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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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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. Anterior Tonsillar Pillar
Folds of tissue that extend horizontally from the uvula to the base of the tongue
The cornerstone of the mouth
Conception thru the first two weeks
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface

2. What are the 4 taste senses and where are they located?
Linear elevation of the tooth
Resulting from an imperfect union where the lobes come together
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue

3. Tendon
Peg shaped crown with a smooth surface
Band of fibrous tissue which attaches muscle to bone
Covering over the enamel that is left over from the epithelium ameloblasts
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate

4. Mixed Dentition
Dividing point of a multi-rooted tooth
A period of both primary teeth and permeant teeth are in the dentition
Cheek bones--the most breakable bone in the body
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth

5. Gingiva
A dense tissue covered with mucous membrane that can withstand chewing
A period of both primary teeth and permeant teeth are in the dentition
Sharp projection on the under surface of the temporal bone
Cells that form cementum

6. Dentoperiosteal Fiber Groups
Supportive fibers that anchor the tooth to the bone
Where the ectoderm layer matures into the enamel
A horseshoe shaped groove that follow the curve of the dental arch
A rounded area beyond the last posterior maxillary tooth

7. Lingual
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Retracts or depresses the tongue
Inside surface Which is towards the tongue - on anterior teeth
The cornerstone of the mouth

8. Salivary Glands
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Secrete saliva to assist in process of digestion
The corners of the mouth where the top and bottom lip meet
An extension of an unattached gingiva and the tooth

9. Apical Fiber Group
Formed by the fibroblast cells and secures the tooth in the socket
Set of arches found farther in the back of the throat
Resists forces that try to pull the tooth outward
Ligaments and muscles of mastication

10. Agenesis
The inner surface of the lips
Appears to be loosely attached - covering the alveolar bone.
Occurs in unusual ways and distorted crowns may appear
Resulting from an imperfect union where the lobes come together

11. Mylohyoid Nerve Branch
Molars
Excess bone in the middle of the palate
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
The layer of dentin that surrounds the pulp

12. Anterior Alveolar Nerve
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Cells that form dentin
Located on the inside of the body of the ramus
Forming organ takes shape and resembles the shape of a bell

13. What is the maxillary cuspid known as?
The cornerstone of the mouth
Dividing point of a multi-rooted tooth
Narrow long enamel tuft
The inner surface of the lips

14. Peg lateral
Peg shaped crown with a smooth surface
Separates the developing oral cavities from the nasal cavities
The outer edge of the nostril
Supplies blood to the brain and the eyes

15. Midline
Digstric - Mylohyoid - stylohyoid - geniohyoid
2 small raised folds of tissue where the lingual frenum attaches
Middle line of the teeth
Assists in elevating the chin

16. Function of Sternocleidomastoid
Smaller branch that ennervates the soft palate uvula and tonsils
Conception thru the first two weeks
Assists in elevating the chin
Assist in depressing the mandible and elevating the tongue

17. Function of Geniohyoid
Where the ramus meets the body of the mandible on the outside border
A faint line going from the ala of the nose to the corner of the mouth
Pulls the hyoid bone and the tongue anteriorly
Slight ridges on the cervical third of certain teeth that extend mesiodistally

18. Incisive Papilla
Three cusps/ trifurcated
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
H20 - mucin - organic salts and digestive enzymes
A raised area of tissue laying behind the maxillary central incisors on the hard palate

19. Incisal third
Outside surface Which is towards the cheek - on posterior teeth
Second teeth next to central incisors
Molars
The crown of the tooth that is nearest the incisal edge near the anterior tooth

20. Mastoid process
Bony projection found on the bottom border of the temporal bone
Bluish veins that run the length of the tongue
Divides the crown and the root
Resists intrusive forces that try to push the tooth inwards

21. Anomalies
Forms a large cavity above the roots of the maxillary molars
The portion of the tooth that meets the gingiva
Extreme variations from the norm
The largest of three openings located in the posterior region of the hard palate

22. Contact Area
Pulls the hyoid bone and the tongue anteriorly
Quarters of the teeth
Where the proximal sides of two teeth come together and touch
Digstric - Mylohyoid - stylohyoid - geniohyoid

23. Purpose of premolars
Used to pulverize food
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Pulverizing or chewing surface
Dividing point of a multi-rooted tooth

24. Apposition
Calcium salts are deposited into formed tooth
The outer edge of the nostril
Band of fibrous tissue which attaches bone to bone
Full deep rich sound in nasal cavity

25. Ala of the Nose
Aid in attaching the gingiva to the alveolar bone
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
The outer edge of the nostril
Set of arches found farther in the back of the throat

26. Fetal Alcohol Syndrome symptons
Study of the structure and form of the teeth
Occurs in unusual ways and distorted crowns may appear
Small head - low nasal bridge - thin upper lip - small mandible
An enclosed area that matures into dentin - cementum and pulp

27. Lines of Retzius
Incremental lines around the layers of the enamel matrix
The teeth located at the back of the mouth
Triangular space in the gingival direction when two adjacent teeth are in contact
An overgrowth of the gingival tissue

28. Xerostomia
Excess dryness of the mouth
Folds of tissue that extend horizontally from the uvula to the base of the tongue
12 years
A junction or center of veins that directly or indirectly drain a vast area

29. Function of Palatopharyngeal
Constricts the nasopharyngeal passage and elevates the larynx
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Sharp projection on the under surface of the temporal bone
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

30. Enamel Lamellae
Outside surface Which is towards the cheek - on posterior teeth
Narrow long enamel tuft
Mucosa that covers the alveolar bone
Drains the Pterygoid plexus of the veins

31. External Carotid Artery
Found only in multi-rooted teeth and resists rotational forces
Supplies blood to the face and oral cavity
Excess dryness of the mouth
Third tooth from the midline

32. Xygote
Maxillary third molar
Small bony projections surrounding the lingual foramen
Pulverizing or chewing surface
When cells rapidly increase in number

33. Embryo
1500 millimeters
Trigeminal nerve--because it ennervates the maxilla and the mandible
Pointed or rounded mounds on the crown of the tooth
Two weeks thru 8th week

34. Intercellular Substances
The space between the unattached gingiva and the tooth
Substances between cells
Middle two teeth in the mouth
The bone that separates the root on a tooth

35. Mental Protuberance
Sharp projection on the under surface of the temporal bone
A rounded area beyond the last posterior maxillary tooth
The tip of the chin
When cells rapidly increase in number

36. When do the primary teeth begin erupting and are fully erupted?
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
6 months/3years
Where the ectoderm layer matures into the enamel
Formed by the fibroblast cells and secures the tooth in the socket

37. Interradicular Septum
The bone that separates the root on a tooth
Portion covered with cementum
The slightly raised line extending down the middle of the hard palate
The portion of the tooth that meets the gingiva

38. Incisive Nerve branch
Intervating the anterior teeth and the labial gingiva
Lining covers inside of the oral cavity
Resists intrusive forces that try to push the tooth inwards
Assist in depressing the mandible and elevating the tongue

39. Mamelons
32
Joined at the midline and are often referred to as the median Palatine suture
The fixed attachment of a muscle
Three bulges on the incisal edge

40. When do the tooth buds appear?
Raised vertical folds of tissue on the lateral border of the tongue
Depresses the tongue
Drains the Pterygoid plexus of the veins
Week 11

41. Periodontium
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
The mandibular molars
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

42. Lesser Palatine Foramen
A rounded area beyond the last posterior maxillary tooth
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Duct located on the parotid papilla
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider

43. How many cusps/ roots do the maxillary first molars have?
Bone that surrounds the root of the tooth
Separation of the upper lip ( 1 of 1000 live births)
2 to 3 pints
4/5 cusps/ 3 roots

44. Maxillary Arch
Raised vertical folds of tissue on the lateral border of the tongue
Glands the size of a walnut that lie on the inside of the mandible and empty saliva into the mouth thru the Wharton's duct
Upper arch of the teeth
Divides the crown and the root

45. What teeth are removed if overcrowding occurs?
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
Bicuspids
The tip of the chin
Constricts the nasopharyngeal passage and elevates the larynx

46. Angle of the Mandible
Where the ramus meets the body of the mandible on the outside border
Sharp projection on the under surface of the temporal bone
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Raised vertical folds of tissue on the lateral border of the tongue

47. Cementoblast
Demonstrates a disturbance in the body metabolism
Cells that form cementum
Hinge motion and gliding movement
Mildest form of cleft palate

48. How is the TMJ supported and what controls their movement?
What divides the tongue in half and runs from the base to the tip of the tongue
Cells that form dentin
Ligaments and muscles of mastication
The gingiva in the floor of the gingival sulcus that attaches to the enamel

49. What are the largest and strongest of the mandibular teeth
The mandibular molars
Arteries supplying blood to most of the head and the neck
The portion of the tooth that meets the gingiva
Set of arches found farther in the back of the throat

50. Histo Differentiation
Cells develop into different tissues
Study of the structure and form of the teeth
Growth from the oral epithelium that gives rise to the tooth buds
Mildest form of cleft palate