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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.
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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. Filiform Papillae
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Small bony projections surrounding the lingual foramen
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Wings of the sphenoid bone

2. What are the 4 extrinsic muscles of the tongue
The moveable attachment of the muscle
Genioglossus - hyoglossus - styloglossus - palatoglossus
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
To bulge of curve outward

3. What are the 2 sets of teeth?
Primary and permanent
Creates the wall of the dentinal tubule
The disc becomes displaced
A shallow v-shaped depression located below the bottom of the nose and above the lips

4. External Auditory Meatus
Elevated are of enamel that forms the Mesial and distal borders
Opening for the ear
Small linear depression
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

5. When do oral and nasal cavity separate and palate develop?
The mandibular first premolar
Calcium salts are deposited into formed tooth
Week 12
What divides the tongue in half and runs from the base to the tip of the tongue

6. Xerostomia
Chewing and swallowing food
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Resist rotational forces and hold teeth in inter-proximal contact
Excess dryness of the mouth

7. What are the 4 pairs of muscles of mastication!
The area on the crown of the tooth that is nearest the gingival
Forms after the completion of the apical foramen
When cells rapidly increase in number
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles

8. Incisal Edge
Drains the superficial veins of the face and neck into the subclavian vein
Constricts the nasopharyngeal passage and elevates the larynx
Mildest form of cleft palate
Biting edge of the teeth

9. How many cusps/ roots do the maxillary first molars have?
Folds of tissue to the the lingual veins
9 weeks thru birth
4/5 cusps/ 3 roots
When cells rapidly increase in number

10. Neonatal line
Incremental line indicating trauma of birth
Molars
Oval structures that are located on the dorsal surface of the tongue
Slight ridges on the cervical third of certain teeth that extend mesiodistally

11. What is the function of the buccle nerve branch?
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
Folds of tissue to the the lingual veins
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars

12. Mastication
Chewing and swallowing food
Two
Hinge motion and gliding movement
4 cusps/ bifurcated

13. Which molar is the wisdom tooth
Week 12
Maxillary third molar
Located behind the ramus of the mandible and branches into five arteries
The fixed attachment of a muscle

14. Labial-Mental Groove
The groove below the lower lips that separates the lips from the chin
2 small raised folds of tissue where the lingual frenum attaches
Excess bone formations under the tongue on the alvellar bone
Divides the crown and the root

15. Triangular Ridge
6 years old
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Bluish veins that run the length of the tongue

16. What are the two ways the TMJs move?
Largest division of the trigeminal nerve
The bone that separates the root on a tooth
Hinge motion and gliding movement
Place where the groove comes together or fissures cross

17. Foliate Papillae
Two
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Raised vertical folds of tissue on the lateral border of the tongue
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

18. Osteoclasts
Bifurcated/ 5 cusps
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
A junction or center of veins that directly or indirectly drain a vast area

19. Dentinal Fluid
Canal or passage for fluid
Middle line of the teeth
Tissue fluid surrounding the cell membrane of the odontoblast
Elevated are of enamel that forms the Mesial and distal borders

20. Mental Artery
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Cheek bones--the most breakable bone in the body
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
When the dentin is exposed

21. Sulingual Folds
The space between the unattached gingiva and the tooth
Branches off the inferior alveolar artery before intering the mandibular canal
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
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

22. Lines of Retzius
Incremental lines around the layers of the enamel matrix
To dissolve
Elevates the posterior portion of the tongue and narrows the fauces
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)

23. Fetal Alcohol Syndrome symptons
Creates the wall of the dentinal tubule
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Small head - low nasal bridge - thin upper lip - small mandible
The mandibular molars

24. Function of Styloglossus
Retracts the tongue and raises the tip of the tongue
Draws down the mandible and corners of the mouth
Primitive mouth
Week 11

25. Convex
Middle two teeth in the mouth
Moves the head backward and laterally
A dense tissue covered with mucous membrane that can withstand chewing
To bulge of curve outward

26. Hard Palate
A line of demarcation between the attached gingiva and alveolar mucosa
Found near the cementoenamel junction
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Supplies blood to the face and oral cavity

27. Papilla
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Small raised projections where taste buds are located
Creates the wall of the dentinal tubule
A rounded area beyond the last posterior maxillary tooth

28. Oblique Fiber Group
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
An overgrowth of the gingival tissue
Resists intrusive forces that try to push the tooth inwards
Calcified masses of dentin

29. Mylohyoid Nerve Branch
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Vertical groove on the midline of the upper lip
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
The inner surface of the lips

30. Dentoperiosteal Fiber Groups
Supportive fibers that anchor the tooth to the bone
4/5 cusps/ 3 roots
When the dentin is exposed
Excess dryness of the mouth

31. Duct
Canal or passage for fluid
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
4th week
Palatoglossus - palatopharyngeal

32. Cemental Spurs
Found near the cementoenamel junction
Palatoglossus - palatopharyngeal
The portion of the tooth that meets the gingiva
A period of both primary teeth and permeant teeth are in the dentition

33. Contact Area
A line of tissue that extends from the tongue to the floor of the mouth
Located on the inside of the body of the ramus
Where the proximal sides of two teeth come together and touch
The study of the microscopic structure and functions of tissues

34. Median Sulcus
Forming organ takes shape and resembles the shape of a bell
Located in a depressed area between the pillars
A small projection in the middle of the upper lip
What divides the tongue in half and runs from the base to the tip of the tongue

35. Parotid glands
The largest of the salivary glands which lie just below and in front of the ear
Covers muscle tissue in the posterior portion of the palate
The tip of the chin
Moves the head backward and laterally

36. Facial Vein
Assist in depressing the mandible and elevating the tongue
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Drains the facial structures beginning near the eye and descending toward the mandible
Drains the Pterygoid plexus of the veins

37. Morpho Differentiation
The study of the microscopic structure and functions of tissues
Drains the maxiallary artery and superficial temporal arteries
Forming organ takes shape and resembles the shape of a bell
Allow flexibility during mastication - speech

38. Where is the palate located?
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
A triangular area located behind the last molar
Inside of the maxillary teeth
The mandibular molars

39. Retromolar Area
A triangular area located behind the last molar
The fixed attachment of a muscle
Forms the remaining 2/3 of the hard and soft palate uvula
10 days

40. Mylohyoid Artery
A rounded area beyond the last posterior maxillary tooth
Pointed elongations of the pulp
Small bony projections surrounding the lingual foramen
Branches off the inferior alveolar artery before intering the mandibular canal

41. Cuspid
Middle two teeth in the mouth
Respiratory system - digestive system and glandular organs
Third tooth from the midline
Papillae that give the tongue the strawberry effect

42. Soft Palate
Peg shaped crown with a smooth surface
Covers muscle tissue in the posterior portion of the palate
A line of tissue that extends from the tongue to the floor of the mouth
Second teeth next to central incisors

43. What is Ankyloglossia and who can treat it / What is the treatment called?
12 years
Dividing point of a multi-rooted tooth
Wearing away of the incisal or occlusal surfaces of the tooth
A condition where the lower frenum attachment is very short/DDS/frenectomy

44. What is another name for premolars?
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Bi-cuspids
The development of different tissues

45. Nasolacrimal groove
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Extends from the medial corner of the eye to the nasal cavity
What divides the tongue in half and runs from the base to the tip of the tongue

46. Exfoliated
Creates the wall of the dentinal tubule
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Shed from the oral cavity
Assist in depressing the mandible and elevating the tongue

47. Xygote
When cells rapidly increase in number
Study of prenatal growth and the developing process of an individual
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
The development of different forms

48. Vestibule
A flap of tissue on the on the buccal mucosa
Permeante teeth replace the primary teeth
A pocket formed by the soft tissue of cheeks and gingiva
The tip of the chin

49. Fibroblasts
Shaping the tongue during speech - mastication and swallowing
A bony projection that separates each socket
Triferacated
Cells From which connective tissue evolve

50. Buckle groove
Branches off the inferior alveolar artery before intering the mandibular canal
Opening for the ear
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
A dense tissue covered with mucous membrane that can withstand chewing