For each of the descriptions of immune mechanisms in questions 1-4, select the immune mechanism (A-D) that correctly matches it
A. Type I interferons (IFN-?, IFN-?)
B. CD8+ cytolytic T lymphocyte
C. Antibody
D. Natural killer cell
Adaptive immunity mechanism for eradicating established viral infection
ANS: B. Once viruses have infected cells, they produce cytoplasmic proteins that are processed and presented by the class I MHC pathway. CD8+ cytotoxic T lymphocytes recognize viral peptide-class I MHC complexes on the surface of infected cells and kill these cells. The killing mechanism leads to apoptosis, which ensures degradation of viral DNA as well as host cell DNA.
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A) edometriosis B) preeclampsia C) spontaneous abortion D) uterine prolapse
Which of the following regions does not communicate with the pterygopalatine fossa via the indicated route?
A) infratemporal fossa via pterygomaxillary fissure B) nasal cavity via the sphenopalatine foramen C) orbit via the inferior orbital fissure D) middle cranial fossa via foramen rotundum E) sphenoid sinus via the pterygoid canal
According to the DEA, a Schedule II controlled substance prescription for a terminally ill patient can be partially filled for up to
A) 14 days B) 30 days C) 60 days D) 6 months
In the term ischemia, the suffix -emia means:
A) process. B) blood condition. C) condition of. D) formation.