Intrapulpal techniques require all of the following, except
A) endodontically prepared tooth
B) use of any local anesthetic is equally effective
C) use of pressure anesthesia created by the volume of solution
D) wide opening through the crown to permit access to the large volume of anesthetic required for success
D
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Match each of the components of the reflex arc to its function
The receptor _____ The sensory neuron ______ The spinal cord ______ The motor neuron ______ The effector ______ a. Carries the reaction signal from the spinal cord to the effector. b. Carries the impulse to the spinal cord. c. The structure or tissue that will react to the stimulus. d. Sends signals to the brain for further analysis and/or sends a reaction signal back to the motor neuron. e. A nerve ending such as a nociceptor.
When using a strut and buttress tension system, firefighters must ensure all parts have a safety margin that is:
A. the same as the weight being secured. B. in excess of the weight being secured. C. within 5 pounds (2.26 kg) of the weight being secured. D. within 10 pounds (4.53 kg) of the weight being secured.