As for the mandibular postural position, which one is NOT correct? ()
A. It is the mandibular rest position.
B. It is stable and repeatable.
C. It refers to the mandibular position when a person stands or sits in an upright posture, looking straight ahead, and there is no chewing, no swallowing, and no speaking. What’s more, the mandibular teeth do not contact the maxillary teeth.
D. There is a 1-3 mm space between maxillary and mandibular incisors.
E. There is no electrical activity of the mandibular elevating muscles.
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The canine fossa sits on the top of the root apex of the ()
A. the maxillary incisors
B. the maxillary canine
C. the maxillary premolars
D. the maxillary molars
E. the maxillary anterior teeth
At what direction does the infraorbital groove pass through the infraorbital canal.()
A. Forward, interior, and downward
B. Forward, exterior, and downward
C. Forward and downward
D. Backward, exterior, and upward
E. None of the above is true.
Which bone has the most prominent change among the skeletal system? ()
A. The maxilla
B. The mandible
C. The alveolar process
D. The palatine bones
E. None of the above is true.
Which artery is not involved in the abundant blood supply of maxilla? ()
A. The posterior superior alveolar artery
B. The inferior alveolar artery
C. The infraorbital artery
D. The descending palatine artery
E. The sphenopalatine artery
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