passmed Flashcards
Laterally to medially, what contents can be found in the femoral trianlge
femoral NERVE, femoral ARTERY, femoral VEIN, EMPTY space, LYMPHATICS
phase 1 of gastric secretion
cephalic phase
preparation for food
Vagal cholinergic stimulation causing secretion of HCL and gastrin release from G cells
phase 2 of gastric secretion
gastric phase
60% acid produced
Stomach distension/low H+/peptides causes Gastrin release
phase 3 of gastric secretion
intestinal phase
High acidity/distension/hypertonic solutions in the duodenum inhibits gastric acid secretion via enterogastrones (CCK, secretin) and neural reflexes
factors that increase gastric acid production
Vagal nerve stimulation
Gastrin release
Histamine release (indirectly following gastrin release) from enterchromaffin like cells
factors that decrease gastric acid production
Somatostatin (inhibits histamine release)
Cholecystokinin
Secretin
source of gastrin
g cells in the antrum of the stomach
effect of gastrin
Increase HCL, pepsinogen and IF secretion, increases gastric motility
source of CCK
I cells in the duodenum
effect of CCK
Increases secretion of enzyme-rich fluid from pancreas
contraction of gallbladder and relaxation of sphincter of Oddi
decreases gastric emptying
production of secretin
S cells of duodenum
when does a baby normally start producing surfactant
week 22
mechanism of action of dipyridamole
combination anti-platelet drug
non-specific phosphodiesterase inhibitor and decreases cellular uptake of adenosine
mechanism of action of Ticagrelor
direct-acting P2Y12-receptor antagonist
reversibly and noncompetitively to the P2Y12 receptor at a site distinct from that of the endogenous agonist adenosine diphosphate (ADP)
classical symptoms of anaemia
Headaches, shortness of breath and palpitations