9/23/12 Flashcards
Which 2 bacteria secrete toxins that inactivate the 60S ribosomal subunit?
Shigella and EHEC
The neurons of the CNS, neurohypophysis, retina, pineal gland, preganglionic autonomic fibers, astrocytes, ependymal cells, and choroid plexus are all derived from what embryonic structure?
Neurectoderm
What is the only major vestige of the notochord in humans?
nucleus pulposus of the intervertebral disks
What conditions are associated w/ Cheyne-Stokes breathing?
cardiac and neurologic disease (esp. advanced CHF)
What is the pattern Cheyne-Stokes breathing? What drives this pattern?
Increasing/decreseasing tidal volumes followed by periods of apnea. Delayed response to PaCO2.
How does ezetimibe lower LDL levels?
inhibits intestinal absorption of cholesterol
What dyslipidemia is associated with an increased risk of pancreatitis?
hyperTRIGLYCERIDEmia
What is the most common type of lung cancer in women and non-smokers?
adenocarcinoma
Which type of lung cancer is associated with Cushing’s, SIADH, and Lambert-Eaton syndrome, again?
small cell carcinoma
Where does squamous cell carcinoma of the lung usually arise?
On larger bronchi at areas of squamous metaplasia.
Which kind of lung tumor is described histologically: Large polygonal cells that form solid sheets or nests. Usu. located peripherally.
large cell carc
How do right-sided colon cancers usu. present clinically?
intestinal obstruction
How do left-sided colon cancers usu. present?
Fe-def anemia; anorexia, wt. loss, and/or malaise
