what anchors tubes to uterus?

A

oviducts/fallopian tubes (open into perit)

no, via ovarian ligament

20
Q

borders looking into base of cervix

A

A/P/lateral vaginal fornices

21
Q

broad ligament components

A

mesometrium (att to sides of uterus)
mesosalpinx (covers tubes)
mesovarium (covers ovary)

22
Q

suspensory ligament of the ovary

A

fold in the peritoneum surrounds ovarian artery projects up toward aorta

23
Q

muscular flexures of rectum serve what purpose?

A

maintain fecal continence

24
Q

sphincters

A 
internal involuntary (symp contracts, PS relaxes)
external voluntary
25
Q

internal iliac artery

A

aorta –> R/L common iliac –> each goes ext/int iliac

26
Q

arteries to body wall, limbs, perineum (6)

A

iliolumbar & lateral sacral
sup & inf gluteal
obturator
internal pudendal

27
Q

arteries to pelvic viscera (5)

A

umbilical
sup vesicular
inf vesicular (M)/uterine (F)
middle/inf rectal

28
Q

bladder blood supply

A 
sup vesicular
inf vesicular (M) / uterine (F)
29
Q

uterus/ovary blood supply

A

uterine artery via internal iliac

ovary: aorta

30
Q

water under the bridge

A

ureter travels inferior to blood vessels

31
Q

rectum blood supply (via 3)

A

superior rectal via inf mesenteric
middle rectal via int iliac
inferior rectal via int pudendal

32
Q

pectinate line separates?

*can see as a white line

A

meeting of endoderm/ectoderm
no mesoderm in between

superior = inf mesenteric, PORTAL venous system, visceromotor/visceral afferents, internal iliac nodes
inferior = internal iliac, CAVAL system, somatomotor/general sensory, superficial inguinal nodes

also determines internal vs. external hemorrhoids

33
Q

sacral plexus branches from where?

A

spinal nerves L4/5, S1-S4
sensory, sm, sympathetics
to perineum, gluteal region, posterior thigh, leg, foot

34
Q

hypogastric plexuses

A

superior: just inf to aortic bifurcation

hypogastric nerves continue along rectum and become inferior

35
Q

pelvic plexuses RUVP

A

rectal, vesicular, prostatic (M), uterovaginal (F)

36
Q

sympathetics to pelvic viscera

A

lumbar/sacral splanchnics

come off symp chain ganglia

37
Q

lumbar/sacral splanchs go to which plexuses?

A

superior HP

inferior HP

38
Q

parasympathetic to pelvic viscera

exit via which rami?

A 
pelvic splanchnics (S2-4)
exit via ventral rami into plexuses
39
Q

pelvic nerves to descending colon/sup rectum?

A

superior HP

40
Q

pelvic nerves to bladder/uterus/inf rectum/erectile tissues?

A

inferior HP

41
Q

visceral afferents run w (pain vs. reflexes)?

A

pain –> sympathetics
reflexes –> parasympathetics

superior to pain line follow sympathetics
inferior to pain line follows parasympathetics
reflexes follow same path, this only applies to pain sensation onlynhf

42
Q

3 bones comprising pelvic inlet

A

symphysis
iliopectineal lines
sacral promontory

43
Q

3 bones comprising pelvic outlet

A

pubic arch
ischial tuberosities
coccyx

44
Q

the sacrum is tipped in which direction in females?

A

more posteriorly

45
Q

watch out for which fibers during a prostatectomy/hysterectomy?

A

nervi erigentes (erection of clitoris/penis)

46
Q

what happens below the pain line that is contradictory?

A

pain fibers follow parasympathetics

inferior bladder, urethra, cervix, vagina, inferior sigmoid colon, RECTUM

zAnatomy Block II (7 decks)

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