How can a post and core and retention pin be differentiated on a dental radiograph?
What will be an ideal response?
A post penetrates a pulp root canal while a retention pin penetrates dentin only. Post and core restorations are also significantly large in size compared to retention pins.
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The termination of the nerve axon on the skeletal muscle fiber is called the
a. neuromuscular junction. b. adrenergic receptor. c. skeletal-muscular junction. d. cholinergic receptor.
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Characteristics of depolarizing neuromuscular blocking agents include which of the following? 1. Cannot be reversed 2. Effects last 60 to 90 seconds 3. Shorter acting than nondepolarizing agents 4. Cause fasciculation 5. Cause total paralysis in 60 to 90
a. 1, 3, and 5 only b. 2, 3, and 4 only c. 1, 3, 4, and 5 only d. 1, 2, 3, 4, and 5
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