510.If a patient suddenly becomes unconscious during treatment, the practitioner should immediately assess the patient's

A. airway and pulse.
B. airway and blood pressure.
C. pulse and blood pressure.
D. color and pupils.

509. A 2-day-old developing plaque consists primarily of

A. Treponema species.
B. Bacteroides species.
C. filamentous organisms.
D. gram-positive cocci and rods.
E. a structureless, non-mineralized pellicle.

508. A major sensory innervation of the temporomandibular joint is derived from the

1. great auricular nerve.
2. auriculotemporal nerve.
3. inferior alveolar nerve.
4. temporal branches of the facial nerve.