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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. Mylohyoid Nerve Branch
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip

2. Sublingual Sulcus
Duct located on the parotid papilla
A horseshoe shaped groove that follow the curve of the dental arch
4 cusps/ bifurcated
Fifth cusp located on the mesial surface lingual surface of maxillary first molars

3. Angle of the Mandible
Opening in the mouth below the orbit on the maxillary bone
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Where the ramus meets the body of the mandible on the outside border
Located in a depressed area between the pillars

4. Mandibular Artery
Rounded depression on a tooth
Study of prenatal growth and the developing process of an individual
Disk that acts like a cushion between the temporal bone and the condyloid process
Located behind the ramus of the mandible and branches into five arteries

5. Circumpulpal Dentin
Allow flexibility during mastication - speech
The layer of dentin that surrounds the pulp
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Slight ridges on the cervical third of certain teeth that extend mesiodistally

6. Mental Nerve Branch
To dissolve
Largest division of the trigeminal nerve
The first predentin that is formed and matures within the tube
Divides the crown and the root

7. Calcification
Layers of tooth tissue become calcified
A flap of tissue on the on the buccal mucosa
Acts as anchors between the alveolar bone and the tooth
Ligaments and muscles of mastication

8. What are the 4 pairs of muscles of mastication!
Moves the head backward and laterally
Extends from the medial corner of the eye to the nasal cavity
Lift the hyoid bone and assist in opening the mouth
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles

9. Infraorbital Foramen
Palatoglossus - palatopharyngeal
An enclosed area that matures into dentin - cementum and pulp
Drains the maxiallary artery and superficial temporal arteries
Opening in the mouth below the orbit on the maxillary bone

10. When does the maxillary first molar erupt?
Bi-cuspids
Supplies blood to the face and oral cavity
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
6 years old

11. Cervical Third
32
H20 - mucin - organic salts and digestive enzymes
The area on the crown of the tooth that is nearest the gingival
Cells develop into different tissues

12. What are the three muscles of the neck?
Supplies blood to the roots and periodontal ligaments of the interior teeth
Trigeminal - facial - glossopharyngeal - hypoglossal
A bony projection that separates each socket
Platysma - trapezius - sternocleidomastoid

13. Philtrum
Resists forces that try to pull the tooth outward
A dense tissue covered with mucous membrane that can withstand chewing
Band of fibrous tissue which attaches muscle to bone
Vertical groove on the midline of the upper lip

14. Palatine Rugae
The ridges that run horizontally across the hard palate behind the incisive papilla
32
A pocket formed by the soft tissue of cheeks and gingiva
Small dark brushes

15. Concave
The first predentin that is formed and matures within the tube
Teeth after cuspids
Developmental segment of a tooth
Indented

16. Linea Alba
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Of or pertaining to area surrounding naval cavity
32

17. Occlusal
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Small linear depression
Pulverizing or chewing surface
Fleshy elevation under the tongue

18. Sphenoid
Function to resist rotational forces and tilting
The line of demarcation between the attached gingiva and the marginal gingiva
The outer edge of the nostril
A bat shaped bone which forms the anterior portion of the skull

19. Ameloblast
The inner surface of the cheeks
Enamel forming cells
Extreme variations from the norm
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip

20. Evanesce
Two weeks thru 8th week
To dissolve
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
4/5 cusps/ 3 roots

21. Function of Digastric
Largest facial bone with two sections joined at the median suture
Lift the hyoid bone and assist in opening the mouth
An overgrowth of the gingival tissue
2 small raised folds of tissue where the lingual frenum attaches

22. Cuspid
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Third tooth from the midline
Resist rotational forces and hold teeth in inter-proximal contact
Smaller branch that ennervates the soft palate uvula and tonsils

23. Where is the palate located?
The groove below the lower lips that separates the lips from the chin
The line of demarcation between the attached gingiva and the marginal gingiva
Inside of the maxillary teeth
Three cusps/ trifurcated

24. Function of Geniohyoid
Pulls the hyoid bone and the tongue anteriorly
The tip of the chin
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
Responsible for laying down the enamel matrix into place

25. Primary Dentin
A junction or center of veins that directly or indirectly drain a vast area
Surface away from the midline
A triangular area located behind the last molar
Forms the bulk of the tooth

26. Frenum
Band of fibrous tissue which attaches bone to bone
The study of the microscopic structure and functions of tissues
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Triferacated

27. Succedaneous teeth
Study of prenatal growth and the developing process of an individual
Tissue covering the alveolar processes
Permeante teeth replace the primary teeth
Two

28. How many cusps/ roots do the 2/3rd mandibular molars have?
Natural teeth in position
The largest of three openings located in the posterior region of the hard palate
Appears to be loosely attached - covering the alveolar bone.
4 cusps/ bifurcated

29. Alveolar Crest
The mandibular molars
Two cortical bone plates that come together between each tooth
A small projection in the middle of the upper lip
To bulge of curve outward

30. Tome's process
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Responsible for laying down the enamel matrix into place
32
Molaris meaning millstone

31. Posterior Tonsillar Pillar
Set of arches found farther in the back of the throat
Calcified masses of dentin
Drains the facial structures beginning near the eye and descending toward the mandible
Located behind the ramus of the mandible and branches into five arteries

32. Horizontal Fiber Group
Conception thru the first two weeks
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Forms into dentin - cementum and pulp of the teeth
Functions the same as the alveolar cfg; originate in alveolar bone

33. What are the 4 maxillary nerve branches?
Duct located on the parotid papilla
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Two
Resist rotational forces and hold teeth in inter-proximal contact

34. Convex
To bulge of curve outward
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Peg shaped crown with a smooth surface
Branches off the inferior alveolar artery before intering the mandibular canal

35. Incisive Nerve branch
Largest facial bone with two sections joined at the median suture
Intervating the anterior teeth and the labial gingiva
The largest of the salivary glands which lie just below and in front of the ear
An extension of an unattached gingiva and the tooth

36. When do the tooth buds appear?
Occurs in unusual ways and distorted crowns may appear
The development of different forms
Week 11
Found only in multi-rooted teeth and resists rotational forces

37. Maxillary vein
Upper arch of the teeth
Trigeminal nerve--because it ennervates the maxilla and the mandible
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Drains the Pterygoid plexus of the veins

38. What is Ankyloglossia and who can treat it / What is the treatment called?
Substances between cells
Found near the cementoenamel junction
The development of different cells
A condition where the lower frenum attachment is very short/DDS/frenectomy

39. Gestational period
Mucosa that covers the alveolar bone
9 months (5 months ultrasound to tell sex)
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
Found only in multi-rooted teeth and resists rotational forces

40. Mylohyoid Artery
Functions the same as the alveolar cfg; originate in alveolar bone
Hinge motion and gliding movement
Branches off the inferior alveolar artery before intering the mandibular canal
Arteries supplying blood to most of the head and the neck

41. Lamina Dura
A line that represents the alveolus bone lining the socket
Shaping the tongue during speech - mastication and swallowing
Corners of the mouth
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue

42. Hard Palate
Dentin found between the tubules
A bony plate covered with keratinized tissue located in the anterior portion of the palate
The outer edge of the nostril
Appears to be loosely attached - covering the alveolar bone.

43. Fibroblasts
Cells From which connective tissue evolve
Excess bone formations under the tongue on the alvellar bone
Platysma - trapezius - sternocleidomastoid
12 years

44. Imbrication lines
Largest division of the trigeminal nerve
The development of different cells
Used to pulverize food
Slight ridges on the cervical third of certain teeth that extend mesiodistally

45. Attached Gingiva
Wings of the sphenoid bone
A shallow v-shaped depression located below the bottom of the nose and above the lips
Used to pulverize food
Extends from the mucogingival junction to the gingival groove

46. Distal
Act to maintain the gingival integrity of the marginal gingiva
Surface away from the midline
Study of the structure and form of the teeth
Drains the facial structures beginning near the eye and descending toward the mandible

47. Vestibule Fornix
The deepest point of the vestibule
Pointed or rounded mounds on the crown of the tooth
Biting edge of the teeth
Used to pulverize food

48. Oblique Fiber Group
Developmental segment of a tooth
Resists intrusive forces that try to push the tooth inwards
A period of both primary teeth and permeant teeth are in the dentition
Origin - fixed point - insertion - movable point

49. How many cusps does the second bicuspid have?
Palatoglossus - palatopharyngeal
Stained growth rings in dentin
Two
Curve outward

50. Morphology
Study of the structure and form of the teeth
Shaping the tongue during speech - mastication and swallowing
Drains the floor of the mouth
To dissolve