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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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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. Horizontal Fiber Group
Mucosa that covers the alveolar bone
Occurs in unusual ways and distorted crowns may appear
Responsible for laying down the enamel matrix into place
Functions the same as the alveolar cfg; originate in alveolar bone

2. If a patient receives toxic agents - how long does it take for their sense of taste to return?
10 days
A faint line going from the ala of the nose to the corner of the mouth
A junction or center of veins that directly or indirectly drain a vast area
Bluish veins that run the length of the tongue

3. Vermilion Border
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Portion of the lips where the skin meets the vermilion zone
4/5 cusps/ 3 roots
Arteries supplying blood to most of the head and the neck

4. Anatomical root
Portion covered with cementum
Oval structures that are located on the dorsal surface of the tongue
The inner surface of the lips
Located in a depressed area between the pillars

5. What is the function of the buccle nerve branch?
Shaping the tongue during speech - mastication and swallowing
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Bi-cuspids
Stained growth rings in dentin

6. What kind of root does the maxillary first molar have?
Origin - fixed point - insertion - movable point
Palatoglossus - palatopharyngeal
Triferacated
Forms into dentin - cementum and pulp of the teeth

7. Facial Artery
Raised vertical folds of tissue on the lateral border of the tongue
10 days
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
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

8. Posterior Tonsillar Pillar
Teeth after cuspids
Calcified masses of dentin
Resists forces that try to pull the tooth outward
Set of arches found farther in the back of the throat

9. What are the 4 extrinsic muscles of the tongue
A bony projection that separates each socket
Genioglossus - hyoglossus - styloglossus - palatoglossus
Trigeminal nerve--because it ennervates the maxilla and the mandible
Teeth after cuspids

10. Alveolar Mucosa
A bony projection that separates each socket
Appears to be loosely attached - covering the alveolar bone.
A condition where the lower frenum attachment is very short/DDS/frenectomy
An extension of an unattached gingiva and the tooth

11. Calcification
Layers of tooth tissue become calcified
Origin - fixed point - insertion - movable point
Retracts the tongue and raises the tip of the tongue
A junction or center of veins that directly or indirectly drain a vast area

12. Tendon
Band of fibrous tissue which attaches muscle to bone
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Wearing away of the incisal or occlusal surfaces of the tooth
Calcified masses of dentin

13. When do the primary teeth begin erupting and are fully erupted?
Week 12
6 months/3years
Triangular space in the gingival direction when two adjacent teeth are in contact
Permeante teeth replace the primary teeth

14. Epithelial Attachment
The disc becomes displaced
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Inner portion of the enamel rod
The slightly raised line extending down the middle of the hard palate

15. Dentinal Tubules
Teeth will not erupt in proper position
Tubules that pass through the entire surface of the dentin
A triangular area located behind the last molar
Arteries supplying blood to most of the head and the neck

16. Uvula
A projection that extends off the back of the soft palate
The development of different cells
The bone that separates the root on a tooth
The deepest point of the vestibule

17. When do oral and nasal cavity separate and palate develop?
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Separation of the upper lip ( 1 of 1000 live births)
Week 12
Supplies blood to the roots and periodontal ligaments of the interior teeth

18. Greater Palatine Nerve
Follows the inside of the ramus and the body of the mandible
A period of both primary teeth and permeant teeth are in the dentition
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Trigeminal nerve--because it ennervates the maxilla and the mandible

19. Anomalies
Interdental ligament
Small yellowish glands on the labial mucosa
Extreme variations from the norm
Function to resist rotational forces and tilting

20. Histo Differentation
Duct located on the parotid papilla
The development of different tissues
Buccal - lingual - and inferior alveolar
A horseshoe shaped groove that follow the curve of the dental arch

21. Sublingual Caruncles
Pointed elongations of the pulp
Depresses the tongue
2 small raised folds of tissue where the lingual frenum attaches
Enamel forming cells

22. Mylohyoid Artery
Drains the floor of the mouth
Enamel is thinner - pulp chamber is smaller -
Branches off the inferior alveolar artery before intering the mandibular canal
Triangular space in the gingival direction when two adjacent teeth are in contact

23. Cleft Uvula
A line of tissue that extends from the tongue to the floor of the mouth
Mildest form of cleft palate
Hinge motion and gliding movement
Papillae that give the tongue the strawberry effect

24. Maxillary Nerve Branch
Occurs in unusual ways and distorted crowns may appear
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Forms a large cavity above the roots of the maxillary molars
Slight ridges on the cervical third of certain teeth that extend mesiodistally

25. Filiform Papillae
Enamel is thinner - pulp chamber is smaller -
Three bulges on the incisal edge
The bone that separates the root on a tooth
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue

26. Maxillary Artery
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
Largest of the branches of the external carotid artery; supplies facial structure
Pointed elongations of the pulp
Tubules that pass through the entire surface of the dentin

27. What is the most common problem with TMJ
Two weeks thru 8th week
Chewing and swallowing food
The disc becomes displaced
Molars

28. Transverse Ridge
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
Causes a thickening of the cementum around the apex
A flap of tissue on the on the buccal mucosa
Quarters of the teeth

29. Gums
Drains the floor of the mouth
The development of different cells
Largest of the branches of the external carotid artery; supplies facial structure
Tissue covering the alveolar processes

30. What is another name for premolars?
A faint line going from the ala of the nose to the corner of the mouth
Bi-cuspids
Second teeth next to central incisors
The bone that separates the root on a tooth

31. Labial-Mental Groove
Interdental ligament
Band of fibrous tissue which attaches bone to bone
Circle and tighten the gingival margin around the neck of the tooth
The groove below the lower lips that separates the lips from the chin

32. Palatine Bones
Joined at the midline and are often referred to as the median Palatine suture
Supportive fibers that anchor the tooth to the bone
4/5 cusps/ 3 roots
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone

33. Contour Lines of Owen
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Demonstrates a disturbance in the body metabolism
Chewing and swallowing food
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip

34. Function of Stylohyoid
Trigeminal - facial - glossopharyngeal - hypoglossal
Draws the hyoid bone superiorly and posteriorly and stabilizes it
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Resist rotational forces and hold teeth in inter-proximal contact

35. Function of Geneoglossus?
Retracts or depresses the tongue
Resists intrusive forces that try to push the tooth inwards
Study of prenatal growth and the developing process of an individual
A line of demarcation between the attached gingiva and alveolar mucosa

36. Ectoderm
Circle and tighten the gingival margin around the neck of the tooth
Tissue covering the alveolar processes
Forms into the inner lining of the oral cavitiy and enamel of the teeth
6 years old

37. Hard Palate
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Bluish veins that run the length of the tongue
Forms after the completion of the apical foramen
Supplies blood to the brain and the eyes

38. What are the eight landmarks of the face?
4th week
Joined at the midline and are often referred to as the median Palatine suture
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
A raised area of tissue laying behind the maxillary central incisors on the hard palate

39. What are the intrinsical muscles of the tongue responsible for?
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Digstric - Mylohyoid - stylohyoid - geniohyoid
Shaping the tongue during speech - mastication and swallowing
The largest of the salivary glands which lie just below and in front of the ear

40. Embryo
A pocket formed by the soft tissue of cheeks and gingiva
Used to pulverize food
The space between the unattached gingiva and the tooth
Two weeks thru 8th week

41. Greater Palatine Foramen
The largest of three openings located in the posterior region of the hard palate
Hinge motion and gliding movement
A pocket formed by the soft tissue of cheeks and gingiva
Assists in elevating the chin

42. Labial
Band of fibrous tissue which attaches muscle to bone
A condition where the lower frenum attachment is very short/DDS/frenectomy
To lubricate the oral cavity and to moisten food
Outside surface Which is towards the lips

43. Papilla
Molaris meaning millstone
Disk that acts like a cushion between the temporal bone and the condyloid process
Small raised projections where taste buds are located
When the tissue becomes inflamed

44. Interdental Ligament Group
Bicuspids
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Resist rotational forces and hold teeth in inter-proximal contact
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip

45. Bud stage
Initiation of the tooth begins
Where the ramus meets the body of the mandible on the outside border
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Small linear depression

46. Vermilion Zone
The corners of the mouth where the top and bottom lip meet
Extends from the mucogingival junction to the gingival groove
Small raised projections where taste buds are located
Portion of the lips that are red

47. Alveolus
Papillae that give the tongue the strawberry effect
The development of different forms
The development of different cells
Bone that surrounds the root of the tooth

48. Hyoid Bone
Extends from the medial corner of the eye to the nasal cavity
Calcium salts are deposited into formed tooth
Located in a depressed area between the pillars
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

49. Ameloblast
The study of the microscopic structure and functions of tissues
Enamel forming cells
A projection that extends off the back of the soft palate
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum

50. Function of Hyoglossus
To dissolve
Layers of tooth tissue become calcified
Hinge motion and gliding movement
Depresses the tongue