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.
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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
As for the enamel, the correct choice is ()
A. The enamel is highly-calcificated and is the hardest tissue in the tooth tissues
B. The enamel is yellow-colored
C. The enamel covers the crown
D. The enamel covers the root
E. None of the above is true
Among the dental tissues, the hard tissue that covers the root is ()
A. Cementum
B. Dentin
C. Enamel
D. Pulp
E. None of the above is true.
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