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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.
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. Vestibule
A pocket formed by the soft tissue of cheeks and gingiva
9 weeks thru birth
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
Supplies blood to the face and oral cavity

2. Facial Vein
A period of both primary teeth and permeant teeth are in the dentition
Healthy gingival tissue with an orange texture
Drains the facial structures beginning near the eye and descending toward the mandible
The slightly raised line extending down the middle of the hard palate

3. Odontal Fiber Groups
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Growth from the oral epithelium that gives rise to the tooth buds
Allow flexibility during mastication - speech
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine

4. Anatomical root
The portion of the tooth that meets the gingiva
Portion covered with cementum
A horseshoe shaped groove that follow the curve of the dental arch
Divides the crown and the root

5. What are the 3 branches of the mandibular nerve branch?
Portion of the root seen in the oral cavity
Buccal - lingual - and inferior alveolar
Set of arches found farther in the back of the throat
Where the ectoderm layer matures into the enamel

6. Maxillary Artery
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
The development of different forms
Divides the crown and the root
Largest of the branches of the external carotid artery; supplies facial structure

7. Foliate Papillae
Oval structures that are located on the dorsal surface of the tongue
Raised vertical folds of tissue on the lateral border of the tongue
Where the proximal sides of two teeth come together and touch
Peg shaped crown with a smooth surface

8. Deep Facial Veins
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Resists forces that try to pull the tooth outward
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Of or pertaining to area surrounding naval cavity

9. What are the four main functions of deciduous teeth?
Buccal - lingual - and inferior alveolar
Mastication - aids in speech - influence facial structure - chewing surfaces
Occurs in unusual ways and distorted crowns may appear
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum

10. Maxillary Tuberosity
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
A rounded area beyond the last posterior maxillary tooth
The fixed attachment of a muscle
Inside surface Which is towards the tongue - on anterior teeth

11. Anterior Alveolar Nerve
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Third tooth from the midline
Appears to be loosely attached - covering the alveolar bone.

12. How many teeth are in the Primary teeth?
20
Middle line of the teeth
Biting edge of the teeth
4 cusps/ bifurcated

13. Enamel Lamellae
Functions the same as the alveolar cfg; originate in alveolar bone
Narrow long enamel tuft
Inner portion of the enamel rod
Mastication - aids in speech - influence facial structure - chewing surfaces

14. Buccal Mucosa
Digstric - Mylohyoid - stylohyoid - geniohyoid
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
The inner surface of the cheeks
The disc becomes displaced

15. Mental Nerve Branch
Largest division of the trigeminal nerve
Cut - tear - and grind food
Branches off the inferior alveolar artery before intering the mandibular canal
32

16. Fordyce's Spots
Middle line of the teeth
Small yellowish glands on the labial mucosa
No bicuspids/ no 3rd molars
Rounded depression on a tooth

17. Labial Commissures
The development of different cells
Small yellowish glands on the labial mucosa
Depresses the tongue
Corners of the mouth

18. Interradicular Septum
Assist in depressing the mandible and elevating the tongue
The bone that separates the root on a tooth
9 months (5 months ultrasound to tell sex)
Third tooth from the midline

19. Nasal-Labial Groove
9 months (5 months ultrasound to tell sex)
A faint line going from the ala of the nose to the corner of the mouth
Wings of the sphenoid bone
The mandibular molars

20. What are the 4 taste senses and where are they located?
Cheek bones--the most breakable bone in the body
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Two vertical extensions of the mandible
The tip of the chin

21. Maxillary Arch
Upper arch of the teeth
Excess dryness of the mouth
Peg shaped crown with a smooth surface
Small head - low nasal bridge - thin upper lip - small mandible

22. Sublingual Sulcus
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Molaris meaning millstone
A horseshoe shaped groove that follow the curve of the dental arch
Pointed elongations of the pulp

23. Imbrication lines
Two vertical extensions of the mandible
A period of both primary teeth and permeant teeth are in the dentition
Molars
Slight ridges on the cervical third of certain teeth that extend mesiodistally

24. Mixed Dentition
Aid in attaching the gingiva to the alveolar bone
A period of both primary teeth and permeant teeth are in the dentition
Second teeth next to central incisors
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle

25. Mesial
Third tooth from the midline
What divides the tongue in half and runs from the base to the tip of the tongue
Cells that form dentin
Surface towards the midline

26. How many cusps/ roots do the maxillary first molars have?
Appears to be loosely attached - covering the alveolar bone.
Lower arch of the teeth
4/5 cusps/ 3 roots
The moveable attachment of the muscle

27. How many teeth are in the permanent set of teeth?
6 years old
32
When the surface of the teeth becomes grooved
Scroll like bones outside the nasal cavaties

28. Succedaneous teeth
Permeante teeth replace the primary teeth
Palatoglossus - palatopharyngeal
The largest of the salivary glands which lie just below and in front of the ear
The largest of three openings located in the posterior region of the hard palate

29. Cementoblast
Cells that form cementum
Excess bone formations under the tongue on the alvellar bone
The groove below the lower lips that separates the lips from the chin
A bony plate covered with keratinized tissue located in the anterior portion of the palate

30. What are the four major muscles of facial expression
When the tissue becomes inflamed
Contains six branches that supply blood to the pharynx muscles - soft palate tonsils - the posterior of the tongue - sub mandibular gland - muscles of the face - nasal septom - nose and the eyelids
Orbicularis oris - buccinator - mentalis - zygomatic major
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

31. Oblique Ridge
Interdental ligament
Surface towards the midline
Molars
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth

32. Imbritation Lines of Von Eboner
Drains the superficial veins of the face and neck into the subclavian vein
Stained growth rings in dentin
Enamel is thinner - pulp chamber is smaller -
Responsible for laying down the enamel matrix into place

33. Ridge
Acts as anchors between the alveolar bone and the tooth
Dentin found between the tubules
Linear elevation of the tooth
A projection that extends off the back of the soft palate

34. Free Gingiva
The portion of the tooth that meets the gingiva
Arteries supplying blood to most of the head and the neck
Where the ramus meets the body of the mandible on the outside border
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine

35. Parotid Papilla
Study of the structure and form of the teeth
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
A flap of tissue on the on the buccal mucosa
Drains the superficial veins of the face and neck into the subclavian vein

36. Vermilion Zone
Creates the wall of the dentinal tubule
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Portion of the lips that are red
Wearing away of the incisal or occlusal surfaces of the tooth

37. Gingival Hyperplasia
Quarters of the teeth
An overgrowth of the gingival tissue
The portion of the tooth that meets the gingiva
Constricts the nasopharyngeal passage and elevates the larynx

38. What is the function of the buccle nerve branch?
Inner portion of the enamel rod
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Bicuspids
Function to resist rotational forces and tilting

39. Lesser Palatine Nerve
Covers muscle tissue in the posterior portion of the palate
Healthy gingival tissue with an orange texture
Smaller branch that ennervates the soft palate uvula and tonsils
Found near the cementoenamel junction

40. Retro Mandibular Vein
Extreme variations from the norm
Drains the maxiallary artery and superficial temporal arteries
Quarters of the teeth
Located on the inside of the body of the ramus

41. Mantle Dentin
To lubricate the oral cavity and to moisten food
Healthy gingival tissue with an orange texture
The first predentin that is formed and matures within the tube
A raised area of tissue laying behind the maxillary central incisors on the hard palate

42. Inferior Alveolar Artery
Act to maintain the gingival integrity of the marginal gingiva
A faint line going from the ala of the nose to the corner 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
Supplies blood to the roots and periodontal ligaments of the interior teeth

43. When does the maxillary first molar erupt?
6 years old
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
A line of tissue that extends from the tongue to the floor of the mouth
A junction or center of veins that directly or indirectly drain a vast area

44. Resonance
Trigeminal - facial - glossopharyngeal - hypoglossal
Three bulges on the incisal edge
Supplies blood to the face and oral cavity
Full deep rich sound in nasal cavity

45. Alveolar Mucosa
Lining covers inside of the oral cavity
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Appears to be loosely attached - covering the alveolar bone.
The bone that separates the root on a tooth

46. Maxillary Sinus
Quarters of the teeth
Forms a large cavity above the roots of the maxillary molars
(free gingiva) surrounds the teeth
Forms the bulk of the tooth

47. Lobes
Developmental segment of a tooth
Triangular space in the gingival direction when two adjacent teeth are in contact
Largest division of the trigeminal nerve
10 days

48. Interradical Fiber Group
Inside surface Which is towards the tongue - on anterior teeth
Found only in multi-rooted teeth and resists rotational forces
A bony projection that separates each socket
Initiation of the tooth begins

49. Muscle origine
Depresses the tongue
Excess bone in the middle of the palate
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
The fixed attachment of a muscle

50. Mylohyoid Artery
Branches off the inferior alveolar artery before intering the mandibular canal
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Draws the hyoid bone superiorly and posteriorly and stabilizes it
A faint line going from the ala of the nose to the corner of the mouth