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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. How much saliva is produced daily?
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Forms into dentin - cementum and pulp of the teeth
1500 millimeters
10 days

2. Secondary Dentin
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
4th week
Forms after the completion of the apical foramen
Depresses the tongue

3. Fossa
Drains the Pterygoid plexus of the veins
Pointed or rounded mounds on the crown of the tooth
Rounded depression on a tooth
Inner portion of the enamel rod

4. Mental Nerve Branch
Largest division of the trigeminal nerve
Oval depression of temporal bone in condyloid process
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
Mandibular central incisors

5. Distal
When the tissue becomes inflamed
Surface away from the midline
Supplies blood to the brain and the eyes
A pocket formed by the soft tissue of cheeks and gingiva

6. Interdental Ligament Group
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
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Lower arch of the teeth
Resist rotational forces and hold teeth in inter-proximal contact

7. Anomalies
When the tissue becomes inflamed
Portion of the root seen in the oral cavity
Extreme variations from the norm
Assist in depressing the mandible and elevating the tongue

8. Develop Mental Groove
Elevated are of enamel that forms the Mesial and distal borders
Formed by the uniting of lobes during development of crown
(free gingiva) surrounds the teeth
Linear elevation of the tooth

9. What is saliva made of?
H20 - mucin - organic salts and digestive enzymes
Developmental segment of a tooth
A condition where the lower frenum attachment is very short/DDS/frenectomy
Narrow long enamel tuft

10. What are the three muscles of the neck?
A dense tissue covered with mucous membrane that can withstand chewing
Formed by the uniting of lobes during development of crown
Platysma - trapezius - sternocleidomastoid
The largest of three openings located in the posterior region of the hard palate

11. When do the tooth buds appear?
Week 11
Occurs in unusual ways and distorted crowns may appear
The development of different cells
Separates the developing oral cavities from the nasal cavities

12. Mantle Dentin
Inside of the maxillary teeth
The first predentin that is formed and matures within the tube
Sharp projection on the under surface of the temporal bone
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone

13. How many cusps/ roots do the 2/3rd maxillary molars have?
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Full deep rich sound in nasal cavity
Used to pulverize food
Three cusps/ trifurcated

14. What is the latin word for molar?
Inner portion of the enamel rod
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Molaris meaning millstone
To bulge of curve outward

15. Vermilion Border
Portion covered with cementum
Retracts or depresses the tongue
Portion of the lips where the skin meets the vermilion zone
Small dark brushes

16. Cuspid
Drains the superficial veins of the face and neck into the subclavian vein
Assist in depressing the mandible and elevating the tongue
The cornerstone of the mouth
Third tooth from the midline

17. Xygote
When the tissue becomes inflamed
Band of fibrous tissue which attaches muscle to bone
Covering over the enamel that is left over from the epithelium ameloblasts
When cells rapidly increase in number

18. Gland
Cheek bones--the most breakable bone in the body
Pulverizing or chewing surface
Separates the developing oral cavities from the nasal cavities
Cluster of tissue that manufactures and secrets fluid

19. Eruption
Demonstrates a disturbance in the body metabolism
Tooth emerges from gum tissue and becomes visible
Responsible for laying down the enamel matrix into place
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue

20. Maxillary Arch
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Draws down the mandible and corners of the mouth
Aid in attaching the gingiva to the alveolar bone
Upper arch of the teeth

21. Inferior Alveolar Artery
Set of arches found farther in the back of the throat
The teeth located at the back of the mouth
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Draws down the mandible and corners of the mouth

22. Interradicular Septum
Allow flexibility during mastication - speech
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Bifurcated/ 5 cusps
The bone that separates the root on a tooth

23. Dental Lamina
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Compact bone plate of the facial and lingual surfaces
Canal or passage for fluid
Growth from the oral epithelium that gives rise to the tooth buds

24. Mesoderm
Portion of the lips where the skin meets the vermilion zone
Triangular space in the gingival direction when two adjacent teeth are in contact
Origin - fixed point - insertion - movable point
Forms into dentin - cementum and pulp of the teeth

25. Mesenchyme Tissue
The study of the microscopic structure and functions of tissues
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Excess bone in the middle of the palate
Rounded depression on a tooth

26. Xygomatic bones
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Cheek bones--the most breakable bone in the body
Excess bone in the middle of the palate
Indented

27. Calcification
Layers of tooth tissue become calcified
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Week 11
Tissue covering the alveolar processes

28. Middle Superior Alveolar Nerve
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Study of the structure and form of the teeth
Secrete saliva to assist in process of digestion
10 days

29. Buccal Mucosa
The inner surface of the cheeks
A pocket formed by the soft tissue of cheeks and gingiva
Portion of the lips that are red
Looking at the border of the tongue

30. Cemental Spurs
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
Where the proximal sides of two teeth come together and touch
Largest of the branches of the external carotid artery; supplies facial structure
Found near the cementoenamel junction

31. Gestational period
4/5 cusps/ 3 roots
Primary and permanent
9 months (5 months ultrasound to tell sex)
Extends from the medial corner of the eye to the nasal cavity

32. Primary palate
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Separates the developing oral cavities from the nasal cavities
Located behind the ramus of the mandible and branches into five arteries
Cheek bones--the most breakable bone in the body

33. Dentogingival Fiber Groups
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Act to maintain the gingival integrity of the marginal gingiva
Bi-cuspids

34. What are the two muscles of the soft palate?
Palatoglossus - palatopharyngeal
Supplies blood to the roots and periodontal ligaments of the molars and premolars
What divides the tongue in half and runs from the base to the tip of the tongue
Supplies blood to the face and oral cavity

35. What are the 4 pairs of muscles of mastication!
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Week 12
The inner surface of the lips
Formed by the uniting of lobes during development of crown

36. Nasal-Labial Groove
A faint line going from the ala of the nose to the corner of the mouth
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Calcium salts are deposited into formed tooth
Largest division of the trigeminal nerve

37. Maxillary Tuberosity
Mucosa that covers the alveolar bone
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
A rounded area beyond the last posterior maxillary tooth
Secrete saliva to assist in process of digestion

38. Tome's process
Responsible for laying down the enamel matrix into place
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
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Outside surface Which is towards the cheek - on posterior teeth

39. Apposition
Calcium salts are deposited into formed tooth
Looking at the border of the tongue
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Pointed elongations of the pulp

40. Concave
Place where the groove comes together or fissures cross
32
Indented
Retracts the tongue and raises the tip of the tongue

41. Mylohyoid Artery
The bone that separates the root on a tooth
Mastication - aids in speech - influence facial structure - chewing surfaces
A small projection in the middle of the upper lip
Branches off the inferior alveolar artery before intering the mandibular canal

42. Alveolar Mucosa
Inner portion of the enamel rod
Mucosa that covers the alveolar bone
Largest facial bone with two sections joined at the median suture
Constricts the nasopharyngeal passage and elevates the larynx

43. Neonatal line
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Incremental line indicating trauma of birth
9 months (5 months ultrasound to tell sex)
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth

44. Sulingual Folds
The mandibular molars
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
Week 11
Platysma - trapezius - sternocleidomastoid

45. Enamel Dysplasia
A dense tissue covered with mucous membrane that can withstand chewing
Excess bone formations under the tongue on the alvellar bone
Pulverizing or chewing surface
When the surface of the teeth becomes grooved

46. Peritubular Dentin
Creates the wall of the dentinal tubule
Largest facial bone with two sections joined at the median suture
Teeth will not erupt in proper position
The area on the crown of the tooth that is nearest the gingival

47. Cleft Uvula
Mildest form of cleft palate
Platysma - trapezius - sternocleidomastoid
Bicuspids
A flap of tissue on the on the buccal mucosa

48. Groove
Intervating the anterior teeth and the labial gingiva
Small linear depression
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Calcium salts are deposited into formed tooth

49. Parotid Papilla
A flap of tissue on the on the buccal mucosa
Found only in multi-rooted teeth and resists rotational forces
Canal or passage for fluid
A small projection in the middle of the upper lip

50. What are the 4 muscles of the floor of the mouth?
When the tissue becomes inflamed
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Triferacated
Digstric - Mylohyoid - stylohyoid - geniohyoid