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Dental Assisting: Head And Neck Anatomy

Subjects : health-sciences, dentistry

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

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. Stensens' Duct (aka Parotid)

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2. Common Carotid
Aid in attaching the gingiva to the alveolar bone
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
The fixed attachment of a muscle
Arteries supplying blood to most of the head and the neck

3. Philtrum
A shallow v-shaped depression located below the bottom of the nose and above the lips
The layer of dentin that surrounds the pulp
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
Drains the facial structures beginning near the eye and descending toward the mandible

4. Greater Palatine Nerve
When the surface of the teeth becomes grooved
Arteries supplying blood to most of the head and the neck
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Inside surface Which is towards the tongue - on anterior teeth

5. Maxillary Nerve Branch
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
A condition where the lower frenum attachment is very short/DDS/frenectomy
What divides the tongue in half and runs from the base to the tip of the tongue
Demonstrates a disturbance in the body metabolism

6. What is the longest tooth in the mandibular arch?
The mandibular first premolar
Oval structures that are located on the dorsal surface of the tongue
The groove below the lower lips that separates the lips from the chin
Permeante teeth replace the primary teeth

7. What kind of root does the maxillary first molar have?
Quarters of the teeth
The space between the unattached gingiva and the tooth
Linear elevation of the tooth
Triferacated

8. What are the 4 taste senses and where are they located?
Forming organ takes shape and resembles the shape of a bell
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue

9. What is the purpose of saliva?
The disc becomes displaced
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
To lubricate the oral cavity and to moisten food
Follows the length of the body of the mandible past the last tooth and up to the ramus

10. Contact Area
Where the proximal sides of two teeth come together and touch
Tooth emerges from gum tissue and becomes visible
The connective tissue of the marginal gingiva
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate

11. What ligament is retained the longest during periodontal disease?
Surface away from the midline
Interdental ligament
Scroll like bones outside the nasal cavaties
Tubules that pass through the entire surface of the dentin

12. Incisive Nerve branch
Intervating the anterior teeth and the labial gingiva
Drains the superficial veins of the face and neck into the subclavian vein
Located behind the ramus of the mandible and branches into five arteries
Study of prenatal growth and the developing process of an individual

13. Circular Ligament Fiber Groups
Circle and tighten the gingival margin around the neck of the tooth
Ligaments and muscles of mastication
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Oval structures that are located on the dorsal surface of the tongue

14. What are the 4 cranial nerves that ennervate the face and oral cavity
Small dark brushes
A flap of tissue on the on the buccal mucosa
Trigeminal - facial - glossopharyngeal - hypoglossal
Two cortical bone plates that come together between each tooth

15. Attached Gingiva
Indented
Extends from the mucogingival junction to the gingival groove
Arteries supplying blood to most of the head and the neck
An enclosed area that matures into dentin - cementum and pulp

16. What are the 12 landmarks of the oral cavity?

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17. Ridge
Two vertical extensions of the mandible
Linear elevation of the tooth
The bone that separates the root on a tooth
Initiation of the tooth begins

18. Clinical root
Bony projection found on the bottom border of the temporal bone
Portion of the root seen in the oral cavity
Moves the head backward and laterally
Healthy gingival tissue with an orange texture

19. Symphysis
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Drains the superficial veins of the face and neck into the subclavian vein
Depresses the tongue
Canal or passage for fluid

20. Denticion
Second teeth next to central incisors
Small grooves noted on some teeth
A bony projection that separates each socket
Natural teeth in position

21. Exfoliated
Supplies blood to the brain and the eyes
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Shed from the oral cavity
Tissue covering the alveolar processes

22. Lateral Incisor
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Narrow long enamel tuft
Second teeth next to central incisors
Mucosa that covers the alveolar bone

23. Primary palate
Canal or passage for fluid
Covers muscle tissue in the posterior portion of the palate
Separates the developing oral cavities from the nasal cavities
The fixed attachment of a muscle

24. Frenum
Short tubules that seem to crossover to the enamel
A shallow v-shaped depression located below the bottom of the nose and above the lips
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
An extension of an unattached gingiva and the tooth

25. Succedaneous teeth
A bat shaped bone which forms the anterior portion of the skull
1500 millimeters
Raised vertical folds of tissue on the lateral border of the tongue
Permeante teeth replace the primary teeth

26. Labial
A dense tissue covered with mucous membrane that can withstand chewing
The mandibular molars
Outside surface Which is towards the lips
Duct located on the parotid papilla

27. Mantle Dentin
(free gingiva) surrounds the teeth
The study of the microscopic structure and functions of tissues
The first predentin that is formed and matures within the tube
Located on the inside of the body of the ramus

28. Maxillary Tuberosity
A rounded area beyond the last posterior maxillary tooth
Small dark brushes
Two vertical extensions of the mandible
Indented

29. Labial Commissures
Short tubules that seem to crossover to the enamel
6 months/3years
Origin - fixed point - insertion - movable point
The corners of the mouth where the top and bottom lip meet

30. What are the four main functions of deciduous teeth?
Mastication - aids in speech - influence facial structure - chewing surfaces
To lubricate the oral cavity and to moisten food
Pulverizing or chewing surface
A line of demarcation between the attached gingiva and alveolar mucosa

31. Gestational period
9 months (5 months ultrasound to tell sex)
Hinge motion and gliding movement
Appears to be loosely attached - covering the alveolar bone.
Occlusal surface of the posterior tooth

32. Intercellular Substances
Substances between cells
Bi-cuspids
Draws down the mandible and corners of the mouth
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth

33. Which molar is the wisdom tooth
Maxillary third molar
Calcium salts are deposited into formed tooth
The development of different forms
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)

34. Apposition
6 years old
Oval depression of temporal bone in condyloid process
The cornerstone of the mouth
Calcium salts are deposited into formed tooth

35. Hyoid Bone
Resists intrusive forces that try to push the tooth inwards
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
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth

36. Dentogingival Fiber Groups
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Cut - tear - and grind food
Resists forces that try to pull the tooth outward
Act to maintain the gingival integrity of the marginal gingiva

37. What are the 3 branches of the mandibular nerve branch?
Shaping the tongue during speech - mastication and swallowing
Buccal - lingual - and inferior alveolar
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
An enclosed area that matures into dentin - cementum and pulp

38. Interdental Gingiva
Disk that acts like a cushion between the temporal bone and the condyloid process
Separates the developing oral cavities from the nasal cavities
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
An extension of an unattached gingiva and the tooth

39. What are the 4 muscles of the floor of the mouth?
Digstric - Mylohyoid - stylohyoid - geniohyoid
When the dentin is exposed
The inner surface of the lips
Surface towards the midline

40. Function of Sternocleidomastoid
Assists in elevating the chin
Interdental ligament
An enclosed area that matures into dentin - cementum and pulp
Drains the maxiallary artery and superficial temporal arteries

41. Gingiva
The inner surface of the cheeks
Causes a thickening of the cementum around the apex
A dense tissue covered with mucous membrane that can withstand chewing
A pocket formed by the soft tissue of cheeks and gingiva

42. What are the only permeant teeth that are not succedaneous?
Molars
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Middle line of the teeth
Maxillary third molar

43. What are the 4 pairs of muscles of mastication!
Radiates from the developmental groove
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Function to resist rotational forces and tilting
To dissolve

44. Dental Lamina
Growth from the oral epithelium that gives rise to the tooth buds
Initiation of the tooth begins
Week 12
Week 11

45. What are the 4 extrinsic muscles of the tongue
Full deep rich sound in nasal cavity
Genioglossus - hyoglossus - styloglossus - palatoglossus
Appears to be loosely attached - covering the alveolar bone.
Drains the superficial veins of the face and neck into the subclavian vein

46. 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
Orbicularis oris - buccinator - mentalis - zygomatic major
Joined at the midline and are often referred to as the median Palatine suture
Function to resist rotational forces and tilting

47. Taste Buds
Extreme variations from the norm
Oval structures that are located on the dorsal surface of the tongue
Retracts the tongue and raises the tip of the tongue
Indented

48. Mesenchyme Tissue
Teeth will not erupt in proper position
Formed by the fibroblast cells and secures the tooth in the socket
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Lower arch of the teeth

49. Submandibular Glands

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50. Mandible Arch
Formed by the uniting of lobes during development of crown
Lower arch of the teeth
Portion of the root seen in the oral cavity
Convex area on the lingual surface near gingiva