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Orofacial Anatomy Chapter 1 Questions with Detailed
Verified Answers
Nasolabial groove (or sulcus) Ans: ✓ ✓ ✓ a groove that separates the nose and lips from the
cheeks
Labiomental groove Ans: ✓ ✓ ✓ a groove that separates the lower lip from the chin
Ala Ans: ✓ ✓ ✓ the portion of the nose that flares out on either side of the nostril
Anterior boundary of the oral cavity Ans: ✓ ✓ ✓ Lips
Posterior boundary of the oral cavity Ans: ✓ ✓ ✓ Palatine tonsils
Lateral boundary of the oral cavity Ans: ✓ ✓ ✓ Cheeks
Superior boundary of the oral cavity Ans: ✓ ✓ ✓ Roof of the mouth (palate)
Inferior boundary of the oral cavity Ans: ✓ ✓ ✓ Floor of the mouth
Pharynx Ans: ✓ ✓ ✓ the pathway that air travels from the nose or mouth on its way to the lungs.
A shared pathway between digestive and resperitory systems
What are the three branches of the pharynx? Ans: ✓ ✓ ✓ -Nasopharynx
-Oropharynx
-Laryngopharynx
Nasopharynx Ans: ✓ ✓ ✓ the upper portion of the pharynx located behind the nasal cavity
Oropharynx Ans: ✓ ✓ ✓ the middle portion of the pharynx located behind the oral cavity
Laryngopharynx Ans: ✓ ✓ ✓ extends from the oropharynx to the epiglottis
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Epiglottis Ans: ✓ ✓ ✓ a flap of cartilage that covers the larynx while swallowing to prevent food or
liquid from entering.
Palatine tonsils Ans: ✓ ✓ ✓ located between the anterior and posterior tonsillar pillar on the
lateral borders of the oropharynx
Palatoglossal muscle Ans: ✓ ✓ ✓ located in the anterior tonsillar pillar
Palatopharyngeal muscle Ans: ✓ ✓ ✓ located in the posterior tonsillar pillar
Lingual tonsils Ans: ✓ ✓ ✓ located on the base of the tongue, posterior 1/3
Pharyngeal tonsils (or adenoids) Ans: ✓ ✓ ✓ located superior to the soft palate
Waldeyer's Ring Ans: ✓ ✓ ✓ The three types of tonsils found in the oral cavity
Fauces Ans: ✓ ✓ ✓ the space located between the palatine tonsils, the soft palate, and the tongue
Uvula Ans: ✓ ✓ ✓ The most posterior portion of the soft palate
musculus uvulae muscle Ans: ✓ ✓ ✓ originates on the posterior nasal spine and inserts into the
uvula
Vestibule Ans: ✓ ✓ ✓ The space that exists between the teeth and the cheek and the teeth and
the lips
Labial vestibule Ans: ✓ ✓ ✓ the space located between the front teeth and the lips
Buccal vestibule Ans: ✓ ✓ ✓ the space located between the back teeth and the cheeks
Mucolabial fold Ans: ✓ ✓ ✓ the deepest point of the labial vestibule
Mucobuccal fold Ans: ✓ ✓ ✓ the deepest point of the buccal vestibule
Vermillion border Ans: ✓ ✓ ✓ Marks the junction between the skin and the face and the mucosa
of the lip
Vermillion zone Ans: ✓ ✓ ✓ colored portion of the lips (where you put lipstick)
Philtrum Ans: ✓ ✓ ✓ an identation found in the center of the upper lip
Labial commissure Ans: ✓ ✓ ✓ Corner of the mouth where the upper and lower lip meet
© Get it right 2025 Getaway - Stuvia US All rights reserved
Orofacial Anatomy Chapter 1 Questions with Detailed
Verified Answers
Nasolabial groove (or sulcus) Ans: ✓ ✓ ✓ a groove that separates the nose and lips from the
cheeks
Labiomental groove Ans: ✓ ✓ ✓ a groove that separates the lower lip from the chin
Ala Ans: ✓ ✓ ✓ the portion of the nose that flares out on either side of the nostril
Anterior boundary of the oral cavity Ans: ✓ ✓ ✓ Lips
Posterior boundary of the oral cavity Ans: ✓ ✓ ✓ Palatine tonsils
Lateral boundary of the oral cavity Ans: ✓ ✓ ✓ Cheeks
Superior boundary of the oral cavity Ans: ✓ ✓ ✓ Roof of the mouth (palate)
Inferior boundary of the oral cavity Ans: ✓ ✓ ✓ Floor of the mouth
Pharynx Ans: ✓ ✓ ✓ the pathway that air travels from the nose or mouth on its way to the lungs.
A shared pathway between digestive and resperitory systems
What are the three branches of the pharynx? Ans: ✓ ✓ ✓ -Nasopharynx
-Oropharynx
-Laryngopharynx
Nasopharynx Ans: ✓ ✓ ✓ the upper portion of the pharynx located behind the nasal cavity
Oropharynx Ans: ✓ ✓ ✓ the middle portion of the pharynx located behind the oral cavity
Laryngopharynx Ans: ✓ ✓ ✓ extends from the oropharynx to the epiglottis
© Get it right 2025 Getaway - Stuvia US All rights reserved
, Click here for more: Scholars nexus
Epiglottis Ans: ✓ ✓ ✓ a flap of cartilage that covers the larynx while swallowing to prevent food or
liquid from entering.
Palatine tonsils Ans: ✓ ✓ ✓ located between the anterior and posterior tonsillar pillar on the
lateral borders of the oropharynx
Palatoglossal muscle Ans: ✓ ✓ ✓ located in the anterior tonsillar pillar
Palatopharyngeal muscle Ans: ✓ ✓ ✓ located in the posterior tonsillar pillar
Lingual tonsils Ans: ✓ ✓ ✓ located on the base of the tongue, posterior 1/3
Pharyngeal tonsils (or adenoids) Ans: ✓ ✓ ✓ located superior to the soft palate
Waldeyer's Ring Ans: ✓ ✓ ✓ The three types of tonsils found in the oral cavity
Fauces Ans: ✓ ✓ ✓ the space located between the palatine tonsils, the soft palate, and the tongue
Uvula Ans: ✓ ✓ ✓ The most posterior portion of the soft palate
musculus uvulae muscle Ans: ✓ ✓ ✓ originates on the posterior nasal spine and inserts into the
uvula
Vestibule Ans: ✓ ✓ ✓ The space that exists between the teeth and the cheek and the teeth and
the lips
Labial vestibule Ans: ✓ ✓ ✓ the space located between the front teeth and the lips
Buccal vestibule Ans: ✓ ✓ ✓ the space located between the back teeth and the cheeks
Mucolabial fold Ans: ✓ ✓ ✓ the deepest point of the labial vestibule
Mucobuccal fold Ans: ✓ ✓ ✓ the deepest point of the buccal vestibule
Vermillion border Ans: ✓ ✓ ✓ Marks the junction between the skin and the face and the mucosa
of the lip
Vermillion zone Ans: ✓ ✓ ✓ colored portion of the lips (where you put lipstick)
Philtrum Ans: ✓ ✓ ✓ an identation found in the center of the upper lip
Labial commissure Ans: ✓ ✓ ✓ Corner of the mouth where the upper and lower lip meet
© Get it right 2025 Getaway - Stuvia US All rights reserved
