Which of the following are components in the chain of infection?
A. Direct contact, indirect contact, airborne, oral route, and insects and pests
B. Infectious agent, reservoir, portal of exit from the reservoir, mode of transmission, and portal of entry into the susceptible host
C. Aerobic, anaerobic, saprophytes, prions, and protists
D. Endogenous, exogenous, cell invasion, and allergic reaction
E. None of the above
Answer: B
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The muscles of mastication (jaw muscles) are innervated by the:
a. Trigeminal nerve (V) b. Trochlear nerve (IV) c. Abducens nerve (VI) d. Facial nerve (VII)
All of the following are key components of hematopoietic differentiation except:
a. The formation of mature blood components with a finite life span b. The differentiation of blood components when exposed to different cytokines c. The commitment to produce blood cells only d. The activation of programmed cell death