Test your basic knowledge |

Dental Assisting: Head And Neck Anatomy

Subjects : health-sciences, dentistry

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
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. How many roots/ cusps does the mandibular first molar have?
Radiates from the developmental groove
Acts as anchors between the alveolar bone and the tooth
The fixed attachment of a muscle
Bifurcated/ 5 cusps

2. How many cusps/ roots do the maxillary first molars have?
4/5 cusps/ 3 roots
A flap of tissue on the on the buccal mucosa
Cells From which connective tissue evolve
Bony projection found on the bottom border of the temporal bone

3. Incisal third
Two
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Excess bone formations under the tongue on the alvellar bone
Third tooth from the midline

4. Labial Mucosa
The inner surface of the lips
Small dark brushes
Full deep rich sound in nasal cavity
Wearing away of the incisal or occlusal surfaces of the tooth

5. Ameloblast
A shallow v-shaped depression located below the bottom of the nose and above the lips
Enamel forming cells
Cluster of tissue that manufactures and secrets fluid
A triangular area located behind the last molar

6. Saliva
Synovial fluid
An overgrowth of the gingival tissue
1500 millimeters
Clear fluid secreted by the salivary and mucous glands throughout the mouth

7. Peg lateral
Set of arches found farther in the back of the throat
Incremental lines around the layers of the enamel matrix
Peg shaped crown with a smooth surface
Surface away from the midline

8. Apical Fiber Group
Resists forces that try to pull the tooth outward
To bulge of curve outward
Small dark brushes
Sharp projection on the under surface of the temporal bone

9. What are the 4 pairs of muscles of mastication!
Drains the superficial veins of the face and neck into the subclavian vein
Third tooth from the midline
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Divides the crown and the root

10. What are the extrinsic muscles of the tongue responsible for?
Depresses the tongue
Shed from the oral cavity
The disc becomes displaced
Assist in the movement and functioning of the tongue

11. Mucosa
Lining covers inside of the oral cavity
Primary and permanent
Middle two teeth in the mouth
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue

12. Circumvallate Papillae
Lining covers inside of the oral cavity
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Covers muscle tissue in the posterior portion of the palate
The gingiva in the floor of the gingival sulcus that attaches to the enamel

13. Resonance
Portion of the lips that are red
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Middle two teeth in the mouth
Full deep rich sound in nasal cavity

14. If Palate not fused
Calcium salts are deposited into formed tooth
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Teeth will not erupt in proper position
Origin - fixed point - insertion - movable point

15. Marginal GIngiva
Cells develop into different tissues
Drains the floor of the mouth
Elevates the posterior portion of the tongue and narrows the fauces
(free gingiva) surrounds the teeth

16. Stensens' Duct (aka Parotid)

17. What is the purpose of permanent teeth?
4/5 cusps/ 3 roots
Rounded depression on a tooth
Cut - tear - and grind food
Palatoglossus - palatopharyngeal

18. Facial Artery
Pointed elongations of the pulp
Used to pulverize food
Drains the maxiallary artery and superficial temporal arteries
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

19. Infraorbital Foramen
Forming organ takes shape and resembles the shape of a bell
When the surface of the teeth becomes grooved
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Opening in the mouth below the orbit on the maxillary bone

20. Lacrimal Bones
Third tooth from the midline
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Inner portion of the enamel rod
Maxillary third molar

21. Sublingual Sulcus
Mucosa that covers the alveolar bone
Secrete saliva to assist in process of digestion
Convex area on the lingual surface near gingiva
A horseshoe shaped groove that follow the curve of the dental arch

22. Sublingual Glands
Calcium salts are deposited into formed tooth
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
Second teeth next to central incisors
Two vertical extensions of the mandible

23. Sulingual Folds
The area on the crown of the tooth that is nearest the gingival
Follows the inside of the ramus and the body of the mandible
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
Secrete saliva to assist in process of digestion

24. Dental Sac
Week 11
The study of the microscopic structure and functions of tissues
The fixed attachment of a muscle
An enclosed area that matures into dentin - cementum and pulp

25. Occlusion third
2 small raised folds of tissue where the lingual frenum attaches
When cells rapidly increase in number
Occlusal surface of the posterior tooth
Tubules that pass through the entire surface of the dentin

26. Perikymata
Bluish veins that run the length of the tongue
Bi-cuspids
H20 - mucin - organic salts and digestive enzymes
Small grooves noted on some teeth

27. Posterior Teeth
The inner surface of the cheeks
The teeth located at the back of the mouth
Stained growth rings in dentin
Occurs in unusual ways and distorted crowns may appear

28. What are the 4 cranial nerves that ennervate the face and oral cavity
Retracts the tongue and raises the tip of the tongue
A shallow v-shaped depression located below the bottom of the nose and above the lips
Supportive fibers that anchor the tooth to the bone
Trigeminal - facial - glossopharyngeal - hypoglossal

29. Primary palate
The largest of the salivary glands which lie just below and in front of the ear
Resists forces that try to pull the tooth outward
Set of arches found farther in the back of the throat
Separates the developing oral cavities from the nasal cavities

30. Bud stage
Digstric - Mylohyoid - stylohyoid - geniohyoid
Initiation of the tooth begins
To bulge of curve outward
Shed from the oral cavity

31. Salivary Glands
Incremental lines around the layers of the enamel matrix
Shaping the tongue during speech - mastication and swallowing
Radiates from the developmental groove
Secrete saliva to assist in process of digestion

32. Convects
Curve outward
Allow flexibility during mastication - speech
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Three bulges on the incisal edge

33. Alveolar Crest Fiber Group
Platysma - trapezius - sternocleidomastoid
Supplies blood to the brain and the eyes
Developmental segment of a tooth
Function to resist rotational forces and tilting

34. Sublingual Caruncles
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
2 small raised folds of tissue where the lingual frenum attaches
4 cusps/ bifurcated

35. Pterygoid plexus of the veins
A junction or center of veins that directly or indirectly drain a vast area
When the dentin is exposed
Teeth will not erupt in proper position
Fleshy elevation under the tongue

36. Enamel Dysplasia
When the surface of the teeth becomes grooved
Drains the superficial veins of the face and neck into the subclavian vein
Draws down the mandible and corners of the mouth
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10

37. Symphysis
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Triferacated
Creates the wall of the dentinal tubule
Covering over the enamel that is left over from the epithelium ameloblasts

38. Philtrum
Teeth will not erupt in proper position
A shallow v-shaped depression located below the bottom of the nose and above the lips
Creates the wall of the dentinal tubule
4 cusps/ bifurcated

39. Hard Palate
Cells that form cementum
Follows the length of the body of the mandible past the last tooth and up to the ramus
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Elevated are of enamel that forms the Mesial and distal borders

40. Retromolar Area
No bicuspids/ no 3rd molars
A triangular area located behind the last molar
Compact bone plate of the facial and lingual surfaces
A junction or center of veins that directly or indirectly drain a vast area

41. Maxillary Arch
Upper arch of the teeth
Drains the superficial veins of the face and neck into the subclavian vein
Enamel forming cells
An overgrowth of the gingival tissue

42. Mesenchyme Tissue
Retracts the tongue and raises the tip of the tongue
Opening for the ear
Primary embryonic mesoderm layer that develops during the morpho differentiation period
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

43. Uvula
A projection that extends off the back of the soft palate
The mandibular first premolar
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
A rounded area beyond the last posterior maxillary tooth

44. Internal Oblique Ridge
Corners of the mouth
Follows the inside of the ramus and the body of the mandible
Interdental ligament
A raised white line that runs parallel to where the teeth meet on the buccal mucosa

45. Embryology
A line that represents the alveolus bone lining the socket
When the dentin is exposed
Study of prenatal growth and the developing process of an individual
Circle and tighten the gingival margin around the neck of the tooth

46. Pulpitis
Triangular space in the gingival direction when two adjacent teeth are in contact
When the tissue becomes inflamed
2 to 3 pints
Initiation of the tooth begins

47. Develop Mental Groove
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Supplies blood to the roots and periodontal ligaments of the interior teeth
Formed by the uniting of lobes during development of crown
Corners of the mouth

48. Filiform Papillae
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Greater - lesser - naso palatine nerves
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Drains the superficial veins of the face and neck into the subclavian vein

49. Supplemental Groove
Forms into dentin - cementum and pulp of the teeth
Full deep rich sound in nasal cavity
6 months/3years
Radiates from the developmental groove

50. Greater Palatine Nerve
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Covers muscle tissue in the posterior portion of the palate
Trigeminal nerve--because it ennervates the maxilla and the mandible
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle