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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. Attached Gingiva
Lining covers inside of the oral cavity
When cells rapidly increase in number
Extends from the mucogingival junction to the gingival groove
Healthy gingival tissue with an orange texture

2. Function of Styloglossus
Enamel forming cells
Retracts the tongue and raises the tip of the tongue
Study of prenatal growth and the developing process of an individual
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles

3. What are the four main functions of deciduous teeth?
Mastication - aids in speech - influence facial structure - chewing surfaces
Short tubules that seem to crossover to the enamel
Cells develop into different tissues
The inner surface of the lips

4. Convects
Growth from the oral epithelium that gives rise to the tooth buds
Forms a large cavity above the roots of the maxillary molars
Curve outward
Joined at the midline and are often referred to as the median Palatine suture

5. Fissure
Resulting from an imperfect union where the lobes come together
Two weeks thru 8th week
Forms a large cavity above the roots of the maxillary molars
Opening for the ear

6. Gingival Sulcus
Interdental ligament
Maxillary first molar
A flap of tissue on the on the buccal mucosa
The space between the unattached gingiva and the tooth

7. Secondary Dentin
The layer of dentin that surrounds the pulp
Resists intrusive forces that try to push the tooth inwards
Convex area on the lingual surface near gingiva
Forms after the completion of the apical foramen

8. Function of Stylohyoid
Small bony projections surrounding the lingual foramen
Draws the hyoid bone superiorly and posteriorly and stabilizes it
An extension of an unattached gingiva and the tooth
Growth from the oral epithelium that gives rise to the tooth buds

9. Fetus
Assists in elevating the chin
Drains the facial structures beginning near the eye and descending toward the mandible
9 weeks thru birth
Excess dryness of the mouth

10. How many cusps does the second bicuspid have?
Located on the inside of the body of the ramus
A condition where the lower frenum attachment is very short/DDS/frenectomy
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Two

11. Supplemental Groove
Enamel forming cells
Radiates from the developmental groove
The study of the microscopic structure and functions of tissues
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein

12. Convex
Platysma - trapezius - sternocleidomastoid
To bulge of curve outward
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
A flap of tissue on the on the buccal mucosa

13. Mixed Dentition
Full deep rich sound in nasal cavity
Two
Causes a thickening of the cementum around the apex
A period of both primary teeth and permeant teeth are in the dentition

14. Deep Facial Veins
Separates the developing oral cavities from the nasal cavities
Forming organ takes shape and resembles the shape of a bell
Primitive mouth
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins

15. Mesenchyme Tissue
Disk that acts like a cushion between the temporal bone and the condyloid process
Mucosa that covers the alveolar bone
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Pointed or rounded mounds on the crown of the tooth

16. What are the 3 branches of the mandibular nerve branch?
The tip of the chin
Origin - fixed point - insertion - movable point
Buccal - lingual - and inferior alveolar
Week 11

17. How is the TMJ supported and what controls their movement?
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Primary and permanent
Ligaments and muscles of mastication
Surface towards the midline

18. What ligament is retained the longest during periodontal disease?
A faint line going from the ala of the nose to the corner of the mouth
To bulge of curve outward
Interdental ligament
Portion covered with cementum

19. Caruncle
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Molars
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Fleshy elevation under the tongue

20. What is the maxillary cuspid known as?
The cornerstone of the mouth
The connective tissue of the marginal gingiva
Chewing and swallowing food
A line that represents the alveolus bone lining the socket

21. Embrasure
Small raised projections where taste buds are located
The connective tissue of the marginal gingiva
Triangular space in the gingival direction when two adjacent teeth are in contact
Assists in elevating the chin

22. Embryology
Study of prenatal growth and the developing process of an individual
Substances between cells
Drains the facial structures beginning near the eye and descending toward the mandible
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth

23. Landmarks
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Platysma - trapezius - sternocleidomastoid
Elevated are of enamel that forms the Mesial and distal borders
Study of the structure and form of the teeth

24. Maxillary Tuberosity
The teeth located at the back of the mouth
Buccal - lingual - and inferior alveolar
Occlusal surface of the posterior tooth
A rounded area beyond the last posterior maxillary tooth

25. Maxillary Nerve Branch
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Covering over the enamel that is left over from the epithelium ameloblasts
Synovial fluid
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct

26. Gland
Cluster of tissue that manufactures and secrets fluid
Assists in elevating the chin
9 weeks thru birth
No bicuspids/ no 3rd molars

27. Gingiva
The study of the microscopic structure and functions of tissues
Upper arch of the teeth
Composed of mucosa and surrounds the necks of the teeth
Enamel is thinner - pulp chamber is smaller -

28. How many cusps/ roots do the maxillary first molars have?
Two vertical extensions of the mandible
Permeante teeth replace the primary teeth
4/5 cusps/ 3 roots
A bat shaped bone which forms the anterior portion of the skull

29. What are the 3 branches of the pterygopalatine nerve branch?
Arteries supplying blood to most of the head and the neck
Bone that surrounds the root of the tooth
What divides the tongue in half and runs from the base to the tip of the tongue
Greater - lesser - naso palatine nerves

30. What is the purpose of saliva?
Circle and tighten the gingival margin around the neck of the tooth
To lubricate the oral cavity and to moisten food
Cheek bones--the most breakable bone in the body
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins

31. Cortical Bone
Compact bone plate of the facial and lingual surfaces
Quarters of the teeth
Two vertical extensions of the mandible
Wearing away of the incisal or occlusal surfaces of the tooth

32. Pit
A triangular area located behind the last molar
Assist in depressing the mandible and elevating the tongue
Place where the groove comes together or fissures cross
Buccal - lingual - and inferior alveolar

33. How many cusps/ roots do the 2/3rd mandibular molars have?
A pocket formed by the soft tissue of cheeks and gingiva
4 cusps/ bifurcated
Opening in the mouth below the orbit on the maxillary bone
The mandibular molars

34. Tome's process
Responsible for laying down the enamel matrix into place
Forms a large cavity above the roots of the maxillary molars
Triferacated
Radiates from the developmental groove

35. Circular Ligament Fiber Groups
Circle and tighten the gingival margin around the neck of the tooth
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Portion of the lips that are red
Forming organ takes shape and resembles the shape of a bell

36. What teeth are removed if overcrowding occurs?
Bony projection found on the bottom border of the temporal bone
Cluster of tissue that manufactures and secrets fluid
Small curved lines that run parellel to the CEJ
Bicuspids

37. Contour Lines of Owen
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Fleshy elevation under the tongue
Teeth after cuspids
Demonstrates a disturbance in the body metabolism

38. Foliate Papillae
Draws down the mandible and corners of the mouth
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Raised vertical folds of tissue on the lateral border of the tongue

39. Philtrum
Vertical groove on the midline of the upper lip
When cells rapidly increase in number
The largest of the salivary glands which lie just below and in front of the ear
Orbicularis oris - buccinator - mentalis - zygomatic major

40. Parotid Papilla
Triferacated
4 cusps/ bifurcated
Forms after the completion of the apical foramen
A flap of tissue on the on the buccal mucosa

41. Cyto differentiation
The development of different cells
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Separates the developing oral cavities from the nasal cavities

42. Lingual Veins
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Bluish veins that run the length of the tongue
A triangular area located behind the last molar
Drains the facial structures beginning near the eye and descending toward the mandible

43. Morphology
Study of the structure and form of the teeth
4 cusps/ bifurcated
Convex area on the lingual surface near gingiva
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

44. Develop Mental Groove
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Formed by the uniting of lobes during development of crown
Portion of the root seen in the oral cavity
Opening in the mouth below the orbit on the maxillary bone

45. Buccal
Outside surface Which is towards the cheek - on posterior teeth
Divides the crown and the root
Allow flexibility during mastication - speech
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen

46. Anterior Alveolar Nerve
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Small raised projections where taste buds are located
Surface towards the midline
The first predentin that is formed and matures within the tube

47. Neonatal line
A small projection in the middle of the upper lip
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Incremental line indicating trauma of birth
Assist in the movement and functioning of the tongue

48. Primary palate
2 small raised folds of tissue where the lingual frenum attaches
Separates the developing oral cavities from the nasal cavities
Chewing and swallowing food
Small bony projections surrounding the lingual foramen

49. Cusps
6 years old
Pointed or rounded mounds on the crown of the tooth
Largest of the branches of the external carotid artery; supplies facial structure
Supplies blood to the roots and periodontal ligaments of the molars and premolars

50. Gingival Groove
The line of demarcation between the attached gingiva and the marginal gingiva
Separation of the upper lip ( 1 of 1000 live births)
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Oval depression of temporal bone in condyloid process