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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. Alveolus
Primary and permanent
Largest of the branches of the external carotid artery; supplies facial structure
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Bone that surrounds the root of the tooth

2. Mandibular Artery
Inside of the maxillary teeth
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
Located behind the ramus of the mandible and branches into five arteries

3. Circumvallate Papillae
Maxillary first molar
An overgrowth of the gingival tissue
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Papillae that give the tongue the strawberry effect

4. Midline
The first predentin that is formed and matures within the tube
A bat shaped bone which forms the anterior portion of the skull
Rounded depression on a tooth
Middle line of the teeth

5. Stomedeum
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
Primitive mouth
A faint line going from the ala of the nose to the corner of the mouth
Cells that form cementum

6. Embrasure
Triangular space in the gingival direction when two adjacent teeth are in contact
Genioglossus - hyoglossus - styloglossus - palatoglossus
Located on the inside of the body of the ramus
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth

7. Maxillary Artery
Supplies blood to the roots and periodontal ligaments of the interior teeth
10 days
The fixed attachment of a muscle
Largest of the branches of the external carotid artery; supplies facial structure

8. Function of Geneoglossus?
The disc becomes displaced
The smallest of the salivary glands located on the floor of the mouth which empty into the mouth thru either the ducts of Rivinus or Bartholin
Tooth emerges from gum tissue and becomes visible
Retracts or depresses the tongue

9. Facial Artery
Opening in the mouth below the orbit on the maxillary bone
An overgrowth of the gingival tissue
Hinge motion and gliding movement
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

10. Where is the palate located?
10 days
A shallow v-shaped depression located below the bottom of the nose and above the lips
Inside of the maxillary teeth
Healthy gingival tissue with an orange texture

11. Develop Mental Groove
Outside surface Which is towards the cheek - on posterior teeth
Formed by the uniting of lobes during development of crown
Drains the floor of the mouth
A rounded area beyond the last posterior maxillary tooth

12. Peg lateral
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Peg shaped crown with a smooth surface
Scroll like bones outside the nasal cavaties
Outside surface Which is towards the lips

13. Greater Palatine Nerve
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Drains the superficial veins of the face and neck into the subclavian vein
Study of the structure and form of the teeth
A shallow v-shaped depression located below the bottom of the nose and above the lips

14. Dental Sac
An enclosed area that matures into dentin - cementum and pulp
Rounded depression on a tooth
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Permeante teeth replace the primary teeth

15. Labial Mucosa
The inner surface of the lips
Two
Portion covered with cementum
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle

16. What are the largest and strongest of the mandibular teeth
The mandibular molars
Surface towards the midline
To lubricate the oral cavity and to moisten food
Pulverizing or chewing surface

17. Zygomatic nerve
Inner portion of the enamel rod
Covering over the enamel that is left over from the epithelium ameloblasts
A rounded area beyond the last posterior maxillary tooth
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch

18. Xygomatic bones
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Inside surface Which is towards the tongue - on anterior teeth
Cheek bones--the most breakable bone in the body
Act to maintain the gingival integrity of the marginal gingiva

19. Furcation
Lift the hyoid bone and assist in opening the mouth
Largest division of the trigeminal nerve
Dividing point of a multi-rooted tooth
The outer edge of the nostril

20. What is the purpose of saliva?
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Used to pulverize food
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
To lubricate the oral cavity and to moisten food

21. Fungiform Papillae
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Aid in attaching the gingiva to the alveolar bone
Papillae that give the tongue the strawberry effect
Conception thru the first two weeks

22. Morphology
Study of the structure and form of the teeth
Narrow long enamel tuft
Two vertical extensions of the mandible
Three bulges on the incisal edge

23. Fissure
Resulting from an imperfect union where the lobes come together
Function to resist rotational forces and tilting
Papillae that give the tongue the strawberry effect
The cornerstone of the mouth

24. Anterior Alveolar Nerve
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Palatoglossus - palatopharyngeal
Mildest form of cleft palate
Disk that acts like a cushion between the temporal bone and the condyloid process

25. Papilla
Orbicularis oris - buccinator - mentalis - zygomatic major
Small raised projections where taste buds are located
Found only in multi-rooted teeth and resists rotational forces
Bi-cuspids

26. Articular Disc
The first predentin that is formed and matures within the tube
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Function to resist rotational forces and tilting

27. Mastoid process
Extends from the medial corner of the eye to the nasal cavity
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Supplies blood to the roots and periodontal ligaments of the interior teeth
Bony projection found on the bottom border of the temporal bone

28. Palatine Rugae
To bulge of curve outward
Three bulges on the incisal edge
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
The ridges that run horizontally across the hard palate behind the incisive papilla

29. Mesenchyme Tissue
Excess dryness of the mouth
2 to 3 pints
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine

30. Nasal-Labial Groove
Depresses the tongue
A faint line going from the ala of the nose to the corner of the mouth
A dense tissue covered with mucous membrane that can withstand chewing
The mandibular molars

31. Ectoderm
Cells that form dentin
When the dentin is exposed
Forms into the inner lining of the oral cavitiy and enamel of the teeth
What divides the tongue in half and runs from the base to the tip of the tongue

32. How is the TMJ supported and what controls their movement?
Rounded depression on a tooth
Primitive mouth
Drains the superficial veins of the face and neck into the subclavian vein
Ligaments and muscles of mastication

33. Median Sulcus
Used to pulverize food
Function to resist rotational forces and tilting
What divides the tongue in half and runs from the base to the tip of the tongue
Small head - low nasal bridge - thin upper lip - small mandible

34. Exfoliated
Draws the hyoid bone superiorly and posteriorly and stabilizes it
4/5 cusps/ 3 roots
Lift the hyoid bone and assist in opening the mouth
Shed from the oral cavity

35. Occlusal
A line that represents the alveolus bone lining the socket
Supportive fibers that anchor the tooth to the bone
Pulverizing or chewing surface
Joined at the midline and are often referred to as the median Palatine suture

36. Lamina Dura
Allow flexibility during mastication - speech
Primitive mouth
A line that represents the alveolus bone lining the socket
Shed from the oral cavity

37. Succedaneous teeth
Maxillary first molar
Supplies blood to the brain and the eyes
Permeante teeth replace the primary teeth
9 months (5 months ultrasound to tell sex)

38. Vermilion Border
Portion of the lips where the skin meets the vermilion zone
Palatoglossus - palatopharyngeal
A bat shaped bone which forms the anterior portion of the skull
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors

39. Dentinal Tubules
Tubules that pass through the entire surface of the dentin
Third tooth from the midline
Resist rotational forces and hold teeth in inter-proximal contact
Incremental line indicating trauma of birth

40. What is the most common problem with TMJ
The disc becomes displaced
Tissue fluid surrounding the cell membrane of the odontoblast
An extension of an unattached gingiva and the tooth
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth

41. Sulingual Folds
Folds of tissue to the the lingual veins
Bony projection found on the bottom border of the temporal bone
The inner surface of the cheeks
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue

42. Maxillary vein
Drains the Pterygoid plexus of the veins
Set of arches found farther in the back of the throat
Canal or passage for fluid
Acts as anchors between the alveolar bone and the tooth

43. Convex
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Bone that surrounds the root of the tooth
Moves the head backward and laterally
To bulge of curve outward

44. Resonance
A horseshoe shaped groove that follow the curve of the dental arch
Ligaments and muscles of mastication
Circle and tighten the gingival margin around the neck of the tooth
Full deep rich sound in nasal cavity

45. Eruption
To lubricate the oral cavity and to moisten food
Tooth emerges from gum tissue and becomes visible
Supplies blood to the brain and the eyes
H20 - mucin - organic salts and digestive enzymes

46. Incisal third
Shed from the oral cavity
The largest of three openings located in the posterior region of the hard palate
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Cells that form dentin

47. Odontogenesis
Digstric - Mylohyoid - stylohyoid - geniohyoid
Portion of the root seen in the oral cavity
Canal or passage for fluid
Origin of the tooth

48. Gingiva
Inner portion of the enamel rod
Substances between cells
Molars
Composed of mucosa and surrounds the necks of the teeth

49. Function of Sternocleidomastoid
Assists in elevating the chin
Appears to be loosely attached - covering the alveolar bone.
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Natural teeth in position

50. lst and second premolars
Retracts the tongue and raises the tip of the tongue
Developmental segment of a tooth
Origin of the tooth
Teeth after cuspids