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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. Odontal Fiber Groups
Teeth after cuspids
Allow flexibility during mastication - speech
Buccal - lingual - and inferior alveolar
Anterior to the ethmoid bone and part of the orbit (corners of the eye)

2. Pulp Stones
Calcified masses of dentin
The cornerstone of the mouth
A line of demarcation between the attached gingiva and alveolar mucosa
Shaping the tongue during speech - mastication and swallowing

3. Gestational period
9 months (5 months ultrasound to tell sex)
An enclosed area that matures into dentin - cementum and pulp
Drains the floor of the mouth
A condition where the lower frenum attachment is very short/DDS/frenectomy

4. What is saliva made of?
H20 - mucin - organic salts and digestive enzymes
Three bulges on the incisal edge
Upper arch of the teeth
What divides the tongue in half and runs from the base to the tip of the tongue

5. Mesenchyme Tissue
Small grooves noted on some teeth
Cells From which connective tissue evolve
Forms the bulk of the tooth
Primary embryonic mesoderm layer that develops during the morpho differentiation period

6. What are the characteristics of deciduous teeth?
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Curve outward
Ligaments and muscles of mastication
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider

7. Meniscus
Surface towards the midline
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Disk that acts like a cushion between the temporal bone and the condyloid process
Study of the structure and form of the teeth

8. Labial
Extends from the medial corner of the eye to the nasal cavity
Outside surface Which is towards the lips
An extension of an unattached gingiva and the tooth
A period of both primary teeth and permeant teeth are in the dentition

9. Vermilion Border
Portion of the lips where the skin meets the vermilion zone
The largest of the salivary glands which lie just below and in front of the ear
A bat shaped bone which forms the anterior portion of the skull
Extreme variations from the norm

10. Facial Vein
Cut - tear - and grind food
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Largest division of the trigeminal nerve
Drains the facial structures beginning near the eye and descending toward the mandible

11. How much saliva is produced daily?
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Pulls the hyoid bone and the tongue anteriorly
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
1500 millimeters

12. Frenum
Buccal - lingual - and inferior alveolar
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Cells From which connective tissue evolve
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10

13. Pulpitis
When the tissue becomes inflamed
Middle two teeth in the mouth
Intervating the anterior teeth and the labial gingiva
Arteries supplying blood to most of the head and the neck

14. Apposition
Arteries supplying blood to most of the head and the neck
Mandibular central incisors
Calcium salts are deposited into formed tooth
A small projection in the middle of the upper lip

15. Function of Styloglossus
Shed from the oral cavity
Tubules that pass through the entire surface of the dentin
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Retracts the tongue and raises the tip of the tongue

16. Maxillary Artery
32
Cut - tear - and grind food
Formed by the fibroblast cells and secures the tooth in the socket
Largest of the branches of the external carotid artery; supplies facial structure

17. Foliate Papillae
Raised vertical folds of tissue on the lateral border of the tongue
Study of prenatal growth and the developing process of an individual
Hinge motion and gliding movement
Cells develop into different tissues

18. Retromolar Area
A triangular area located behind the last molar
An extension of an unattached gingiva and the tooth
Cheek bones--the most breakable bone in the body
Vertical groove on the midline of the upper lip

19. Interdental Gingiva
Depresses the tongue
Small yellowish glands on the labial mucosa
An extension of an unattached gingiva and the tooth
Small bony projections surrounding the lingual foramen

20. Convects
Layers of tooth tissue become calcified
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Curve outward
The development of different forms

21. Imbrication lines
Retracts or depresses the tongue
Formed by the fibroblast cells and secures the tooth in the socket
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Forms into the inner lining of the oral cavitiy and enamel of the teeth

22. Maxilla
Orbicularis oris - buccinator - mentalis - zygomatic major
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Largest facial bone with two sections joined at the median suture
Extends from the medial corner of the eye to the nasal cavity

23. Fissure
Forms into dentin - cementum and pulp of the teeth
Duct located on the parotid papilla
Resulting from an imperfect union where the lobes come together
Elevated are of enamel that forms the Mesial and distal borders

24. Cingulum
Week 12
Joined at the midline and are often referred to as the median Palatine suture
A small projection in the middle of the upper lip
Convex area on the lingual surface near gingiva

25. Mental Nerve Branch
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Largest division of the trigeminal nerve
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Small raised projections where taste buds are located

26. Incisal third
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
The portion of the tooth that meets the gingiva
Where the ectoderm layer matures into the enamel

27. Sharpey's Fibers
Acts as anchors between the alveolar bone and the tooth
Hinge motion and gliding movement
Small head - low nasal bridge - thin upper lip - small mandible
6 months/3years

28. Central Incisor
Middle two teeth in the mouth
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
The largest of three openings located in the posterior region of the hard palate

29. Primary palate
Separates the developing oral cavities from the nasal cavities
Cluster of tissue that manufactures and secrets fluid
Tissue fluid surrounding the cell membrane of the odontoblast
Platysma - trapezius - sternocleidomastoid

30. Anterior Tonsillar Pillar
Study of the structure and form of the teeth
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Two vertical extensions of the mandible
Drains the superficial veins of the face and neck into the subclavian vein

31. What are the three muscles of the neck?
Pointed elongations of the pulp
Platysma - trapezius - sternocleidomastoid
Study of the structure and form of the teeth
H20 - mucin - organic salts and digestive enzymes

32. Lesser Palatine Foramen
Tubules that pass through the entire surface of the dentin
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Set of arches found farther in the back of the throat
Bifurcated/ 5 cusps

33. When does the maxillary second molar erupt?
12 years
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Substances between cells

34. Function of Geneoglossus?
Drains the superficial veins of the face and neck into the subclavian vein
The largest of the salivary glands which lie just below and in front of the ear
Retracts or depresses the tongue
Composed of mucosa and surrounds the necks of the teeth

35. Anterior Alveolar Nerve
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Elevated are of enamel that forms the Mesial and distal borders
Small bony projections surrounding the lingual foramen

36. Torus Mandibularis
Excess bone formations under the tongue on the alvellar bone
Forming organ takes shape and resembles the shape of a bell
Third tooth from the midline
The mandibular molars

37. What are the eight landmarks of the face?
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Band of fibrous tissue which attaches muscle to bone
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
A raised white line that runs parallel to where the teeth meet on the buccal mucosa

38. What is the purpose of saliva?
Rounded depression on a tooth
Disk that acts like a cushion between the temporal bone and the condyloid process
Extends from the mucogingival junction to the gingival groove
To lubricate the oral cavity and to moisten food

39. Mandible Arch
Of or pertaining to area surrounding naval cavity
Assist in depressing the mandible and elevating the tongue
Lower arch of the teeth
Intervating the anterior teeth and the labial gingiva

40. Palatine Bones
Aid in attaching the gingiva to the alveolar bone
Joined at the midline and are often referred to as the median Palatine suture
Incremental lines around the layers of the enamel matrix
Looking at the border of the tongue

41. Ectoderm
Outside surface Which is towards the lips
The line of demarcation between the attached gingiva and the marginal gingiva
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Quarters of the teeth

42. Pulp horns
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Week 12
Tubules that pass through the entire surface of the dentin
Pointed elongations of the pulp

43. Duct
Canal or passage for fluid
Arteries supplying blood to most of the head and the neck
Located in a depressed area between the pillars
Supplies blood to the roots and periodontal ligaments of the interior teeth

44. Infraorbital Foramen
Short tubules that seem to crossover to the enamel
Opening in the mouth below the orbit on the maxillary bone
The cornerstone of the mouth
Smaller branch that ennervates the soft palate uvula and tonsils

45. Ala of the Nose
Resist rotational forces and hold teeth in inter-proximal contact
Natural teeth in position
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
The outer edge of the nostril

46. Pterygoid Process
Respiratory system - digestive system and glandular organs
Wings of the sphenoid bone
Study of the structure and form of the teeth
Located behind the ramus of the mandible and branches into five arteries

47. Intertubular Dentin
Small yellowish glands on the labial mucosa
Dentin found between the tubules
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
Shaping the tongue during speech - mastication and swallowing

48. Muscle origine
An overgrowth of the gingival tissue
The fixed attachment of a muscle
An enclosed area that matures into dentin - cementum and pulp
An extension of an unattached gingiva and the tooth

49. Stomedeum
Surface away from the midline
Opening for the ear
Primitive mouth
Inner portion of the enamel rod

50. Contact Area
Trigeminal - facial - glossopharyngeal - hypoglossal
A rounded area beyond the last posterior maxillary tooth
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