ORG ANA: Pelvic Cavity Flashcards
where is pelvic cavity lcoated
betw pelvic inlet and outlet
what divides the pelvic cavity
pelvic diaphragm into main PC and perineum
what does the pelvic cavity contain
lower GI tract
distal urinary tract
internal reproductive organs
the pelvic cavity is the cavity of _____
the true pelvis
the sigmoid colon is continous w _____
rectum at S3
the sigmoid colon is from ____
descending colon at pelvic brim
what is the sigmoid colon
s shaped and 10-15 in long
what attaches the sigmoid to the posterior wall
sigmoid mesocolon
what supplies the sigmoid
sigmoid branch of inferior mesenteric artery
drains to inferior mesenteric vein
nerve supply of sigmoid
inferior hypogastric plexus
anterior relation of sigmoid colon
male - urinary bladder
female - posterior uterus and upper vagina
posterior relations of sigmoid
rectum
sacrum
lower ileum
what is volvulus
sigmoid rotates counterclockwise around mesentery - blood supply is cut off or ischemia
common site of cancer
sigmoid colon
what is diverticula
out-pouchings of the wall or mucous membrane ng sigmoid - not really a problem
what is diverticulitis
once feces enters diverticula - infflamation and enlarged na may pain
what is the usual presenting symptom of cancer in sigmoid
blood in stool
most common cause of LLQ pain
diverticulitis
what is colostomy
surgical procedure connecting part of colon to opening of abdomen w a stoma
what is the rectum
about 5 in; galing sigmoid at S3 tas maging anal canal sa pelvic floor then anus s perineum
lower part of rectum that is dilated
rectal ampulla
responsible for producing anorectal angle
puborectalis
desrcibe the coverage of rectum
covered by peritoneum except sa lower third
arrangement of muscular coat
outer - longitudinal
inner - circular
SMOOTH MUSCLES YAN
semicircular permanent folds in the colon
houston valves or transverse folds
posterior relationship of rectum
sacrum and coccyx
piriformis, coccygeus, levator ani
sacral plexus and sympathetic trunks
anterior relationship of rectum in male
upper 2/3 rectum - sigmoid colon, ileum
lower 1/3 of rectum - posterior bladder, vas deferens and seminal vesicle of each prostae
anterior relationship of rectum in female
upper 2/3 rectum - sigmoid colon, ileum
lower 1/3 of rectum - posterior vagina
blood supp of rectum
superior rectal artery, middle rectal, inferior rectal
nerve supp of rectum
inferior hypogastric plexuses - sensitive to stretch only kaya pag may tumor no pain
of the 2 which is sensitive to pain rectum or anal canal
anal canal
what is hirschprung’s disease
aka primary megacolon - inability to pass out meconium sa infants
where is hirchsprung common
male infants
cause of hirschprung’s disease
certain nerve cells in the wall of colon does not develop before birth = mag ddilate or ipon yung tae
most common site for hirschprung’s disease
rectum
treatment for hirschprung’s disease
first stage - relieves intestinal obstruction through colostomy
second stage - remove disease portion of bowel through pull though procedure
the ureters are what type of organ
both abdominal and pelvic
what are kidneys
reddish brown located retroperitoneal under costal margin
function of kidneys
excrete waste from metabolism
control water and electrolyte balance
maintains acid-base balance of blood
what is the hilum
slit at medial concave border of kidney
what passes through the hilum
renal vein
2 branches renal artery
ureter
3rd branch of renal artery
lymph vessels
sympathetic fibers
what is renal sinus
an extension of hilum that contains the renal pelvis
yung major and minor calyces
what makes up the medulla
renal pyramids
renal papilla
renal collumns
medullary rays
outer layer of kidney
cortex
inner layer of kidney
medulla
anterior relationship of R kidney
adrenal
liver
2nd part duodenum, right colic flexure
anterior relationship of L kidney
adrenal
spleen, pancreas
jejunum, left colic flexure
posterior relationship of R kidney
diaphragm, costodiaphragmatic recess of pleura, 12 th rib
psoas, quadratus lumborum, transversus abdominis muscle, subcostal
iliohypogastric and ilioinguinal nerves
posterior relationship of L kidney
diaphragm, costodiaphragmatic recess of pleura, 11-12 th rib
psoas, quadratus lumborum, transversus abdominis muscle, subcostal
iliohypogastric and ilioinguinal nerves
blood supp of kidney
renal
segmental
lobar
interlobar
interlobar
interlobular
arcuate
layers that covers the kidney
fibrous capsule
perireneal fat
renal fascia
pararenal fat
nerve supp of kidney
sympathetic plexus
afferent enters T10-12
what are suprarenal glands
yellow retriperotineal organs on top of kidneys
blood supply of suprarenal glands
inferior phrenic artery, aorta and renal
IVC on left and renal vein on right
whre na iipit yung kidney stones
sa 3 constrictions of ureter
3 constrictions of ureter
renal pelvis joins ureter
crosses pelvic brim
pierces bladder
in pelvic area the ureter is crossed by
men - ductus deferens
female - uterine women
blood supp of ureter
upper - renal art/vein
middle - testicular/ovarian
lower - superior vesical
parts of suprarenal glands
cortex - yellow
medulla - dark brown
each is unique in the hormones they produce
identify if right or left suprarenal
pyramid shape
right
identify if right or left suprarenal
crescent shape
left
identify if right or left suprarenal
on upper pole lng
right
identify if right or left suprarenal
from upper pole to medial border until hilum
left
identify if right or left suprarenal
behinds R lobe of liver and IVC
right
identify if right or left suprarenal
behind pancreas and stomach
left
identify if right or left suprarenal
rests post in diaphragm
both
function of cortex of adrenal
mineral corticoids - fluid electrolyte
glucocorticoids - carbs, fat and protein metabolism
sex hormones - development
function of medulla of adrenal
catecholamines - epi and norepi
anterior relationships of R ureter
duodenum
terminal ileum
right colic and ileocolic vessel
R testicular/ovarian artery
root of mesenetery of small intestine
posterior relationships of L ureter
psoas separate it from lumbar transverse process
bifurcation of left common iliac
anterior relationships of L ureter
sigmoid colon and mesocolon
left colic vessesls
L testicular/ovarian vessels
posterior relationships of R ureter
psoas separate it from lumbar transverse process
bifurcation of right common iliac
max capacity of bladder
500mL
describe the apex of bladder
behind symphisis pubis and connected to umbillicus via median umbillical ligament
desribe the base of bladder
superolateral angle is joined by ureter and and urethra s baba
what covers superior surface of bladder
peritoneum
relation of superior surface of bladder
ileum or sigmoid
relation of inferolateral surface of bladder
anterior to retropubic fat pad and pubic bone
posterior to obturator internus and levator ani
relations of neck of bladder
rests on upper prostate and held in pos by puboprostatic/pubovesical ligament
what is trigone
triangular shape ng smooth muscle n may mucous membrane
where does urethra exit
lowes point of trigone
significance of oblique orientaion of ureter
provides valve like action preventing reverse flow of urine
what is detrusor
layer of smooth muscle
what happems when bladder is stretched
signal parasymph nerveous system to contract detrusor and expel urine
blood supp of bladder
superior and inferior vesical
branchof internal iliac
nerve supp of urinary bladder
inferior hypogastric plexus
explain micturition
open internal sphincter autonomically and external voluntarily
explain micturition reflex
initiated if 300ml is reached
stretch receptors are stimulated = CNS desire to urinate
afferent pass pelvic splachnic and enter S2-L2
detrusor contracts tas sphincter vesicae relax
efferent pass via pudendal and undergo relax
what atonic bladder
in GSW during spinal shock - bladder is relaxed but sphincter is contract - not aware full bladder
where does automatic reflex bladder happen
recovered from spinal shock and in infants
dementia and comatose
what is automatic reflex bladder happen
bladder fills tas empties reflexly
what is autonomus bladder
walang external reflex control - bladder is flaccid so manual compression para ma empty
where does urethra begin
base of bladder and ends w opening in perineum
describe urethra in women
short and prone to UTI
what are skenes gland
2 paraurethral mucous glands
describe urethra in men
long mga 20 cm
divided into preprostatic, prostastic and spongy
describe preprostatic urethra
from bladder neck to superior prostate - 1-1.5
prevents retrograde of semen
the preprostatic urethra is associated w ____
associated w internal urethral sphincter
describe prostatic urethra
widest and most dilated - 4cm long
from prostate and pierces ejaculatory duct
describe membranous part
shortest part - 1-2 cm long
apex of prostate to bulb of penis
membranous part is assoc w ______
external urethral sphincter and bulbourethral gland posterolat
describe spongy urethra
longest part and ends at external urethral orifice
recieves openings of urethral glands
function of vas deferens
conveys mature sperm from epididymis to ejac duct
dilated terminal part of vas deferens
ampulla of vas deferens
what forms ejaculatory duct
vas deferens and seminal vesicle
what is seminal vescile
lobular - produces secretion that is added to seminal fluid for nourishment
blood supp of seminal vesicles
inferior vesicle and middle rectal artery tas internal iliac vein
describe path of jakol duct
pierces posterior prostate and opens in prostatic urethra
relation of base of prostate
lies superiorly s bladder neck
relation of apex of prostate
lies inferiorly s urogenital diaphragm
describe prostate
made of numerous bands
describe anterior lobe of prostate
devoid of glandular tissue; in front urethra
describe posterior lobe of prostate
behind urethra and below ejac ducts
w gland tissue
describe median lobe of prostate
betw urethra and ejac ducts; related to trigon
describe L and R lateral lobe of prostate
separated by vertical groove
superior relation of prostate
base is continous w neck of bladder
inferior relation of prostate
lies on upper urogenital diaphragm
anterior relation of prostate
symphysis pubis - sep by extraperitoneal space at cave of retzius
posterior relation of prostate
anterior surface of rectal ampulla sep by rectovesical septum
function of prostate
produces milky fluid containing citric acid and acid phosphatase
blood supply of prostate
inferior vesical and middle rectal arteries
nerve of prostate
inferior hypogastric plexus
where is benign enlargement of prostate common
men > 50 yo
SSx of BPH
intense feeling to pee and difficult to pee weak stream
complication of BPH
backpressure effect to ureter and kidney _ inferion and inflammation of badder cystitis
common lobe of prostatic center
posterior lobe
early detection through rectal exam
what are bulbourethral glands
small pea shape - opens into bulb of spongy urethra
where is the ovary found
sa ovarian fossa on lateral wall of pelvis
what is the suspensory ligament
part betw mesovarium and lateral wall of pelvis
what is tunica albuginea
thin fibrous capsule around ovary
wha t is the function of ovaries
produces estrogen and progesteron
site of egg production
describe is the uterine tube
4 inches long and has 4 parts
what is infundibulum
lateral projections and has a finger like edge called fimbrae - nakuha ng egg
what is the ampulla
widest part - fertilization takes place
what is the isthmus
narrowest just lateral uterus
what is the intramural part
segment that pierces uterine wall
function of uterine tube
recieves ovum and site of fertilization - transports uterus
passage of sperm
blood sup of uterine tube
uterine artery
nerve of uterine tube
inferior hypogastric plexus
what is pelvic inflammatory disease
pathogen though sexual contacct ascends to uterine tube = salpingitis - pus leak
what is ectopic pregnancy
ovum occurs outside of uterine cavity - pwd mag rupture tube
what is tubal ligation
division of uterine tube - permanent birth control
describe fundus of uterus
lies above entrance of fallopian tube
describe body of uterus
below entrance of fallopian tube continous w cervix
descrive cervix
divided into supravaginal and vaginal parts
describe cavity of uterus
trinagular and communivates w vagina
fucntion of uterus
retention and nourishment of fertilized ovum
anterior relationships of uterus
uterovesical pouch and superior surface of bladder
posterior relationships of uterus
rectouterine pouch or pouch of Douglas
ileum and sigmoid
lateral relationships of uterus
broad ligament and uterine artery and vein
rrelationships of supravaginal cervix
ant - sup bladder
laterally - ureter
relationships vaginal cervix
ant - anterior fornix of vagina
lat - lateral fornix
compare anterversion and anteflexion
anterversion - uterus is forward 90 deg
anteflexion - uterus bent horizontal - 125
compare retroverted and retroflexed
retroverted - fundus is bent back ward on vafina
retroflexed - body is bent backward
what is myometrium
thick smooth muscle
what is endometrium
mucus lining
what is parametrium
supravaginal part of cervix surrounded by visceral pelvic fascia; where uterine artery crosses the ureter on each side
blood supp of uterus
uterine artery and vein
nerve of uterus
inferior hypogastric plexus
what supports the uterus
levator ani the 3 ligaments of pelvic fascia
what are the 3 ligaments of uterus
transverse cervical
pubocervical
sacrocervical
attachment of cardinal ligament
cerviz to upper vagina and lateral wall of pelvis
attachment of pubocervical ligament
cervix and posterior surface of pubis
also supports bladder
attachment of sacrocervical ligament
cervix and lower end of sacrum
what triggers onset of labor
withdrawal of progesterone
discuss initiation of contractions in uterus
once the fetal head starts to stretch the cervix - nervous reflex is initiated causing powerful contractions s uterus
discus the stages of labor
stage 1 - cervix relaxes = dilate
stage 2 - contractions inc in strength and infant is delivered
stage 3 - placenta is expelled
what is the vagina
3 inches n muscular tube that extends upward into uteris
what pierces the anterior wall of vagina
cervix pierces the anterior wall
loc of upper vagina
above pelvic floor
loc of lower vagina
w/in perineum
what are the divisions of vagina
aka fornices
anterior
posterior
lateral
what is the hymen
thin mucosal at vaginal orifice tas perforated yung center
anterior rela of vagina
bladder and urethra
posterior rela of upper vagina
rectouterine pouch - douglas
posterior rela of middle vagina
ampulla of rectum
posterior rela of lower vagina
perineal body
lateral rela of middle vagina
anterior fibers of perineal body
lateral rela of upper vagina
ureter
lateral rela of lower vagina
urogenital diaphragm and bulb of vestibule
functions of vagina
part of birth canal
excretory duct for mens
blood supp of vagina
vaginal artery and plexus of vaginal vein
nerve supp of vagina
inferior hypogastric plexus
support for upper vagina
levator ani, cardinal, pubocervical and sacrocervical ligmants
support for middle vagina
urogenital diaphragm
support for lower vagina
perineal body
loc of peritoneum
from anterior abd wall to upper bladder
rela of of peritoneum
ant - uterus and vagina
post - rectum
what is the broad ligament
2 layer fold of peritoneum that spans pelvic cavity
what is mesometrium
largest part
what is mesovarium
attaches ovary to broad ligament
what is mesosalpinx
mesentery of fallopian tube; so betw uterine tube nd mesovarium
what does broad ligament contain
uterine tube
ovary
round ligament
suspensory ligament
uterine and ovarian bv, lymph and nerves
what is placenta previa
placenta implants sa lower part ng uterus and can cause hemmorhage at 28th wk = expansion of uterine wall
what is placental abruption
premature separation of placenta sa uterus wall
what is culdocentesis
since malapit yung perioneal acvity sa posterior fornix -kaya i drain yung pelvic abcess through vagina
causes of vaginal trauma
coital injury, picket fence impalement, under water pressure
1st deg vaginal trauma
vaginal mucosa is torn
2nd deg vaginal trauma
perineal muscles torn
3rd deg vaginal trauma
anal sphincter torn
4th deg vaginal trauma
rectum torn
complication of laceration of vaginal wall
especially posterior fornix - violates pouch of douglas and cause prolapse of small intestine
factors that contribute to varicose veins
pressure of uterus in preggy sa IVC and inferior mesenteric vein
impaired venous return
inc progesterone elevel = relax smooth muscle of veins nag dilate