CHAPTER 10 - Landmarks of the face and oral cavity Flashcards
Ala of the nose
winglike tip on the outer side of each nostril
philtrum
rectangular area between the two ridges running from under the nose to the midline of the lip
tragus
cartilaginous projection on the external opening of ear
root
bridge of the nose
anterior naris
nostril
mental protuberance
chin
angle of the mandible
lower posterior of the ramus
zygomatic arch
prominence of the cheek
lips are medically called what
labia
vermillion border
darker border of color around the lips
labial comissure
corner of the mouth where upper and lower lips join
nasolabial sulcus
(smile lines) groove that extends upward between labial of commissure and nasal ala
changes in the vermillion border may be caused by what?
cancer
angular cheilosis
inflammation or cracking at the corners of mouth
caused by vitamin b12 deficiency
the oral cavity is lined by what?
mucus membrane tissue
How many areas does the oral cavity have?
two
what are the two areas of the oral cavity?
vestibule
oral cavity proper
where is the vestibule?
space between teeth and inner mucosal lining of lips and cheeks (space between lips and cheeks)
where is the oral cavity proper?
space on the tongue side within the upper and lower dental arches (space in the middle between tongue and soft palate)
mucobuccal fold
The base of each vestibule, where the buccal mucosa meets the alveolar mucosa
(where the bone and the cheek come together.)
linea alba
white ridge of raised tissue that extends horizontally where the maxillary and mandibular teeth come together
frenum
narrow band of tissue that connects two structures
the lip and gingiva is connected by what?
labial frenulum
buccal frenulum
connects the cheeks