CHAPTER 1- ANATOMY OF OROFACIAL
STRUCTURES EXAM 2025/2026
QUESTIONS AND ANSWERS
Where does the oral cavity begin and end? - ANS Begins and the lips and cheeks and ends at
the oral pharynx
What to systems do the oral cavity introduce? - ANS Beginning of the digestive system
At the posterior forms a common pathway with the respiratory system
Where do the tonsillar pillars lie? - ANS Between the anterior and posterior tonsillar pillars
The oral cavity is divided into two parts: - ANS vestibule and oral cavity proper
Vestibule - ANS Space between the teeth and the inner mucosal lining of the lips and cheeks
Where does an edentulous person's vestibule end? - ANS At the alveolar ridge
Oral Cavity Proper - ANS Area surrounded/contained by the teeth back to the area of the
palatine tonsils
Includes floor of the mouth and hard and soft palate
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, Vermillion zone - ANS
Vermillion Border - ANS area where the pink-red lip tissue meets the facial skin
lip line
Ala of the nose - ANS The wing of the nose or outer edge of the nostril
Nares - ANS nostrils
Labial commissure - ANS corners of the mouth
Philitrum - ANS vertical groove on the middle of the upper lip.
Cupids bow
Zygomaticoalveolar crest - ANS ridge of bone at the upper posterior vestibular space;
beginning of the anterior part of the zygomatic arch (cheekbone)
Mucobuccal/mucolabial fold - ANS Point at which the mucosa of the lips and cheeks turns to
go towards the gingival tissue
alveolar mucosa - ANS Mucosa lying against the alveolar bone that is loosely attached and
and moveable
What color is alveolar mucosa and why? - ANS Reddish because of the presence of blood
vessels underneath the thin mucosa
mucogingival junction - ANS Distinct line of color change in the tissue where the alveolar
membrane meets with attached gingivae
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STRUCTURES EXAM 2025/2026
QUESTIONS AND ANSWERS
Where does the oral cavity begin and end? - ANS Begins and the lips and cheeks and ends at
the oral pharynx
What to systems do the oral cavity introduce? - ANS Beginning of the digestive system
At the posterior forms a common pathway with the respiratory system
Where do the tonsillar pillars lie? - ANS Between the anterior and posterior tonsillar pillars
The oral cavity is divided into two parts: - ANS vestibule and oral cavity proper
Vestibule - ANS Space between the teeth and the inner mucosal lining of the lips and cheeks
Where does an edentulous person's vestibule end? - ANS At the alveolar ridge
Oral Cavity Proper - ANS Area surrounded/contained by the teeth back to the area of the
palatine tonsils
Includes floor of the mouth and hard and soft palate
1 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
, Vermillion zone - ANS
Vermillion Border - ANS area where the pink-red lip tissue meets the facial skin
lip line
Ala of the nose - ANS The wing of the nose or outer edge of the nostril
Nares - ANS nostrils
Labial commissure - ANS corners of the mouth
Philitrum - ANS vertical groove on the middle of the upper lip.
Cupids bow
Zygomaticoalveolar crest - ANS ridge of bone at the upper posterior vestibular space;
beginning of the anterior part of the zygomatic arch (cheekbone)
Mucobuccal/mucolabial fold - ANS Point at which the mucosa of the lips and cheeks turns to
go towards the gingival tissue
alveolar mucosa - ANS Mucosa lying against the alveolar bone that is loosely attached and
and moveable
What color is alveolar mucosa and why? - ANS Reddish because of the presence of blood
vessels underneath the thin mucosa
mucogingival junction - ANS Distinct line of color change in the tissue where the alveolar
membrane meets with attached gingivae
2 | Page @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED
