B5-085 Anterior Abdominal Wall, Inguinal Canal, and Organs Flashcards
I'm so sorry :(
name the quadrant the organ is found in
right lobe of liver
RUQ
name the quadrant the organ is found in
gallbladder
RUQ
name the quadrant the organ is found in
pylorus of stomach
RUQ
name the quadrant the organ is found in
parts 1-3 of duodenum
RUQ
name the quadrant the organ is found in
head of pancreas
RUQ
name the quadrant the organ is found in
right suprarenal gland
RUQ
name the quadrant the organ is found in
right kidney
RUQ
name the quadrant the organ is found in
right hepatic flexure
RUQ
name the quadrant the organ is found in
superior part of the ascending colon
RUQ
right half of transverse colon is in what quandrant?
RUQ
name the quadrant the organ is found in
left lobe of liver
LUQ
name the quadrant the organ is found in
spleen
LUQ
name the quadrant the organ is found in
stomach
LUQ
name the quadrant the organ is found in
jejunum and proximal ileum
LUQ
name the quadrant the organ is found in
body and tail of pancreas
LUQ
name the quadrant the organ is found in
left kidney
LUQ
name the quadrant the organ is found in
left suprarenal gland
LUQ
name the quadrant the organ is found in
left splenic flexure
LUQ
name the quadrant the organ is found in
left half of transverse colon
LUQ
name the quadrant the organ is found in
superior part of descending colon
LUQ
name the quadrant the organ is found in
cecum
RLQ
name the quadrant the organ is found in
appendix
RLQ
name the quadrant the organ is found in
most of ileum
RLQ
name the quadrant the organ is found in
inferior part of ascending colon
RLQ
name the quadrant the organ is found in
right ovary
RLQ
name the quadrant the organ is found in
right uterine tube
RLQ
name the quadrant the organ is found in
abdominal part of right ureter
RLQ
name the quadrant the organ is found in
abdominal part of right spermatic cord
RLQ
name the quadrant the organ is found in
sigmoid colon
LLQ
name the quadrant the organ is found in
inferior part of descending colon
LLQ
name the quadrant the organ is found in
left ovary
LLQ
name the quadrant the organ is found in
left uterine tube
LLQ
name the quadrant the organ is found in
abdominal part of left ureter
LLQ
name the quadrant the organ is found in
abdominal part of left spermatic cord
LLQ
if the uterus or urinary bladder are enlarged, what quandrants could they be found in?
RLQ/LLQ
list the layers of the anterior abdominal wall as you would encounter them dissecting down
8
- superficial fatty layer (camper’s)
- deep membranous layer (scarpa’s)
- external oblique
- internal oblique
- transversus abdominis
- transversalis fascia
- extraperitoneal fat
- parietal peritoneum
extends into scrotum as dartos fascia and into the perineum as colle’s fascia
deep membranous layer (Scarpa’s)
what layer is fat removed from during a liposuction?
superficial fatty (camper’s)
between what two structures do the nerves of the anterior abdominal wall run?
internal oblique
transversus abdominis
descibe the orientation of the muscle fibers for each
external oblique
internal oblique
transversus abdominis
rectus abdominis
external oblique: inferiomedially (hands in pockets)
internal oblique: perpendicular to external obliques
transversus abdominis: horizontal
rectus abdominis: vertical
what muscle of the anterior abdominal wall prevents anterior pelvic tilit?
rectus abdominis
- structure of abdominal wall that is absent in 20% of people
- tenses linea alba
pyramidalis
aponeurosis of the external oblique meets at the midline to join the aponeurosis of the other side, forming what structure?
linea alba
name the muscles that make up the rectus sheath above the arcuate line
differentiate posterior and anterior structures
anterior: external and internal obliques
posterior: internal oblique, transversus abdominis, and transversalis fascia
name the muscles that make up the rectus sheath below the arcuate line
differentiate posterior and anterior structures
anterior: external obliques, internal obliques, transversus abdominis
posterior: traversalis fascia
is the rectus sheath stronger above or below the arcuate line?
why?
above
below, the only posterior structure is transversalis fascia = weak
vertebrae associated with nipple line
T4
vertebrae associated with umbilicus
T10
subcostal nerve is located at what vertebrae?
T12
L1 bifurcates into what two nerves?
- iliohypogastric
- ilioinguinal
what nerve innervates the upper inguinal and hypogastric region?
iliohypogastric
L1
what nerve innervates the mons pubis, anterior scrotum/labia, and the medial thigh?
ilioinguinal
L1
[vessel] will anstomose with [vessel] near the umbilicus
superior epigastric
inferior epigastric
external iliac a. becomes the [vessel] as it crosses the inguinal ligament
femoral a.
the blood vessels of the anterior abdominal wall lie between which two structures?
posterior rectus sheath and rectus abdominis
the internal thoracic a. gives rise to [2 vessels]
superior epigastic and musculophrenic
the external iliac a. gives rise to [vessel]
inferior epigastric
type of hernia common in newborns
umbilical
hernia occuring between umbilicus and xiphoid process
epigastric
hernia occuring along line of linea semilunaris
spigellan
above the transumbilical plane, lymphatics drain to what two structures?
axillary lymph nodes
parasternal lymph nodes
below the transumbilical plane, lymphatics drain to what structure?
superficial inguinal nodes
describe the flow of the deep lymphatics
3 structures
external iliac to common iliac to lumbar nodes
umbilical folds
remnant of obliterated urachus
median umbilical fold
umbilical folds
remnant of obliterated umbilical arteries
medial umbilical fold
umbilical folds
covers the inferior epigastric vessels
lateral umbilical fold
associated with direct inguinal hernias
medial inguinal fossae
associated with indirect inguinal hernias
lateral inguinal fossae
gonad migration follows what structure?
gubernaculum
from what germ cell layer do testes and ovaries derive?
intermediate mesoderm
formed when the testis first migrates out of the abdomen and starts to go through muscular layers
deep inguinal ring
the testis exits through the abdominal ring forming the
superficial inguinal ring
name the abdominal layers that give rise to the testicular layer
- dartos
- external spermatic fascia
- cremasteric fascia
- tunica vaginalis
- internal spermatic fascia
- dartos: Scarpa’s
- external spermatic fascia: external oblique
- cremasteric fascia: internal oblique
- tunica vaginalis: peritoneum
- internal spermatic fascia: transversalis fascia
what nerve innervates the posterior scrotum?
posterior cutaneous of thigh
what nerve innervates the anterior scrotum?
genitofemoral
ilioinguinal a bit as well
caused by fluid in persisent processus vaginalis
hydrocele
hydrocele can be detected using
transillumination
the spermatic cord exits the [structure]
superficial inguinal ring
you’re killing it!
supplies blood to testicle
testicular a.
thought to help with heat reduction in some animals
pampiniform plexus of veins
innervates cremasteric muscle
pulls testicle toward body to regulate temp
genitofemoral
pampiniform plexus of veins becomes enlarged causing scrotal fullness
bag of worms
varicocele
varicocele commonly occurs on which side
left
what structure passes through the superficial inguinal ring?
decribe both male and female
male: spermatic cord
female: round ligament
attaches from ASIS down to pubic tubercle
inguinal ligament
help to stabilize superficial inguinal ring to prevent splitting
2 structures
medial and lateral crus of the external oblique
the same fibers that form the inguinal ligament turn and form the [structure], then split and form the [structure]
lacunar ligament
pectineal ligament
internal oblique and transversus abdominis join to form what structure?
conjoint tendon
inguinal ligament is from what abdominal layer?
external oblique
pubic tract is from what abdominal layer?
transversalis fascia
lacunar ligament is from what abdominal layer?
external oblique
the cremaster muscle is from what abdominal layer?
internal oblique
borders of Hesselbach’s triangle
inferior epigastric
rectus abdominis
inguinal ligament
where do direct inguinal hernias occur?
Hasselbach’s triangle
(inferior epigastric vessel, inguinal ligament, and lateral aspect of rectus abdominis)
space below the inguinal ligament, next to femoral a. and v.
femoral canal
site of femoral hernias
hernias that occur lateral to inferior epigastic a.
indirect
most common type of hernias
indirect
hernias that occur medial to inferior epigastic a.
direct
many times, indirect inguinal hernias will descend through the inguinal canal to the
scrotum
hernias that occur superior to the inguinal ligament
direct and indirect
- innervates scrotum
- passes through inguinal canal to scrotum
ilioinguinal nerve
innervates the cremaster muscle
genitofemoral
hernias more common in women
femoral
present as emergency
hernias inferior to inguinal ligament
femoral
present as emergency due to strangulation of bowel
hernias through femoral canal
femoral
present as emergencies