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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. Exfoliated
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
Origin - fixed point - insertion - movable point
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Shed from the oral cavity

2. Imbracation Lines
Digstric - Mylohyoid - stylohyoid - geniohyoid
The groove below the lower lips that separates the lips from the chin
Retracts the tongue and raises the tip of the tongue
Small curved lines that run parellel to the CEJ

3. Caruncle
Elevates the posterior portion of the tongue and narrows the fauces
Ligaments and muscles of mastication
Covering over the enamel that is left over from the epithelium ameloblasts
Fleshy elevation under the tongue

4. Calcification
Layers of tooth tissue become calcified
The mandibular molars
Week 11
When the tissue becomes inflamed

5. Function of Platysma
Cheek bones--the most breakable bone in the body
A junction or center of veins that directly or indirectly drain a vast area
Draws down the mandible and corners of the mouth
Small head - low nasal bridge - thin upper lip - small mandible

6. Philtrum
Where the ramus meets the body of the mandible on the outside border
Circle and tighten the gingival margin around the neck of the tooth
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Vertical groove on the midline of the upper lip

7. Torus
A line of tissue that extends from the tongue to the floor of the mouth
Excess bone in the middle of the palate
Drains the floor of the mouth
The ridges that run horizontally across the hard palate behind the incisive papilla

8. Cleft Palate
The tip of the chin
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Small raised projections where taste buds are located
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)

9. Interradical Fiber Group
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Found only in multi-rooted teeth and resists rotational forces
Oval structures that are located on the dorsal surface of the tongue

10. Lingual
Enamel is thinner - pulp chamber is smaller -
Inside surface Which is towards the tongue - on anterior teeth
Two weeks thru 8th week
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch

11. Lamina Dura
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Lower arch of the teeth
A line that represents the alveolus bone lining the socket
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

12. Maxillary Nerve Branch
Dentin found between the tubules
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Interdental ligament
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue

13. Secondary Dentin
Forms after the completion of the apical foramen
Pulverizing or chewing surface
Maxillary first molar
A raised white line that runs parallel to where the teeth meet on the buccal mucosa

14. Intercellular Substances
A pocket formed by the soft tissue of cheeks and gingiva
Inside surface Which is towards the tongue - on anterior teeth
Buccal - lingual - and inferior alveolar
Substances between cells

15. Saliva
Forms the remaining 2/3 of the hard and soft palate uvula
Clear fluid secreted by the salivary and mucous glands throughout the mouth
The layer of dentin that surrounds the pulp
To bulge of curve outward

16. Central Incisor
Greater - lesser - naso palatine nerves
The tip of the chin
Wings of the sphenoid bone
Middle two teeth in the mouth

17. Deep Facial Veins
Allow flexibility during mastication - speech
No bicuspids/ no 3rd molars
Supplies blood to the face and oral cavity
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins

18. What is the most common problem with TMJ
Calcified masses of dentin
The disc becomes displaced
Supplies blood to the roots and periodontal ligaments of the interior teeth
Full deep rich sound in nasal cavity

19. Median Sulcus
Small dark brushes
When the surface of the teeth becomes grooved
What divides the tongue in half and runs from the base to the tip of the tongue
Digstric - Mylohyoid - stylohyoid - geniohyoid

20. External Carotid Artery
Peg shaped crown with a smooth surface
Surface towards the midline
Supplies blood to the face and oral cavity
Digstric - Mylohyoid - stylohyoid - geniohyoid

21. Cleft Lip
Separation of the upper lip ( 1 of 1000 live births)
To dissolve
A projection that extends off the back of the soft palate
Hinge motion and gliding movement

22. What is the purpose of permanent teeth?
Initiation of the tooth begins
Natural teeth in position
Cut - tear - and grind food
Bluish veins that run the length of the tongue

23. Cemental Spurs
Supplies blood to the brain and the eyes
The area on the crown of the tooth that is nearest the gingival
Short tubules that seem to crossover to the enamel
Found near the cementoenamel junction

24. Maxillary Arch
Upper arch of the teeth
Calcified masses of dentin
Sharp projection on the under surface of the temporal bone
Band of fibrous tissue which attaches bone to bone

25. Incisive Arteries
A small projection in the middle of the upper lip
Supplies blood to the roots and periodontal ligaments of the interior teeth
Divides the crown and the root
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue

26. Gingiva
Composed of mucosa and surrounds the necks of the teeth
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
The bone that separates the root on a tooth
Interdental ligament

27. Anterior Alveolar Nerve
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
An overgrowth of the gingival tissue
The largest of three openings located in the posterior region of the hard palate
Vertical groove on the midline of the upper lip

28. Circular Ligament Fiber Groups
The tip of the chin
Portion of the lips where the skin meets the vermilion zone
Resists intrusive forces that try to push the tooth inwards
Circle and tighten the gingival margin around the neck of the tooth

29. Function of Trapezius
Appears to be loosely attached - covering the alveolar bone.
Moves the head backward and laterally
Calcified masses of dentin
Inside of the maxillary teeth

30. Which molar is the wisdom tooth
Allow flexibility during mastication - speech
The connective tissue of the marginal gingiva
Maxillary third molar
Study of the structure and form of the teeth

31. Muscle Insertion
The moveable attachment of the muscle
Lower arch of the teeth
2 small raised folds of tissue where the lingual frenum attaches
Wearing away of the incisal or occlusal surfaces of the tooth

32. How can you tell if someone has cancer by looking at the tongue?
Genioglossus - hyoglossus - styloglossus - palatoglossus
Creates the wall of the dentinal tubule
Looking at the border of the tongue
Lower arch of the teeth

33. Function of Digastric
Lift the hyoid bone and assist in opening the mouth
Compact bone plate of the facial and lingual surfaces
Outside surface Which is towards the lips
Folds of tissue that extend horizontally from the uvula to the base of the tongue

34. Attrition
The outer edge of the nostril
Intervating the anterior teeth and the labial gingiva
Wearing away of the incisal or occlusal surfaces of the tooth
Week 12

35. Retromolar Area
Surface towards the midline
Convex area on the lingual surface near gingiva
A triangular area located behind the last molar
The largest of three openings located in the posterior region of the hard palate

36. Sublingual Caruncles
Bone that surrounds the root of the tooth
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
2 small raised folds of tissue where the lingual frenum attaches
Draws the hyoid bone superiorly and posteriorly and stabilizes it

37. Function of Styloglossus
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
The fixed attachment of a muscle
Retracts the tongue and raises the tip of the tongue
Opening for the ear

38. Lingual Foramen
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Inner portion of the enamel rod
The internal surface at the center of the mandible
Excess bone in the middle of the palate

39. Contact Area
A horseshoe shaped groove that follow the curve of the dental arch
Formed by the uniting of lobes during development of crown
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
Where the proximal sides of two teeth come together and touch

40. Cervical line
Forms the bulk of the tooth
Small bony projections surrounding the lingual foramen
Teeth will not erupt in proper position
Divides the crown and the root

41. Palatine Raphe
Occlusal surface of the posterior tooth
Located on the inside of the body of the ramus
The slightly raised line extending down the middle of the hard palate
A projection that extends off the back of the soft palate

42. Lines of Retzius
Short tubules that seem to crossover to the enamel
Surface away from the midline
Separation of the upper lip ( 1 of 1000 live births)
Incremental lines around the layers of the enamel matrix

43. Posterior Superior Alveolar Nerve
Teeth will not erupt in proper position
Incremental lines around the layers of the enamel matrix
Interdental ligament
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar

44. Mandibular Artery
Extends from the mucogingival junction to the gingival groove
Pointed elongations of the pulp
Act to maintain the gingival integrity of the marginal gingiva
Located behind the ramus of the mandible and branches into five arteries

45. How much saliva do the salivary glands produce in 24 hours?
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
An extension of an unattached gingiva and the tooth
2 to 3 pints
A projection that extends off the back of the soft palate

46. Labial Mucosa
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
The inner surface of the lips
Used to pulverize food

47. Taste Buds
Forms after the completion of the apical foramen
Oval structures that are located on the dorsal surface of the tongue
Initiation of the tooth begins
Synovial fluid

48. Incisal third
An extension of an unattached gingiva and the tooth
A condition where the lower frenum attachment is very short/DDS/frenectomy
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar

49. Ligament
Incremental line indicating trauma of birth
Band of fibrous tissue which attaches bone to bone
Inside of the maxillary teeth
Anterior to the ethmoid bone and part of the orbit (corners of the eye)

50. Function of Hyoglossus
The development of different forms
Depresses the tongue
Three cusps/ trifurcated
Growth from the oral epithelium that gives rise to the tooth buds