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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. Duct
The development of different forms
The cornerstone of the mouth
Canal or passage for fluid
Papillae that give the tongue the strawberry effect

2. What are the two ways the TMJs move?
Hinge motion and gliding movement
Used to pulverize food
Shed from the oral cavity
What divides the tongue in half and runs from the base to the tip of the tongue

3. What are the 4 taste senses and where are they located?
A junction or center of veins that directly or indirectly drain a vast area
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue

4. What ligament is retained the longest during periodontal disease?
Interdental ligament
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
6 months/3years
The inner surface of the cheeks

5. Mixed Dentition
6 months/3years
Small curved lines that run parellel to the CEJ
A period of both primary teeth and permeant teeth are in the dentition
Digstric - Mylohyoid - stylohyoid - geniohyoid

6. Proliferation
Branches off the inferior alveolar artery before intering the mandibular canal
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Where the ectoderm layer matures into the enamel
Substances between cells

7. Odontoblast
Oval depression of temporal bone in condyloid process
Interdental ligament
A dense tissue covered with mucous membrane that can withstand chewing
Cells that form dentin

8. Cusp of Caribelli
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Trigeminal - facial - glossopharyngeal - hypoglossal
The area on the crown of the tooth that is nearest the gingival
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx

9. Mastoid process
The portion of the tooth that meets the gingiva
Developmental segment of a tooth
Largest division of the trigeminal nerve
Bony projection found on the bottom border of the temporal bone

10. Mylohyoid Nerve Branch
Resist rotational forces and hold teeth in inter-proximal contact
Drains the floor of the mouth
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle

11. Mesial
20
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
Surface towards the midline
Full deep rich sound in nasal cavity

12. Common Carotid
The development of different forms
Short tubules that seem to crossover to the enamel
Buccal - lingual - and inferior alveolar
Arteries supplying blood to most of the head and the neck

13. What is the longest tooth in the mandibular arch?
Trigeminal - facial - glossopharyngeal - hypoglossal
The mandibular first premolar
Portion covered with cementum
Elevated are of enamel that forms the Mesial and distal borders

14. Internal Carotid Artery
Supplies blood to the brain and the eyes
Aid in attaching the gingiva to the alveolar bone
Located behind the ramus of the mandible and branches into five arteries
Follows the length of the body of the mandible past the last tooth and up to the ramus

15. lst and second premolars
Teeth after cuspids
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Drains the facial structures beginning near the eye and descending toward the mandible
Cells develop into different tissues

16. Exfoliated
Shed from the oral cavity
A line of tissue that extends from the tongue to the floor of the mouth
Resists forces that try to pull the tooth outward
Cells that form dentin

17. Alveolus
Bone that surrounds the root of the tooth
Draws down the mandible and corners of the mouth
Bicuspids
Incremental lines around the layers of the enamel matrix

18. Lingual Veins
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Forms the remaining 2/3 of the hard and soft palate uvula
Teeth will not erupt in proper position
Bluish veins that run the length of the tongue

19. Mucosa
Bluish veins that run the length of the tongue
Excess bone in the middle of the palate
Lining covers inside of the oral cavity
Fleshy elevation under the tongue

20. Fissure
Platysma - trapezius - sternocleidomastoid
Portion of the root seen in the oral cavity
Incremental lines around the layers of the enamel matrix
Resulting from an imperfect union where the lobes come together

21. What are the 4 pairs of muscles of mastication!
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Respiratory system - digestive system and glandular organs
Enamel forming cells
The layer of dentin that surrounds the pulp

22. Articular Disc
Synovial fluid
Molars
The teeth located at the back of the mouth
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle

23. Greater Palatine Nerve
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Cheek bones--the most breakable bone in the body
Opening for the ear
Drains the maxiallary artery and superficial temporal arteries

24. Maxillary Artery
Upper arch of the teeth
Inside surface Which is towards the tongue - on anterior teeth
Largest of the branches of the external carotid artery; supplies facial structure
A bony plate covered with keratinized tissue located in the anterior portion of the palate

25. Secondary palate
Forms the remaining 2/3 of the hard and soft palate uvula
Opening for the ear
Drains the superficial veins of the face and neck into the subclavian vein
Lower arch of the teeth

26. Mandibular Foramen
Located on the inside of the body of the ramus
Outside surface Which is towards the lips
Place where the groove comes together or fissures cross
Functions the same as the alveolar cfg; originate in alveolar bone

27. Cuspid
Biting edge of the teeth
Radiates from the developmental groove
Third tooth from the midline
Oval depression of temporal bone in condyloid process

28. What is Ankyloglossia and who can treat it / What is the treatment called?
A condition where the lower frenum attachment is very short/DDS/frenectomy
Draws the hyoid bone superiorly and posteriorly and stabilizes it
When the surface of the teeth becomes grooved
Fifth cusp located on the mesial surface lingual surface of maxillary first molars

29. Enamel Lamellae
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Three cusps/ trifurcated
Narrow long enamel tuft
Sharp projection on the under surface of the temporal bone

30. Anterior Tonsillar Pillar
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Responsible for laying down the enamel matrix into place
Full deep rich sound in nasal cavity
A bony plate covered with keratinized tissue located in the anterior portion of the palate

31. Contour Lines of Owen
The mandibular molars
Bifurcated/ 5 cusps
Demonstrates a disturbance in the body metabolism
To lubricate the oral cavity and to moisten food

32. Ligament
Excess dryness of the mouth
Band of fibrous tissue which attaches bone to bone
Quarters of the teeth
Portion of the root seen in the oral cavity

33. External Carotid Artery
The moveable attachment of the muscle
Supplies blood to the face and oral cavity
Inside surface Which is towards the tongue - on anterior teeth
Drains the Pterygoid plexus of the veins

34. Linea Alba
Enamel is thinner - pulp chamber is smaller -
Forms after the completion of the apical foramen
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Cells From which connective tissue evolve

35. What are the 3 branches of the pterygopalatine nerve branch?
The mandibular first premolar
Drains the superficial veins of the face and neck into the subclavian vein
Greater - lesser - naso palatine nerves
6 months/3years

36. How many teeth are in the Primary teeth?
When the tissue becomes inflamed
When the dentin is exposed
20
Arteries supplying blood to most of the head and the neck

37. Philtrum
A flap of tissue on the on the buccal mucosa
A shallow v-shaped depression located below the bottom of the nose and above the lips
The largest of three openings located in the posterior region of the hard palate
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein

38. Labial Commissures
Mandibular central incisors
The corners of the mouth where the top and bottom lip meet
4 cusps/ bifurcated
Causes a thickening of the cementum around the apex

39. Zygomatic nerve
Elevates the posterior portion of the tongue and narrows the fauces
Portion covered with cementum
A flap of tissue on the on the buccal mucosa
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch

40. Osteoclasts
Tubules that pass through the entire surface of the dentin
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Lift the hyoid bone and assist in opening the mouth
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged

41. Ala of the Nose
The outer edge of the nostril
Act to maintain the gingival integrity of the marginal gingiva
Supplies blood to the roots and periodontal ligaments of the interior teeth
The largest of three openings located in the posterior region of the hard palate

42. Primary Dentin
A condition where the lower frenum attachment is very short/DDS/frenectomy
Raised vertical folds of tissue on the lateral border of the tongue
Forms the bulk of the tooth
Divides the crown and the root

43. Sublingual Caruncles
2 small raised folds of tissue where the lingual frenum attaches
Papillae that give the tongue the strawberry effect
Drains the floor of the mouth
Duct located on the parotid papilla

44. Cusps
Bluish veins that run the length of the tongue
Dividing point of a multi-rooted tooth
Pointed or rounded mounds on the crown of the tooth
Where the ectoderm layer matures into the enamel

45. What are the 2 sets of teeth?
Primary and permanent
A small projection in the middle of the upper lip
Cells develop into different tissues
Found only in multi-rooted teeth and resists rotational forces

46. Glenoid Fossa
2 small raised folds of tissue where the lingual frenum attaches
The moveable attachment of the muscle
Oval depression of temporal bone in condyloid process
Narrow long enamel tuft

47. Ameloblast
Stained growth rings in dentin
Oval structures that are located on the dorsal surface of the tongue
Enamel forming cells
Excess bone in the middle of the palate

48. What are the 4 extrinsic muscles of the tongue
Growth from the oral epithelium that gives rise to the tooth buds
Genioglossus - hyoglossus - styloglossus - palatoglossus
Bicuspids
Hinge motion and gliding movement

49. Central Incisor
Middle two teeth in the mouth
Band of fibrous tissue which attaches muscle to bone
A condition where the lower frenum attachment is very short/DDS/frenectomy
4/5 cusps/ 3 roots

50. Pterygoid plexus of the veins
A junction or center of veins that directly or indirectly drain a vast area
The corners of the mouth where the top and bottom lip meet
Palatoglossus - palatopharyngeal
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider