gi ducas Flashcards
intrinsic muscles of the tongue - which cranial nerve
hypoglossal CNXII
Extrinsic muscles of the tongue
CNXII except palatoglossus - CNX
taste anterior 2/3
- CNV3 - mandibular branch
taste posterior 1/3
CNVII - chorda tympani branch
two layers of the oesophagus
outer longitudinal layer, inner circular layer
what is peristalsis
a series of wave like muscle contractions that move food through the digestive tract
two oesophageal sphincters
UOS - cricopharyngeus
LOS- functional found at the GO junction
what does the diaphragm do
separates the thorax from the abdominal cavity
what is aponeurosis
big flattened tendon
what is the caval hiatus
the level at whic IVC passes the diaphragm
level of caval hiatus
T8
level of oesophageal hiatus
T10
level of aortic hiatus
T12
where will ascites drain in men
rectovisceral pouch
role of parietal cells
secrete HCL and intrinsic factor for B12 absorption
role of G cells
secretes gastrin and stimulates parietal cells to secrete HCl
role of chief cells
secrete pepsin - proteolytic
branches of abdominal aorta
coeliac axis, superior mesenteric, inferior mesenteric
level of coeliac axis
T12
level of superior mesenteric
L1
level of inferior mesenteric
L3
drainage of the inferior mesenteric vein
splenic vein then the HPV
peptic ulcer risk factors
middle aged man, NSAIDs, H pylori, smoker, silinger-ellison syndrome
what is dyspepsia
epigastric discomfort, nausea and vomiting, bloating and burping,
what is dyspepsia seen
peptic ulcer disease, GORD and gastric cancer
epigastric pain worsened by eating, eased by antacids and lying flat, rupture will present as haematemesis and associated with gastric malignancy
gastric ulcer
epigastric pain relieved by eating, may wake the patient at night, rupture will present as rectal bleeding or melaena
duodenal ulcer
when to test for H pylori
after one month of uncomplicated dyspepsia with no relief from weight loss and antacids
management of ruptured peptic ulcer
ABCDE
RLQ pain, diarrhoea, weight loss, mouth ulcers, perianal disease
crohns
examples of perianal disease
sinuses, fissures, skin tags, abscesses
diarrhoea with blood and mucus, lower abdominal pain, faecal urgency, tenesmus, night rising, PR blood on examination
UC
pathology of crohns
granulomas, crypitis and crypt abscesses, thicken of bowel wall and fat wrapping stricture, deep fissuring ulceration and cobblestoning of mucosa
pathology of UC
no granolomas, cryptitis and crypt absecess, brances and irregular crypts, plasma cells at the bottom of cryots, superficial ulceration - pseudopolyps
what are crypts
the glands found in the lining of intestines and increase surface area of intestines for the absorption of water and electrolytes
complications of crohns
malabsoption, gallstones, fistulas, anal disease, bowel obstruction, perforation