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Dental Assisting: Head And Neck Anatomy

Subjects : health-sciences, dentistry

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. Which molar is the wisdom tooth
Place where the groove comes together or fissures cross
Forms the bulk of the tooth
Used to pulverize food
Maxillary third molar

2. Convects
Cells that form dentin
Fleshy elevation under the tongue
Curve outward
32

3. Muscle Insertion
Primitive mouth
Portion of the lips where the skin meets the vermilion zone
The moveable attachment of the muscle
The mandibular first premolar

4. Mastoid process
Bone that surrounds the root of the tooth
Set of arches found farther in the back of the throat
Bony projection found on the bottom border of the temporal bone
Follows the inside of the ramus and the body of the mandible

5. How many teeth are in the permanent set of teeth?
Interdental ligament
H20 - mucin - organic salts and digestive enzymes
Molars
32

6. Torus Mandibularis
Platysma - trapezius - sternocleidomastoid
6 months/3years
Excess bone formations under the tongue on the alvellar bone
Inner portion of the enamel rod

7. Caruncle
Incremental lines around the layers of the enamel matrix
Layers of tooth tissue become calcified
Teeth after cuspids
Fleshy elevation under the tongue

8. Dental Lamina
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Folds of tissue to the the lingual veins
A bat shaped bone which forms the anterior portion of the skull
Growth from the oral epithelium that gives rise to the tooth buds

9. Palatine Bones
The space between the unattached gingiva and the tooth
Joined at the midline and are often referred to as the median Palatine suture
Occurs in unusual ways and distorted crowns may appear
Raised vertical folds of tissue on the lateral border of the tongue

10. Internal Oblique Ridge
1500 millimeters
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
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
Follows the inside of the ramus and the body of the mandible

11. Imbracation Lines
Small curved lines that run parellel to the CEJ
Inside surface Which is towards the tongue - on anterior teeth
When cells rapidly increase in number
Growth from the oral epithelium that gives rise to the tooth buds

12. Maxillary vein
The development of different cells
Drains the Pterygoid plexus of the veins
A projection that extends off the back of the soft palate
A condition where the lower frenum attachment is very short/DDS/frenectomy

13. What kind of root does the maxillary first molar have?
Separation of the upper lip ( 1 of 1000 live births)
Surface away from the midline
Resists intrusive forces that try to push the tooth inwards
Triferacated

14. Groove
Small linear depression
Joined at the midline and are often referred to as the median Palatine suture
Calcium salts are deposited into formed tooth
Initiation of the tooth begins

15. Papilla
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
The layer of dentin that surrounds the pulp
Small raised projections where taste buds are located
Middle line of the teeth

16. Interdental Gingiva
Responsible for laying down the enamel matrix into place
Appears to be loosely attached - covering the alveolar bone.
Folds of tissue to the the lingual veins
An extension of an unattached gingiva and the tooth

17. Tendon
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Supplies blood to the brain and the eyes
The first predentin that is formed and matures within the tube
Band of fibrous tissue which attaches muscle to bone

18. Soft Palate
The inner surface of the lips
Responsible for laying down the enamel matrix into place
Developmental segment of a tooth
Covers muscle tissue in the posterior portion of the palate

19. Secondary palate
Supplies blood to the roots and periodontal ligaments of the interior teeth
Small dark brushes
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Forms the remaining 2/3 of the hard and soft palate uvula

20. Cleft Uvula
Mildest form of cleft palate
The fixed attachment of a muscle
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Molaris meaning millstone

21. Transverse Ridge
Small dark brushes
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
Assist in depressing the mandible and elevating the tongue

22. Stensens' Duct (aka Parotid)

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23. Lines of Retzius
Excess bone in the middle of the palate
Inside of the maxillary teeth
Tissue covering the alveolar processes
Incremental lines around the layers of the enamel matrix

24. If Palate not fused
Palatoglossus - palatopharyngeal
Third tooth from the midline
Teeth will not erupt in proper position
Portion of the lips where the skin meets the vermilion zone

25. External Auditory Meatus
Assists in elevating the chin
Opening for the ear
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Maxillary first molar

26. Alveolus
Bifurcated/ 5 cusps
The portion of the tooth that meets the gingiva
Bone that surrounds the root of the tooth
Outside surface Which is towards the cheek - on posterior teeth

27. Internal Carotid Artery
Supplies blood to the brain and the eyes
Substances between cells
The inner surface of the cheeks
Enamel forming cells

28. When do the tooth buds appear?
Second teeth next to central incisors
6 years old
Week 11
Canal or passage for fluid

29. Endoderm
Respiratory system - digestive system and glandular organs
Excess bone in the middle of the palate
The area on the crown of the tooth that is nearest the gingival
A rounded area beyond the last posterior maxillary tooth

30. Alveolar Mucosa
Layers of tooth tissue become calcified
Triangular space in the gingival direction when two adjacent teeth are in contact
No bicuspids/ no 3rd molars
Mucosa that covers the alveolar bone

31. What are the only permeant teeth that are not succedaneous?
Papillae that give the tongue the strawberry effect
Molars
Week 12
Assist in depressing the mandible and elevating the tongue

32. Palantine Tonsils
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
Substances between cells
Divides the crown and the root
Located in a depressed area between the pillars

33. How is the TMJ supported and what controls their movement?
Arteries supplying blood to most of the head and the neck
Ligaments and muscles of mastication
Cells develop into different tissues
The study of the microscopic structure and functions of tissues

34. Inferior Alveolar Artery
Study of prenatal growth and the developing process of an individual
Buccal - lingual - and inferior alveolar
Calcium salts are deposited into formed tooth
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries

35. Nasmyths Membrane
A flap of tissue on the on the buccal mucosa
The mandibular molars
The first predentin that is formed and matures within the tube
Covering over the enamel that is left over from the epithelium ameloblasts

36. Linea Alba
Small grooves noted on some teeth
Excess bone formations under the tongue on the alvellar bone
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Oval structures that are located on the dorsal surface of the tongue

37. Incisive Nerve branch
Aid in attaching the gingiva to the alveolar bone
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
Lower arch of the teeth
Intervating the anterior teeth and the labial gingiva

38. Buccal
Incremental lines around the layers of the enamel matrix
Small raised projections where taste buds are located
To bulge of curve outward
Outside surface Which is towards the cheek - on posterior teeth

39. Intercellular Substances
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Substances between cells
The ridges that run horizontally across the hard palate behind the incisive papilla
Constricts the nasopharyngeal passage and elevates the larynx

40. Imbrication lines
Teeth after cuspids
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Excess bone formations under the tongue on the alvellar bone

41. Calcification
Layers of tooth tissue become calcified
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
32
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged

42. Maxillary Tuberosity
Follows the length of the body of the mandible past the last tooth and up to the ramus
A rounded area beyond the last posterior maxillary tooth
Largest of the branches of the external carotid artery; supplies facial structure
The line of demarcation between the attached gingiva and the marginal gingiva

43. Nasolacrimal groove
Extends from the medial corner of the eye to the nasal cavity
Inside surface Which is towards the tongue - on anterior teeth
Three cusps/ trifurcated
Lift the hyoid bone and assist in opening the mouth

44. What is the smallest tooth in dentition?
Mandibular central incisors
Slight ridges on the cervical third of certain teeth that extend mesiodistally
A line that represents the alveolus bone lining the socket
Act to maintain the gingival integrity of the marginal gingiva

45. Articular Disc
Maxillary first molar
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
A horseshoe shaped groove that follow the curve of the dental arch
Lining covers inside of the oral cavity

46. Mylohyoid Artery
The corners of the mouth where the top and bottom lip meet
Composed of mucosa and surrounds the necks of the teeth
Causes a thickening of the cementum around the apex
Branches off the inferior alveolar artery before intering the mandibular canal

47. How many cusps/ roots do the maxillary first molars have?
4/5 cusps/ 3 roots
Small yellowish glands on the labial mucosa
The internal surface at the center of the mandible
Third tooth from the midline

48. Gingiva
The inner surface of the cheeks
Resists forces that try to pull the tooth outward
Composed of mucosa and surrounds the necks of the teeth
The space between the unattached gingiva and the tooth

49. Lesser Palatine Nerve
Third tooth from the midline
Small curved lines that run parellel to the CEJ
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
Smaller branch that ennervates the soft palate uvula and tonsils

50. If a patient receives toxic agents - how long does it take for their sense of taste to return?
Stained growth rings in dentin
Tissue fluid surrounding the cell membrane of the odontoblast
10 days
The space between the unattached gingiva and the tooth