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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. Palatine Rugae
The ridges that run horizontally across the hard palate behind the incisive papilla
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
The teeth located at the back of the mouth
The disc becomes displaced

2. Parotid glands
Second teeth next to central incisors
12 years
The gingiva in the floor of the gingival sulcus that attaches to the enamel
The largest of the salivary glands which lie just below and in front of the ear

3. Dentinal Fluid
Tissue fluid surrounding the cell membrane of the odontoblast
The slightly raised line extending down the middle of the hard palate
Circle and tighten the gingival margin around the neck of the tooth
Radiates from the developmental groove

4. What are the only permeant teeth that are not succedaneous?
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
Follows the length of the body of the mandible past the last tooth and up to the ramus
Molars
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors

5. Mastoid process
Opening for the ear
Smaller branch that ennervates the soft palate uvula and tonsils
Bony projection found on the bottom border of the temporal bone
Two vertical extensions of the mandible

6. Ligament
Used to pulverize food
Circle and tighten the gingival margin around the neck of the tooth
A shallow v-shaped depression located below the bottom of the nose and above the lips
Band of fibrous tissue which attaches bone to bone

7. Incisive Papilla
Opening in the mouth below the orbit on the maxillary bone
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Trigeminal - facial - glossopharyngeal - hypoglossal
Outside surface Which is towards the lips

8. Mandible Arch
Bi-cuspids
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Lower arch of the teeth
Greater - lesser - naso palatine nerves

9. Fossa
Act to maintain the gingival integrity of the marginal gingiva
Folds of tissue to the the lingual veins
Excess bone in the middle of the palate
Rounded depression on a tooth

10. Oblique Ridge
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Dentin found between the tubules
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
To bulge of curve outward

11. Median Sulcus
Orbicularis oris - buccinator - mentalis - zygomatic major
The groove below the lower lips that separates the lips from the chin
A line of demarcation between the attached gingiva and alveolar mucosa
What divides the tongue in half and runs from the base to the tip of the tongue

12. Occlusal
A small projection in the middle of the upper lip
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Pulverizing or chewing surface
Assist in the movement and functioning of the tongue

13. External Jugular Vein
Drains the superficial veins of the face and neck into the subclavian vein
The study of the microscopic structure and functions of tissues
A projection that extends off the back of the soft palate
The line of demarcation between the attached gingiva and the marginal gingiva

14. Mental Nerve Branch
Largest division of the trigeminal nerve
6 years old
Depresses the tongue
Retracts or depresses the tongue

15. What are the characteristics of permanent teeth?
Synovial fluid
Enamel is thinner - pulp chamber is smaller -
20
Resist rotational forces and hold teeth in inter-proximal contact

16. What are the two muscles of the soft palate?
The moveable attachment of the muscle
Palatoglossus - palatopharyngeal
Allow flexibility during mastication - speech
Demonstrates a disturbance in the body metabolism

17. When do the tooth buds appear?
Tissue fluid surrounding the cell membrane of the odontoblast
Week 11
Excess bone formations under the tongue on the alvellar bone
Natural teeth in position

18. What are the 4 cranial nerves that ennervate the face and oral cavity
Trigeminal - facial - glossopharyngeal - hypoglossal
An overgrowth of the gingival tissue
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Drains the floor of the mouth

19. Purpose of premolars
Peg shaped crown with a smooth surface
Shed from the oral cavity
To bulge of curve outward
Used to pulverize food

20. Philtrum
A shallow v-shaped depression located below the bottom of the nose and above the lips
Joined at the midline and are often referred to as the median Palatine suture
Looking at the border of the tongue
Bone that surrounds the root of the tooth

21. Caruncle
Second teeth next to central incisors
Mucosa that covers the alveolar bone
Origin of the tooth
Fleshy elevation under the tongue

22. Imbracation Lines
2 to 3 pints
Convex area on the lingual surface near gingiva
Small curved lines that run parellel to the CEJ
Causes a thickening of the cementum around the apex

23. Vermilion Border
The tip of the chin
Opening in the mouth below the orbit on the maxillary bone
Portion of the lips where the skin meets the vermilion zone
Appears to be loosely attached - covering the alveolar bone.

24. Function of Stylohyoid
4/5 cusps/ 3 roots
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Resists intrusive forces that try to push the tooth inwards
A bony projection that separates each socket

25. Pulp horns
A condition where the lower frenum attachment is very short/DDS/frenectomy
Pointed elongations of the pulp
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
6 years old

26. When does the maxillary second molar erupt?
12 years
The development of different forms
The deepest point of the vestibule
Respiratory system - digestive system and glandular organs

27. Cyto differentiation
The teeth located at the back of the mouth
The inner surface of the lips
The disc becomes displaced
The development of different cells

28. Morpho differentiation
Mucosa that covers the alveolar bone
Curve outward
The development of different forms
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch

29. Anterior Alveolar Nerve
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
4th week
Supplies blood to the face and oral cavity
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors

30. Which molar is the wisdom tooth
Growth from the oral epithelium that gives rise to the tooth buds
Outside surface Which is towards the cheek - on posterior teeth
Maxillary third molar
Bicuspids

31. Succedaneous teeth
Triangular space in the gingival direction when two adjacent teeth are in contact
Permeante teeth replace the primary teeth
Healthy gingival tissue with an orange texture
Excess dryness of the mouth

32. Perikymata
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Small grooves noted on some teeth
Growth from the oral epithelium that gives rise to the tooth buds
Small linear depression

33. Gestational period
1500 millimeters
9 months (5 months ultrasound to tell sex)
A condition where the lower frenum attachment is very short/DDS/frenectomy
Draws down the mandible and corners of the mouth

34. Linea Alba
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Duct located on the parotid papilla
A shallow v-shaped depression located below the bottom of the nose and above the lips

35. Maxillary Tuberosity
Covers muscle tissue in the posterior portion of the palate
Forms into the inner lining of the oral cavitiy and enamel of the teeth
A rounded area beyond the last posterior maxillary tooth
Intervating the anterior teeth and the labial gingiva

36. Landmarks
The line of demarcation between the attached gingiva and the marginal gingiva
Chewing and swallowing food
4th week
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements

37. Retromolar Area
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
A triangular area located behind the last molar
A line of tissue that extends from the tongue to the floor of the mouth
The gingiva in the floor of the gingival sulcus that attaches to the enamel

38. Sublingual Caruncles
A horseshoe shaped groove that follow the curve of the dental arch
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
2 small raised folds of tissue where the lingual frenum attaches
Set of arches found farther in the back of the throat

39. Papilla
Corners of the mouth
Intervating the anterior teeth and the labial gingiva
Small raised projections where taste buds are located
The groove below the lower lips that separates the lips from the chin

40. Fungiform Papillae
Resists intrusive forces that try to push the tooth inwards
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Papillae that give the tongue the strawberry effect
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth

41. Odontogenesis
The development of different cells
Two cortical bone plates that come together between each tooth
Opening for the ear
Origin of the tooth

42. Embryo
Respiratory system - digestive system and glandular organs
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Two weeks thru 8th week
A line of tissue that extends from the tongue to the floor of the mouth

43. Posterior Tonsillar Pillar
Drains the facial structures beginning near the eye and descending toward the mandible
Small dark brushes
Set of arches found farther in the back of the throat
Moves the head backward and laterally

44. Cervical line
A junction or center of veins that directly or indirectly drain a vast area
Divides the crown and the root
Pointed elongations of the pulp
12 years

45. Bud stage
Pointed or rounded mounds on the crown of the tooth
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
20
Initiation of the tooth begins

46. Fetus
To lubricate the oral cavity and to moisten food
Fleshy elevation under the tongue
9 weeks thru birth
10 days

47. Resonance
Full deep rich sound in nasal cavity
Forms a large cavity above the roots of the maxillary molars
Excess bone in the middle of the palate
The development of different forms

48. Develop Mental Groove
Follows the inside of the ramus and the body of the mandible
Formed by the uniting of lobes during development of crown
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Causes a thickening of the cementum around the apex

49. How much saliva do the salivary glands produce in 24 hours?
2 to 3 pints
Mandibular central incisors
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
The teeth located at the back of the mouth

50. Function of mylohyoid
Formed by the fibroblast cells and secures the tooth in the socket
Two weeks thru 8th week
Enamel is thinner - pulp chamber is smaller -
Assist in depressing the mandible and elevating the tongue