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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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1. Apical Fiber Group
Resists forces that try to pull the tooth outward
Draws down the mandible and corners of the mouth
Raised vertical folds of tissue on the lateral border of the tongue
The deepest point of the vestibule

2. What is another name for premolars?
Depresses the tongue
Bi-cuspids
Small grooves noted on some teeth
Two weeks thru 8th week

3. Succedaneous teeth
The line of demarcation between the attached gingiva and the marginal gingiva
Surface towards the midline
Drains the superficial veins of the face and neck into the subclavian vein
Permeante teeth replace the primary teeth

4. Landmarks
Portion of the root seen in the oral cavity
Molaris meaning millstone
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Inside surface Which is towards the tongue - on anterior teeth

5. Function of Stylohyoid
Small yellowish glands on the labial mucosa
The largest of three openings located in the posterior region of the hard palate
What divides the tongue in half and runs from the base to the tip of the tongue
Draws the hyoid bone superiorly and posteriorly and stabilizes it

6. Maxillary Artery
Largest of the branches of the external carotid artery; supplies facial structure
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Causes a thickening of the cementum around the apex

7. Gingiva
A dense tissue covered with mucous membrane that can withstand chewing
No bicuspids/ no 3rd molars
Growth from the oral epithelium that gives rise to the tooth buds
Bluish veins that run the length of the tongue

8. Function of Geniohyoid
Orbicularis oris - buccinator - mentalis - zygomatic major
Platysma - trapezius - sternocleidomastoid
Causes a thickening of the cementum around the apex
Pulls the hyoid bone and the tongue anteriorly

9. What are the characteristics of permanent teeth?
Inner portion of the enamel rod
Substances between cells
Enamel is thinner - pulp chamber is smaller -
Functions the same as the alveolar cfg; originate in alveolar bone

10. What is the longest tooth in the mandibular arch?
The mandibular first premolar
When cells rapidly increase in number
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth

11. Eruption
Tooth emerges from gum tissue and becomes visible
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Origin of the tooth
32

12. Lingual
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Inside surface Which is towards the tongue - on anterior teeth
Place where the groove comes together or fissures cross
Study of prenatal growth and the developing process of an individual

13. Where is the palate located?
The bone that separates the root on a tooth
Inside of the maxillary teeth
An extension of an unattached gingiva and the tooth
Substances between cells

14. Interdental Septum
Joined at the midline and are often referred to as the median Palatine suture
To bulge of curve outward
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
A bony projection that separates each socket

15. Perikymata
A horseshoe shaped groove that follow the curve of the dental arch
Corners of the mouth
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Small grooves noted on some teeth

16. Greater Palatine Foramen
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
The largest of three openings located in the posterior region of the hard palate
Drains the maxiallary artery and superficial temporal arteries
Act to maintain the gingival integrity of the marginal gingiva

17. Pit
Place where the groove comes together or fissures cross
Resist rotational forces and hold teeth in inter-proximal contact
Compact bone plate of the facial and lingual surfaces
Growth from the oral epithelium that gives rise to the tooth buds

18. Uvula
Act to maintain the gingival integrity of the marginal gingiva
A projection that extends off the back of the soft palate
Cells develop into different tissues
Cells From which connective tissue evolve

19. Nasal-Labial Groove
A faint line going from the ala of the nose to the corner of the mouth
Arteries supplying blood to most of the head and the neck
A horseshoe shaped groove that follow the curve of the dental arch
Drains the facial structures beginning near the eye and descending toward the mandible

20. Torus
Excess bone in the middle of the palate
Extends from the medial corner of the eye to the nasal cavity
The moveable attachment of the muscle
Week 12

21. Incisive Arteries
Follows the inside of the ramus and the body of the mandible
The line of demarcation between the attached gingiva and the marginal gingiva
Supplies blood to the roots and periodontal ligaments of the interior teeth
Platysma - trapezius - sternocleidomastoid

22. Intertubular Dentin
Act to maintain the gingival integrity of the marginal gingiva
Dentin found between the tubules
Small bony projections surrounding the lingual foramen
Fifth cusp located on the mesial surface lingual surface of maxillary first molars

23. Cleft Palate
Follows the inside of the ramus and the body of the mandible
The teeth located at the back of the mouth
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Interdental ligament

24. Taste Buds
Lower arch of the teeth
Oval structures that are located on the dorsal surface of the tongue
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
Found near the cementoenamel junction

25. Anterior Tonsillar Pillar
The development of different tissues
Cells From which connective tissue evolve
Folds of tissue that extend horizontally from the uvula to the base of the tongue
When the tissue becomes inflamed

26. What are the 3 branches of the mandibular nerve branch?
Buccal - lingual - and inferior alveolar
Week 12
Of or pertaining to area surrounding naval cavity
Demonstrates a disturbance in the body metabolism

27. Fossa
Oval structures that are located on the dorsal surface of the tongue
Draws down the mandible and corners of the mouth
Rounded depression on a tooth
Week 11

28. Deep Facial Veins
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Outside surface Which is towards the cheek - on posterior teeth
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins

29. What are the extrinsic muscles of the tongue responsible for?
Pulls the hyoid bone and the tongue anteriorly
Portion of the lips where the skin meets the vermilion zone
Located behind the ramus of the mandible and branches into five arteries
Assist in the movement and functioning of the tongue

30. Intercellular Substances
Scroll like bones outside the nasal cavaties
Orbicularis oris - buccinator - mentalis - zygomatic major
Middle line of the teeth
Substances between cells

31. Ridge
Dentin found between the tubules
Linear elevation of the tooth
Mucosa that covers the alveolar bone
4/5 cusps/ 3 roots

32. Dental Sac
Circle and tighten the gingival margin around the neck of the tooth
An enclosed area that matures into dentin - cementum and pulp
Small dark brushes
Extends from the medial corner of the eye to the nasal cavity

33. Hard Palate
Cluster of tissue that manufactures and secrets fluid
Incremental line indicating trauma of birth
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Week 12

34. Morpho Differentiation
The portion of the tooth that meets the gingiva
Sharp projection on the under surface of the temporal bone
Forming organ takes shape and resembles the shape of a bell
Extends from the mucogingival junction to the gingival groove

35. Cuspid
Third tooth from the midline
Draws down the mandible and corners of the mouth
20
Tooth emerges from gum tissue and becomes visible

36. Mental Artery
The teeth located at the back of the mouth
The slightly raised line extending down the middle of the hard palate
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
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

37. Mylohyoid Nerve Branch
Calcium salts are deposited into formed tooth
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Dentin found between the tubules
A projection that extends off the back of the soft palate

38. Function of Palatoglossus
Excess dryness of the mouth
Assist in depressing the mandible and elevating the tongue
Elevates the posterior portion of the tongue and narrows the fauces
Secrete saliva to assist in process of digestion

39. Enamel Lamellae
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Narrow long enamel tuft
Initiation of the tooth begins
Supportive fibers that anchor the tooth to the bone

40. Vermilion Zone
To bulge of curve outward
Portion of the lips that are red
Glands the size of a walnut that lie on the inside of the mandible and empty saliva into the mouth thru the Wharton's duct
Mucosa that covers the alveolar bone

41. External Auditory Meatus
Opening for the ear
The tip of the chin
To bulge of curve outward
Second teeth next to central incisors

42. How many roots/ cusps does the mandibular first molar have?
Dividing point of a multi-rooted tooth
Joined at the midline and are often referred to as the median Palatine suture
Bifurcated/ 5 cusps
Maxillary third molar

43. Meniscus
Disk that acts like a cushion between the temporal bone and the condyloid process
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
Bifurcated/ 5 cusps

44. Hyoid Bone
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Origin - fixed point - insertion - movable point
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
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface

45. Labial
Small head - low nasal bridge - thin upper lip - small mandible
Vertical groove on the midline of the upper lip
A triangular area located behind the last molar
Outside surface Which is towards the lips

46. What are the 4 maxillary nerve branches?
Cells develop into different tissues
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Cheek bones--the most breakable bone in the body
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids

47. Stomedeum
Primitive mouth
The deepest point of the vestibule
Convex area on the lingual surface near gingiva
9 weeks thru birth

48. Morpho differentiation
Intervating the anterior teeth and the labial gingiva
The development of different forms
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Demonstrates a disturbance in the body metabolism

49. Bud stage
Linear elevation of the tooth
The first predentin that is formed and matures within the tube
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Initiation of the tooth begins

50. Retro Mandibular Vein
Drains the maxiallary artery and superficial temporal arteries
A line that represents the alveolus bone lining the socket
Wearing away of the incisal or occlusal surfaces of the tooth
10 days

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Dental Assisting: Head And Neck Anatomy

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