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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. Secondary Dentin
The largest of the salivary glands which lie just below and in front of the ear
Forms after the completion of the apical foramen
Triferacated
A faint line going from the ala of the nose to the corner of the mouth

2. Saliva
A dense tissue covered with mucous membrane that can withstand chewing
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Forms a large cavity above the roots of the maxillary molars

3. Mantle Dentin
The first predentin that is formed and matures within the tube
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Largest division of the trigeminal nerve
Three cusps/ trifurcated

4. Facial Vein
Drains the facial structures beginning near the eye and descending toward the mandible
Corners of the mouth
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider

5. Clinical root
Indented
Portion of the root seen in the oral cavity
Two vertical extensions of the mandible
A line of demarcation between the attached gingiva and alveolar mucosa

6. Palatine Bones
Extreme variations from the norm
Joined at the midline and are often referred to as the median Palatine suture
Inner portion of the enamel rod
Mandibular central incisors

7. Pulp Stones
Calcified masses of dentin
Assist in depressing the mandible and elevating the tongue
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Enamel forming cells

8. What teeth are removed if overcrowding occurs?
4 cusps/ bifurcated
Two
Bicuspids
A line of tissue that extends from the tongue to the floor of the mouth

9. Nasolacrimal groove
Extends from the medial corner of the eye to the nasal cavity
Small linear depression
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
The bone that separates the root on a tooth

10. Facial development
The outer edge of the nostril
Covering over the enamel that is left over from the epithelium ameloblasts
Allow flexibility during mastication - speech
4th week

11. Midline
When the tissue becomes inflamed
Middle line of the teeth
Ligaments and muscles of mastication
Elevated are of enamel that forms the Mesial and distal borders

12. How many teeth are in the Primary teeth?
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
20
Cheek bones--the most breakable bone in the body
Moves the head backward and laterally

13. Purpose of premolars
Separation of the upper lip ( 1 of 1000 live births)
Set of arches found farther in the back of the throat
Used to pulverize food
A raised area of tissue laying behind the maxillary central incisors on the hard palate

14. Lingual
Inside surface Which is towards the tongue - on anterior teeth
Resist rotational forces and hold teeth in inter-proximal contact
9 weeks thru birth
Supplies blood to the roots and periodontal ligaments of the molars and premolars

15. Parotid Papilla
A flap of tissue on the on the buccal mucosa
The fixed attachment of a muscle
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
A horseshoe shaped groove that follow the curve of the dental arch

16. Genial Tubercles
A line of demarcation between the attached gingiva and alveolar mucosa
Small bony projections surrounding the lingual foramen
Bone that surrounds the root of the tooth
Draws the hyoid bone superiorly and posteriorly and stabilizes it

17. Groove
Supportive fibers that anchor the tooth to the bone
Small linear depression
Drains the maxiallary artery and superficial temporal arteries
Surface towards the midline

18. Retromolar Area
A triangular area located behind the last molar
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Two weeks thru 8th week
Resulting from an imperfect union where the lobes come together

19. Cleft Uvula
Mildest form of cleft palate
Calcium salts are deposited into formed tooth
Conception thru the first two weeks
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar

20. Odontoblast
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Cells that form dentin
The teeth located at the back of the mouth
Full deep rich sound in nasal cavity

21. TMJ bones are bathed In what solution?
Extends from the mucogingival junction to the gingival groove
Synovial fluid
Curve outward
The moveable attachment of the muscle

22. Labial-Mental Groove
The mandibular molars
The groove below the lower lips that separates the lips from the chin
Branches off the inferior alveolar artery before intering the mandibular canal
Maxillary first molar

23. Which molar contains the cusp of Caribelli?
Maxillary first molar
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Teeth after cuspids
No bicuspids/ no 3rd molars

24. What are the two muscles of the soft palate?
Palatoglossus - palatopharyngeal
Indented
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Stained growth rings in dentin

25. Dentogingival Fiber Groups
Small bony projections surrounding the lingual foramen
Extends from the medial corner of the eye to the nasal cavity
Band of fibrous tissue which attaches bone to bone
Act to maintain the gingival integrity of the marginal gingiva

26. Buckle groove
Study of prenatal growth and the developing process of an individual
Resulting from an imperfect union where the lobes come together
The development of different forms
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth

27. Lingual Foramen
Triferacated
Forming organ takes shape and resembles the shape of a bell
The internal surface at the center of the mandible
What divides the tongue in half and runs from the base to the tip of the tongue

28. What is saliva made of?
H20 - mucin - organic salts and digestive enzymes
Palatoglossus - palatopharyngeal
Genioglossus - hyoglossus - styloglossus - palatoglossus
Cells that form cementum

29. Tubercle of the Lip
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
A small projection in the middle of the upper lip
Extends from the mucogingival junction to the gingival groove
Used to pulverize food

30. What is the most common problem with TMJ
Portion of the lips that are red
Circle and tighten the gingival margin around the neck of the tooth
The outer edge of the nostril
The disc becomes displaced

31. Apical Fiber Group
Resists forces that try to pull the tooth outward
Molars
A dense tissue covered with mucous membrane that can withstand chewing
Calcium salts are deposited into formed tooth

32. Internal Jugular Vein
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Place where the groove comes together or fissures cross
20
Cells develop into different tissues

33. Occlusal
The largest of three openings located in the posterior region of the hard palate
A projection that extends off the back of the soft palate
Pulverizing or chewing surface
Small grooves noted on some teeth

34. Bud stage
A condition where the lower frenum attachment is very short/DDS/frenectomy
Platysma - trapezius - sternocleidomastoid
Three bulges on the incisal edge
Initiation of the tooth begins

35. Agenesis
Occurs in unusual ways and distorted crowns may appear
The tip of the chin
Opening in the mouth below the orbit on the maxillary bone
Supplies blood to the face and oral cavity

36. Dental Arteries
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Resists forces that try to pull the tooth outward
Pulls the hyoid bone and the tongue anteriorly
Portion covered with cementum

37. Contact Area
Where the proximal sides of two teeth come together and touch
H20 - mucin - organic salts and digestive enzymes
Cluster of tissue that manufactures and secrets fluid
The inner surface of the cheeks

38. Calcification
The portion of the tooth that meets the gingiva
Middle line of the teeth
Rounded depression on a tooth
Layers of tooth tissue become calcified

39. What are the characteristics of permanent teeth?
A bony projection that separates each socket
Opening in the mouth below the orbit on the maxillary bone
Enamel is thinner - pulp chamber is smaller -
When the surface of the teeth becomes grooved

40. Infraorbital Foramen
Full deep rich sound in nasal cavity
Creates the wall of the dentinal tubule
Opening in the mouth below the orbit on the maxillary bone
2 small raised folds of tissue where the lingual frenum attaches

41. Lingual Vein
Third tooth from the midline
Drains the floor of the mouth
Cells develop into different tissues
Function to resist rotational forces and tilting

42. Lacrimal Bones
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Depresses the tongue
Layers of tooth tissue become calcified

43. What is Ankyloglossia and who can treat it / What is the treatment called?
Portion of the root seen in the oral cavity
A condition where the lower frenum attachment is very short/DDS/frenectomy
Act to maintain the gingival integrity of the marginal gingiva
A raised white line that runs parallel to where the teeth meet on the buccal mucosa

44. Embryology
Intervating the anterior teeth and the labial gingiva
Trigeminal nerve--because it ennervates the maxilla and the mandible
Study of prenatal growth and the developing process of an individual
Curve outward

45. How many cusps/ roots do the 2/3rd maxillary molars have?
Three cusps/ trifurcated
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Sharp projection on the under surface of the temporal bone
The layer of dentin that surrounds the pulp

46. When do the primary teeth begin erupting and are fully erupted?
Inside surface Which is towards the tongue - on anterior teeth
Portion of the lips where the skin meets the vermilion zone
6 months/3years
Biting edge of the teeth

47. Meniscus
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Chewing and swallowing food
Two
Disk that acts like a cushion between the temporal bone and the condyloid process

48. Central Incisor
Bifurcated/ 5 cusps
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
Middle two teeth in the mouth
The fixed attachment of a muscle

49. Mamelons
Three bulges on the incisal edge
6 years old
Lower arch of the teeth
Looking at the border of the tongue

50. Labial
Outside surface Which is towards the lips
The inner surface of the lips
Band of fibrous tissue which attaches muscle to bone
The groove below the lower lips that separates the lips from the chin