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Dental Assisting: Head And Neck Anatomy

Subjects : health-sciences, dentistry

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Answer 50 questions in 15 minutes.
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1. Dentoperiosteal Fiber Groups
Excess dryness of the mouth
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Supportive fibers that anchor the tooth to the bone
The inner surface of the cheeks

2. Free Gingiva
The portion of the tooth that meets the gingiva
Triferacated
Calcified masses of dentin
A horseshoe shaped bone lying at the base of the tongue--all the muscles of the tongue and the floor of the mouth attach to this bone

3. Caruncle
Divides the crown and the root
Two
Cells that form cementum
Fleshy elevation under the tongue

4. Cervical line
Divides the crown and the root
Constricts the nasopharyngeal passage and elevates the larynx
Teeth will not erupt in proper position
Oval depression of temporal bone in condyloid process

5. Ectoderm
Raised vertical folds of tissue on the lateral border of the tongue
A dense tissue covered with mucous membrane that can withstand chewing
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue

6. Dentinal Fluid
Joined at the midline and are often referred to as the median Palatine suture
Tissue fluid surrounding the cell membrane of the odontoblast
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Developmental segment of a tooth

7. Occlusion third
Occlusal surface of the posterior tooth
Acts as anchors between the alveolar bone and the tooth
(free gingiva) surrounds the teeth
The inner surface of the cheeks

8. Mandible Arch
The development of different forms
Study of the structure and form of the teeth
The ridges that run horizontally across the hard palate behind the incisive papilla
Lower arch of the teeth

9. Common Carotid
No bicuspids/ no 3rd molars
Digstric - Mylohyoid - stylohyoid - geniohyoid
A shallow v-shaped depression located below the bottom of the nose and above the lips
Arteries supplying blood to most of the head and the neck

10. Mamelons
Three bulges on the incisal edge
Narrow long enamel tuft
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Forming organ takes shape and resembles the shape of a bell

11. Maxillary Nerve Branch
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
A horseshoe shaped groove that follow the curve of the dental arch
Contains six branches that supply blood to the pharynx muscles - soft palate tonsils - the posterior of the tongue - sub mandibular gland - muscles of the face - nasal septom - nose and the eyelids
Occlusal surface of the posterior tooth

12. Labial
Incremental lines around the layers of the enamel matrix
A flap of tissue on the on the buccal mucosa
Aid in attaching the gingiva to the alveolar bone
Outside surface Which is towards the lips

13. Occlusal
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Enamel forming cells
Pulverizing or chewing surface

14. Stomedeum
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Primitive mouth
Demonstrates a disturbance in the body metabolism
Trigeminal nerve--because it ennervates the maxilla and the mandible

15. Interradical Fiber Group
Small dark brushes
Found only in multi-rooted teeth and resists rotational forces
12 years
Small grooves noted on some teeth

16. Palatine Rugae
Inside surface Which is towards the tongue - on anterior teeth
The ridges that run horizontally across the hard palate behind the incisive papilla
Cheek bones--the most breakable bone in the body
Covers muscle tissue in the posterior portion of the palate

17. Lingual Nerve Branch
Intervates the floor of the mouth the ventral side of the tongue taste buds on the anterior two thirds of the tongue and the lingual gingiva
Middle line of the teeth
Aid in attaching the gingiva to the alveolar bone
Allow flexibility during mastication - speech

18. Circumvallate Papillae
Elevates the posterior portion of the tongue and narrows the fauces
A junction or center of veins that directly or indirectly drain a vast area
Indented
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10

19. Peg lateral
Cluster of tissue that manufactures and secrets fluid
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Peg shaped crown with a smooth surface
An overgrowth of the gingival tissue

20. Pit
When the dentin is exposed
Place where the groove comes together or fissures cross
To dissolve
The mandibular molars

21. Function of Trapezius
Moves the head backward and laterally
Two
Band of fibrous tissue which attaches bone to bone
A condition where the lower frenum attachment is very short/DDS/frenectomy

22. Styloid Process
Sharp projection on the under surface of the temporal bone
Drains the floor of the mouth
Second teeth next to central incisors
Anterior to the ethmoid bone and part of the orbit (corners of the eye)

23. Primary palate
Inside of the maxillary teeth
Allow flexibility during mastication - speech
Separates the developing oral cavities from the nasal cavities
Opening in the mouth below the orbit on the maxillary bone

24. Facial Artery
Vertical groove on the midline of the upper lip
Draws down the mandible and corners of the mouth
Contains six branches that supply blood to the pharynx muscles - soft palate tonsils - the posterior of the tongue - sub mandibular gland - muscles of the face - nasal septom - nose and the eyelids
Dividing point of a multi-rooted tooth

25. Xygote
Week 12
Developmental segment of a tooth
Conception thru the first two weeks
6 months/3years

26. External Auditory Meatus
A projection that extends off the back of the soft palate
Opening for the ear
Quarters of the teeth
Inner portion of the enamel rod

27. Palantine Tonsils
Buccal - lingual - and inferior alveolar
The development of different cells
Trigeminal - facial - glossopharyngeal - hypoglossal
Located in a depressed area between the pillars

28. Vermilion Border
Natural teeth in position
Portion covered with cementum
Portion of the lips where the skin meets the vermilion zone
Small dark brushes

29. Dental Sac
Triangular space in the gingival direction when two adjacent teeth are in contact
Greater - lesser - naso palatine nerves
An enclosed area that matures into dentin - cementum and pulp
Tissue covering the alveolar processes

30. Fetus
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Platysma - trapezius - sternocleidomastoid
9 weeks thru birth
A line that represents the alveolus bone lining the socket

31. Fossa
Inside surface Which is towards the tongue - on anterior teeth
Rounded depression on a tooth
The largest of the salivary glands which lie just below and in front of the ear
Resulting from an imperfect union where the lobes come together

32. Uvula
Natural teeth in position
Middle line of the teeth
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
A projection that extends off the back of the soft palate

33. Function of Hyoglossus
Occurs in unusual ways and distorted crowns may appear
Depresses the tongue
Assist in the movement and functioning of the tongue
Covers muscle tissue in the posterior portion of the palate

34. Fimbriated Folds
Folds of tissue to the the lingual veins
The layer of dentin that surrounds the pulp
Enamel is thinner - pulp chamber is smaller -
Two vertical extensions of the mandible

35. Hard Palate
Appears to be loosely attached - covering the alveolar bone.
Chewing and swallowing food
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth

36. Articular Disc
Forms the remaining 2/3 of the hard and soft palate uvula
When the tissue becomes inflamed
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
Calcium salts are deposited into formed tooth

37. Facial development
Supportive fibers that anchor the tooth to the bone
4th week
The mandibular first premolar
A period of both primary teeth and permeant teeth are in the dentition

38. Submandibular Glands

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39. Attached Gingiva
Natural teeth in position
Place where the groove comes together or fissures cross
Extends from the mucogingival junction to the gingival groove
The crown of the tooth that is nearest the incisal edge near the anterior tooth

40. Vestibule Fornix
Radiates from the developmental groove
Small dark brushes
Assists in elevating the chin
The deepest point of the vestibule

41. Ameloblast
Set of arches found farther in the back of the throat
The internal surface at the center of the mandible
Enamel forming cells
Drains the floor of the mouth

42. Intercellular Substances
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Outside surface Which is towards the lips
Substances between cells
Incremental line indicating trauma of birth

43. Cuspid
Third tooth from the midline
Where the ramus meets the body of the mandible on the outside border
Covering over the enamel that is left over from the epithelium ameloblasts
Largest facial bone with two sections joined at the median suture

44. How many cusps does the second bicuspid have?
A projection that extends off the back of the soft palate
Resist rotational forces and hold teeth in inter-proximal contact
Depresses the tongue
Two

45. Labial Mucosa
The inner surface of the lips
Formed by the uniting of lobes during development of crown
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Study of prenatal growth and the developing process of an individual

46. Cyto differentiation
12 years
The development of different cells
Radiates from the developmental groove
10 days

47. Mesoderm
Forms into dentin - cementum and pulp of the teeth
Middle line of the teeth
Pointed elongations of the pulp
An overgrowth of the gingival tissue

48. Marginal Ridges
An extension of an unattached gingiva and the tooth
Elevated are of enamel that forms the Mesial and distal borders
Pointed or rounded mounds on the crown of the tooth
Moves the head backward and laterally

49. Function of Sternocleidomastoid
Palatoglossus - palatopharyngeal
Located on the inside of the body of the ramus
Assists in elevating the chin
Calcium salts are deposited into formed tooth

50. Gingival Sulcus
Two weeks thru 8th week
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Canal or passage for fluid
The space between the unattached gingiva and the tooth

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Dental Assisting: Head And Neck Anatomy

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