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Dental Assisting: Head And Neck Anatomy

Subjects : health-sciences, dentistry

Instructions:

Answer 50 questions in 15 minutes.
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1. What is the smallest tooth in dentition?
Set of arches found farther in the back of the throat
Mandibular central incisors
A bat shaped bone which forms the anterior portion of the skull
Corners of the mouth

2. What are the largest and strongest of the mandibular teeth
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
The mandibular molars
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Of or pertaining to area surrounding naval cavity

3. Function of Geneoglossus?
4/5 cusps/ 3 roots
Primary and permanent
Band of fibrous tissue which attaches muscle to bone
Retracts or depresses the tongue

4. Lamina Dura
Narrow long enamel tuft
Intervating the anterior teeth and the labial gingiva
A line that represents the alveolus bone lining the socket
Responsible for laying down the enamel matrix into place

5. How many cusps/ roots do the maxillary first molars have?
Week 12
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
4/5 cusps/ 3 roots
Located on the inside of the body of the ramus

6. Sulingual Folds
The ridges that run horizontally across the hard palate behind the incisive papilla
Maxillary first molar
Supplies blood to the face and oral cavity
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue

7. Lingual Foramen
The mandibular molars
The internal surface at the center of the mandible
A horseshoe shaped groove that follow the curve of the dental arch
Folds of tissue to the the lingual veins

8. Rami
Two vertical extensions of the mandible
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Tooth emerges from gum tissue and becomes visible
Forming organ takes shape and resembles the shape of a bell

9. Vestibule
An overgrowth of the gingival tissue
Joined at the midline and are often referred to as the median Palatine suture
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
A pocket formed by the soft tissue of cheeks and gingiva

10. Periodontal Ligaments
Formed by the fibroblast cells and secures the tooth in the socket
The largest of the salivary glands which lie just below and in front of the ear
Fleshy elevation under the tongue
Primary and permanent

11. Alveologingival Fiber Groups
Occlusal surface of the posterior tooth
Formed by the fibroblast cells and secures the tooth in the socket
An enclosed area that matures into dentin - cementum and pulp
Aid in attaching the gingiva to the alveolar bone

12. Morphology
Study of the structure and form of the teeth
Largest division of the trigeminal nerve
Curve outward
Tubules that pass through the entire surface of the dentin

13. Histology
Wearing away of the incisal or occlusal surfaces of the tooth
Drains the maxiallary artery and superficial temporal arteries
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
The study of the microscopic structure and functions of tissues

14. What are the 4 extrinsic muscles of the tongue
Aid in attaching the gingiva to the alveolar bone
Compact bone plate of the facial and lingual surfaces
Genioglossus - hyoglossus - styloglossus - palatoglossus
4/5 cusps/ 3 roots

15. Gingival Sulcus
The fixed attachment of a muscle
The space between the unattached gingiva and the tooth
4th week
Supportive fibers that anchor the tooth to the bone

16. Mesial
Short tubules that seem to crossover to the enamel
Quarters of the teeth
A projection that extends off the back of the soft palate
Surface towards the midline

17. Bud stage
Function to resist rotational forces and tilting
Retracts or depresses the tongue
To dissolve
Initiation of the tooth begins

18. How is the TMJ supported and what controls their movement?
Lower arch of the teeth
Excess dryness of the mouth
Ligaments and muscles of mastication
Portion of the root seen in the oral cavity

19. Lingual Vein
Drains the floor of the mouth
2 small raised folds of tissue where the lingual frenum attaches
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
A projection that extends off the back of the soft palate

20. Gingival Hyperplasia
The portion of the tooth that meets the gingiva
Oval depression of temporal bone in condyloid process
An overgrowth of the gingival tissue
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids

21. Xygomatic bones
Extends from the medial corner of the eye to the nasal cavity
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Aid in attaching the gingiva to the alveolar bone
Cheek bones--the most breakable bone in the body

22. What are the 4 taste senses and where are they located?
Supplies blood to the face and oral cavity
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Primitive mouth
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue

23. Ameloblast
Enamel forming cells
Found near the cementoenamel junction
Supportive fibers that anchor the tooth to the bone
Cells develop into different tissues

24. Salivary Glands
Drains the superficial veins of the face and neck into the subclavian vein
2 to 3 pints
Three cusps/ trifurcated
Secrete saliva to assist in process of digestion

25. Ala of the Nose
The outer edge of the nostril
Follows the length of the body of the mandible past the last tooth and up to the ramus
Cells From which connective tissue evolve
Third tooth from the midline

26. Function of Platysma
9 weeks thru birth
A flap of tissue on the on the buccal mucosa
Formed by the uniting of lobes during development of crown
Draws down the mandible and corners of the mouth

27. Maxilla
Teeth after cuspids
The slightly raised line extending down the middle of the hard palate
Largest facial bone with two sections joined at the median suture
Narrow long enamel tuft

28. Dental Sac
Resist rotational forces and hold teeth in inter-proximal contact
An enclosed area that matures into dentin - cementum and pulp
Curve outward
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

29. What is the maxillary cuspid known as?
Healthy gingival tissue with an orange texture
The cornerstone of the mouth
The space between the unattached gingiva and the tooth
A raised white line that runs parallel to where the teeth meet on the buccal mucosa

30. Ligament
Study of prenatal growth and the developing process of an individual
Band of fibrous tissue which attaches bone to bone
The deepest point of the vestibule
Extends from the mucogingival junction to the gingival groove

31. Mamelons
Three bulges on the incisal edge
Band of fibrous tissue which attaches muscle to bone
Small head - low nasal bridge - thin upper lip - small mandible
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface

32. Oblique Ridge
Triangular space in the gingival direction when two adjacent teeth are in contact
Interdental ligament
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Clear fluid secreted by the salivary and mucous glands throughout the mouth

33. Odontoblast
Vertical groove on the midline of the upper lip
Full deep rich sound in nasal cavity
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Cells that form dentin

34. Mesenchyme Tissue
An enclosed area that matures into dentin - cementum and pulp
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Forms a large cavity above the roots of the maxillary molars

35. Labial Mucosa
The inner surface of the lips
Incremental lines around the layers of the enamel matrix
6 months/3years
Excess bone in the middle of the palate

36. What is Ankyloglossia and who can treat it / What is the treatment called?
Portion of the root seen in the oral cavity
A condition where the lower frenum attachment is very short/DDS/frenectomy
4th week
When the surface of the teeth becomes grooved

37. Fetus
Follows the inside of the ramus and the body of the mandible
9 weeks thru birth
Week 12
The area on the crown of the tooth that is nearest the gingival

38. Filiform Papillae
Resulting from an imperfect union where the lobes come together
The fixed attachment of a muscle
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate

39. Function of Digastric
Synovial fluid
Extends from the mucogingival junction to the gingival groove
Lift the hyoid bone and assist in opening the mouth
Dividing point of a multi-rooted tooth

40. Soft Palate
A pocket formed by the soft tissue of cheeks and gingiva
Covers muscle tissue in the posterior portion of the palate
A bat shaped bone which forms the anterior portion of the skull
Substances between cells

41. Labial Commissures
Used to pulverize food
The corners of the mouth where the top and bottom lip meet
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Forms after the completion of the apical foramen

42. Gingival Groove
Tubules that pass through the entire surface of the dentin
Curve outward
The line of demarcation between the attached gingiva and the marginal gingiva
When cells rapidly increase in number

43. Exfoliated
Small raised projections where taste buds are located
Shed from the oral cavity
Indented
The smallest of the salivary glands located on the floor of the mouth which empty into the mouth thru either the ducts of Rivinus or Bartholin

44. How much saliva do the salivary glands produce in 24 hours?
Stained growth rings in dentin
Upper arch of the teeth
Short tubules that seem to crossover to the enamel
2 to 3 pints

45. Anatomical root
Extends from the mucogingival junction to the gingival groove
Radiates from the developmental groove
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Portion covered with cementum

46. Buccal Mucosa
The inner surface of the cheeks
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Narrow long enamel tuft
Short tubules that seem to crossover to the enamel

47. Infraorbital Foramen
Supplies blood to the face and oral cavity
Oval structures that are located on the dorsal surface of the tongue
Opening in the mouth below the orbit on the maxillary bone
Small grooves noted on some teeth

48. If Palate not fused
The development of different tissues
Teeth will not erupt in proper position
The bone that separates the root on a tooth
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar

49. Oblique Fiber Group
Resists intrusive forces that try to push the tooth inwards
Folds of tissue to the the lingual veins
Primitive mouth
The ridges that run horizontally across the hard palate behind the incisive papilla

50. Peg lateral
1500 millimeters
Peg shaped crown with a smooth surface
Middle two teeth in the mouth
Trigeminal nerve--because it ennervates the maxilla and the mandible

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Dental Assisting: Head And Neck Anatomy

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