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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. Imbrication lines
Appears to be loosely attached - covering the alveolar bone.
Smaller branch that ennervates the soft palate uvula and tonsils
Slight ridges on the cervical third of certain teeth that extend mesiodistally
The mandibular first premolar

2. Gestational period
9 months (5 months ultrasound to tell sex)
20
Forms a large cavity above the roots of the maxillary molars
The space between the unattached gingiva and the tooth

3. Maxillary Artery
The ridges that run horizontally across the hard palate behind the incisive papilla
Outside surface Which is towards the lips
Largest of the branches of the external carotid artery; supplies facial structure
The bone that separates the root on a tooth

4. Sharpey's Fibers
Pulls the hyoid bone and the tongue anteriorly
Acts as anchors between the alveolar bone and the tooth
Wings of the sphenoid bone
Orbicularis oris - buccinator - mentalis - zygomatic major

5. Function of Digastric
Synovial fluid
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Lift the hyoid bone and assist in opening the mouth
Peg shaped crown with a smooth surface

6. Muscle origine
The fixed attachment of a muscle
Drains the Pterygoid plexus of the veins
A horseshoe shaped groove that follow the curve of the dental arch
Curve outward

7. Cingulum
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Convex area on the lingual surface near gingiva
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Excess bone in the middle of the palate

8. Internal Carotid Artery
Small raised projections where taste buds are located
Supplies blood to the brain and the eyes
Chewing and swallowing food
Forms the remaining 2/3 of the hard and soft palate uvula

9. Submandibular Glands

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10. Apposition
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
Oval depression of temporal bone in condyloid process
The tip of the chin

11. Epithelial Attachment
The moveable attachment of the muscle
The gingiva in the floor of the gingival sulcus that attaches to the enamel
(free gingiva) surrounds the teeth
Largest division of the trigeminal nerve

12. Neonatal line
Supplies blood to the face and oral cavity
Digstric - Mylohyoid - stylohyoid - geniohyoid
Incremental line indicating trauma of birth
H20 - mucin - organic salts and digestive enzymes

13. Oblique Ridge
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Retracts or depresses the tongue
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Slight ridges on the cervical third of certain teeth that extend mesiodistally

14. Gland
Cluster of tissue that manufactures and secrets fluid
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
A bony plate covered with keratinized tissue located in the anterior portion of the palate

15. Middle Superior Alveolar Nerve
The inner surface of the cheeks
Bifurcated/ 5 cusps
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Portion of the lips where the skin meets the vermilion zone

16. Maxillary Sinus
Lower arch of the teeth
The corners of the mouth where the top and bottom lip meet
Forms a large cavity above the roots of the maxillary molars
Excess bone formations under the tongue on the alvellar bone

17. Ectoderm
Wings of the sphenoid bone
Oval structures that are located on the dorsal surface of the tongue
6 months/3years
Forms into the inner lining of the oral cavitiy and enamel of the teeth

18. Imbritation Lines of Von Eboner
Constricts the nasopharyngeal passage and elevates the larynx
Stained growth rings in dentin
Shaping the tongue during speech - mastication and swallowing
Tissue covering the alveolar processes

19. Fibroblasts
Found near the cementoenamel junction
Cells From which connective tissue evolve
Raised vertical folds of tissue on the lateral border of the tongue
An extension of an unattached gingiva and the tooth

20. Evanesce
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
The cornerstone of the mouth
Located on the inside of the body of the ramus
To dissolve

21. Sulingual Folds
Rounded depression on a tooth
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
Middle two teeth in the mouth
Forms after the completion of the apical foramen

22. Apical Fiber Group
2 small raised folds of tissue where the lingual frenum attaches
The internal surface at the center of the mandible
When the surface of the teeth becomes grooved
Resists forces that try to pull the tooth outward

23. Mylohyoid Nerve Branch
Largest division of the trigeminal nerve
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle

24. What is the purpose of permanent teeth?
Covering over the enamel that is left over from the epithelium ameloblasts
Cut - tear - and grind food
Extends from the mucogingival junction to the gingival groove
Primitive mouth

25. How much saliva is produced daily?
1500 millimeters
When the dentin is exposed
Moves the head backward and laterally
The cornerstone of the mouth

26. Philtrum
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Two weeks thru 8th week
Narrow long enamel tuft
Vertical groove on the midline of the upper lip

27. Facial development
A junction or center of veins that directly or indirectly drain a vast area
Assist in the movement and functioning of the tongue
4th week
Forms into the inner lining of the oral cavitiy and enamel of the teeth

28. Central Incisor
9 weeks thru birth
Digstric - Mylohyoid - stylohyoid - geniohyoid
A junction or center of veins that directly or indirectly drain a vast area
Middle two teeth in the mouth

29. Morpho Differentiation
The mandibular first premolar
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Forming organ takes shape and resembles the shape of a bell
Triferacated

30. Fossa
Rounded depression on a tooth
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Bi-cuspids
To bulge of curve outward

31. Mandibular Artery
Middle line of the teeth
Located behind the ramus of the mandible and branches into five arteries
Three cusps/ trifurcated
A junction or center of veins that directly or indirectly drain a vast area

32. Fimbriated Folds
Folds of tissue to the the lingual veins
Wearing away of the incisal or occlusal surfaces of the tooth
Where the proximal sides of two teeth come together and touch
A triangular area located behind the last molar

33. Function of Hyoglossus
Dentin found between the tubules
Depresses the tongue
Week 11
The crown of the tooth that is nearest the incisal edge near the anterior tooth

34. Intertubular Dentin
Cheek bones--the most breakable bone in the body
Orbicularis oris - buccinator - mentalis - zygomatic major
Digstric - Mylohyoid - stylohyoid - geniohyoid
Dentin found between the tubules

35. Incisive Arteries
12 years
Supplies blood to the roots and periodontal ligaments of the interior teeth
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
A junction or center of veins that directly or indirectly drain a vast area

36. Filiform Papillae
Formed by the fibroblast cells and secures the tooth in the socket
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Synovial fluid
1500 millimeters

37. Cusps
The largest of three openings located in the posterior region of the hard palate
Mandibular central incisors
Pointed or rounded mounds on the crown of the tooth
The cornerstone of the mouth

38. Common Carotid
Located in a depressed area between the pillars
Curve outward
Arteries supplying blood to most of the head and the neck
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue

39. Stomedeum
The tip of the chin
Trigeminal - facial - glossopharyngeal - hypoglossal
Composed of mucosa and surrounds the necks of the teeth
Primitive mouth

40. Palatine Rugae
Extends from the mucogingival junction to the gingival groove
Intervating the anterior teeth and the labial gingiva
Located behind the ramus of the mandible and branches into five arteries
The ridges that run horizontally across the hard palate behind the incisive papilla

41. Purpose of premolars
The cornerstone of the mouth
The study of the microscopic structure and functions of tissues
Used to pulverize food
Study of the structure and form of the teeth

42. Mental Artery
To lubricate the oral cavity and to moisten food
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Disk that acts like a cushion between the temporal bone and the condyloid process
Opening in the mouth below the orbit on the maxillary bone

43. Fetus
Found only in multi-rooted teeth and resists rotational forces
9 weeks thru birth
Developmental segment of a tooth
2 small raised folds of tissue where the lingual frenum attaches

44. Mandibular Foramen
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Small yellowish glands on the labial mucosa
Located on the inside of the body of the ramus
Disk that acts like a cushion between the temporal bone and the condyloid process

45. Resonance
Supportive fibers that anchor the tooth to the bone
Mastication - aids in speech - influence facial structure - chewing surfaces
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Full deep rich sound in nasal cavity

46. How many cusps does the second bicuspid have?
Supplies blood to the roots and periodontal ligaments of the interior teeth
Act to maintain the gingival integrity of the marginal gingiva
Assists in elevating the chin
Two

47. What are the largest and strongest of the mandibular teeth
Portion of the root seen in the oral cavity
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
The mandibular molars
Developmental segment of a tooth

48. What are the 4 extrinsic muscles of the tongue
A condition where the lower frenum attachment is very short/DDS/frenectomy
Genioglossus - hyoglossus - styloglossus - palatoglossus
Drains the facial structures beginning near the eye and descending toward the mandible
Compact bone plate of the facial and lingual surfaces

49. Parotid Papilla
Assists in elevating the chin
Portion of the lips that are red
A flap of tissue on the on the buccal mucosa
Elevated are of enamel that forms the Mesial and distal borders

50. What are the 2 sets of teeth?
Two cortical bone plates that come together between each tooth
Incremental lines around the layers of the enamel matrix
Primary and permanent
The portion of the tooth that meets the gingiva

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Dental Assisting: Head And Neck Anatomy

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