wk 1 9 anatomy of abdominal pain Flashcards
whats foud in the foregut
oeseophagus to mid-duodenim
liver and gall lbladder
spleen
0.5 of pancreas
midgut
mid-duodenm to proximal 2/3rd of transvers colon
hindgut
distal 1/3rd of transverse colon to proximal 1/2 of anal canal
other than quadrants, how else can the abdominal organs be organised
9 sections, through splitting from mid-claviluar plane which a subcostal and transtubecular plane
5 layer of anterolateral abdominal wall
rectus abdominus
external oblqiue
internal obliqu
transversus abddominus parietal peritoneum
define guarding,associated disease
muscle contraction, to protect organs
peritonitis
2 layers of peritoneum
parietal - body wall
visceral - organ `
3 sections of peritoneum, what differs between each
intraperitoneal - almost completely covered in visceral p,, minimallly mobile
organs with a mesentery - (still in intraperitoneal area, double layer of peritoneum, small intestines, v mobile
retroperitoneal - only peritoneum on anterior surface, stuck in place, pancreas
what is omentum
double layer of peritoneum that passes from stomach to adjacent organs
function of omentum in relation to pathology
will move to source and cover in attempt to reduce spread
what does the greater omentum attach to
greater curvature of stomach to transverse colon
4layers
what does the lesser omentum attach to, what differs between greater and large omentum
lesser curvature fo stomach and duodenum to liver
has a free edge
name for window into lesser sec
omental foramen
2 ligaments found in lesser omentum
hepogastric ligament hepatoduodenal ligament (free edge)
another name fro recto-uterine pouch
pouch of douglas
ascites
collection of fluid in peritoneal cavity
procedure for draning fluid from peritoneal cavity
paracentesis
2 diseases most commonly cause ascites
cirrosis
portal hypertension
how do the pouches of the peritoneum differ between m and f
m - only 1 - rectovesical
f- 2 - vesico-uterine, recto-uterine pouch
what needs to be avoided in abdominocentesis
right inferior epigastric artery
where does the needle need to be placed paracentesis
lateral to rectus sheath
nerves affecting organs
visceral afferents
enteric nervous
autonomic - sympa and para
what carries nerve fibres to organs
periarterial plexus
which organ differs from the rule with sympa nerves and associated organ, how so
adrenal gland
doesnt synapse at prevertebral ganglia
what else suppplies para to the lower organs (when vagus stops)
pelvic sphlanic nerves (s,2,3,4)
pain associated with midgut
pain in umbical region
2 nerves which make up L1 anterior ramus
iliohyogastric and iliolinginual nerve
T12 anterior ramus nerve is
subcostal nerve
associated area od pain for appendicitis
T8-T10, felt at umbilicus, dull aching pain
changes due to stop irritating visceral, and affects parietal becoming v sharp at the iliac fossa
