9/16/12 b Flashcards
What artery travels with the radial nerve through the spiral groove?
DEEP brachial artery
What artery is likely to be damaged in a supracondylar fracture?
brachial artery
What sort of maneuvers would increase the systolic murmur that may be heard in hypertrophic cardiomyopathy?
those that decrease venous return to the heart, such as Valsalva.
What parasympathetic innervation does the facial nerve provide?
lacrimal, submandibular, and sublingual salivary
What is an essential activator of Carbamoyl Phosphate synthetase I?
N-acetylglutamate
What skeletal abnormalities come w/ Friedreich’s ataxia?
kyphoscoliosis and pes cavus
In Friedreich’s ataxia, degeneration of what neural structures causes gait ataxia?
spinocerebellar tracts (ascending & descending)
I Friedreich’s ataxia, degeneration of what neural structures causes loss of position and vibration sense?
dorsal columns AND dorsal root ganglia
What endocrine disorder develops in about 10% of pts w/ Friedreich’s ataxia?
DM
What is the main mechanism of action of streptokinase?
activates plasminogen, which cleaves fibrin
What are 2 possible side effects of streptokinase?
hemorrhage and hypersensitivity
What is the standard triple therapy for H. pylori infection?
1 week: PPI, clarithromycin, amoxacillin
What bacteria is ciproifloxacin most effective against?
Gram (-) aerobic rods such as P. aeruginosa and Legionella
What is the mechanism of angioedema - swelling of face, tongue, larynx, etc - in some cases of ACE-I therapy?
Bradykinin accumulation
What is vascular medial calcinosis? Effects?
medial calcification of muscular arteries in older people; no Sx
What is the most common cause of aortic stenosis?
degenerative (senile) calcification
What is the effect of aortic stenosis on the carotid pulse?
Pulsus parvus et tardus
reflects diamond-shaped murmur
What sort of valvular problem does cystic medial necrosis of the aorta predispose to?
aortic regurgitation following aortic dissection
Hemophilia B is d/t a deficiency of what clotting factor?
IX
What is Laplace’s law? (Relates distending pressure of a sphere to radius.)
P=2T/r
where T = surface tension
According to Laplace’s law, which kind of a sphere is more likely to collapse, one with a large radius or one with a small radius?
small
What is the most common cause of nephrotic syndrome in adults? It is associated with a “spike-and-dome” pattern on EM.
Membranous glomerulopathy
What GI disease causes alternating diarrhea and constipation and possibly fistulas?
Crohn’s disease
