The vertical groove in the upper lip is the ________

A) dorsum
B) nasolabial fold
C) ala
D) philtrum


D
Explanation: A) The dorsum is the vertical ridge of the nose.
B) The nasolabial fold runs obliquely from the nose to the corner of the mouth.
C) The ala is the flared cartilage on one nostril.
D) Correct!

Health & Biomechanics

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