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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. Filiform Papillae
Indented
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Supplies blood to the roots and periodontal ligaments of the molars and premolars

2. What is another name for premolars?
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Cheek bones--the most breakable bone in the body
Bi-cuspids
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface

3. Palantine Tonsils
The connective tissue of the marginal gingiva
Bi-cuspids
Located in a depressed area between the pillars
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars

4. What is the purpose of saliva?
Dentin found between the tubules
To lubricate the oral cavity and to moisten food
Genioglossus - hyoglossus - styloglossus - palatoglossus
Appears to be loosely attached - covering the alveolar bone.

5. Primary palate
The fixed attachment of a muscle
Separates the developing oral cavities from the nasal cavities
The teeth located at the back of the mouth
Tubules that pass through the entire surface of the dentin

6. Soft Palate
Covers muscle tissue in the posterior portion of the palate
Formed by the fibroblast cells and secures the tooth in the socket
No bicuspids/ no 3rd molars
The crown of the tooth that is nearest the incisal edge near the anterior tooth

7. Cementoblast
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
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Cells that form cementum

8. Taste Buds
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
Appears to be loosely attached - covering the alveolar bone.
Oval structures that are located on the dorsal surface of the tongue
Outside surface Which is towards the cheek - on posterior teeth

9. How many cusps/ roots do the maxillary first molars have?
A raised area of tissue laying behind the maxillary central incisors on the hard palate
4/5 cusps/ 3 roots
Of or pertaining to area surrounding naval cavity
Demonstrates a disturbance in the body metabolism

10. Periodontal Ligaments
Formed by the fibroblast cells and secures the tooth in the socket
The deepest point of the vestibule
A small projection in the middle of the upper lip
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein

11. Median Sulcus
Incremental line indicating trauma of birth
What divides the tongue in half and runs from the base to the tip of the tongue
Slight ridges on the cervical third of certain teeth that extend mesiodistally
The mandibular molars

12. Labial Commissures
The development of different tissues
The corners of the mouth where the top and bottom lip meet
Largest facial bone with two sections joined at the median suture
Outside surface Which is towards the cheek - on posterior teeth

13. Gland
The deepest point of the vestibule
The moveable attachment of the muscle
Cut - tear - and grind food
Cluster of tissue that manufactures and secrets fluid

14. Secondary palate
Small dark brushes
Forms the bulk of the tooth
Forms the remaining 2/3 of the hard and soft palate uvula
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone

15. Glenoid Fossa
Shaping the tongue during speech - mastication and swallowing
Cluster of tissue that manufactures and secrets fluid
A faint line going from the ala of the nose to the corner of the mouth
Oval depression of temporal bone in condyloid process

16. Mental Nerve Branch
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Bone that surrounds the root of the tooth
Largest division of the trigeminal nerve
Molars

17. External Jugular Vein
9 weeks thru birth
Shed from the oral cavity
Found near the cementoenamel junction
Drains the superficial veins of the face and neck into the subclavian vein

18. Infraorbital Foramen
Small raised projections where taste buds are located
Mildest form of cleft palate
No bicuspids/ no 3rd molars
Opening in the mouth below the orbit on the maxillary bone

19. Tome's process
Depresses the tongue
Responsible for laying down the enamel matrix into place
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Portion covered with cementum

20. Anterior Tonsillar Pillar
Peg shaped crown with a smooth surface
A small projection in the middle of the upper lip
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Lower arch of the teeth

21. How many cusps/ roots do the 2/3rd maxillary molars have?
Three cusps/ trifurcated
Small raised projections where taste buds are located
The cornerstone of the mouth
The connective tissue of the marginal gingiva

22. Pulp horns
Pointed elongations of the pulp
Slight ridges on the cervical third of certain teeth that extend mesiodistally
The tip of the chin
Middle line of the teeth

23. Vermilion Zone
Teeth after cuspids
Primary embryonic mesoderm layer that develops during the morpho differentiation period
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Portion of the lips that are red

24. Nasal-Labial Groove
Disk that acts like a cushion between the temporal bone and the condyloid process
A faint line going from the ala of the nose to the corner of the mouth
The tip of the chin
Occurs in unusual ways and distorted crowns may appear

25. Function of Trapezius
Moves the head backward and laterally
Peg shaped crown with a smooth surface
Initiation of the tooth begins
Drains the floor of the mouth

26. Mantle Dentin
Disk that acts like a cushion between the temporal bone and the condyloid process
The first predentin that is formed and matures within the tube
Supplies blood to the brain and the eyes
Elevated are of enamel that forms the Mesial and distal borders

27. What is saliva made of?
Responsible for laying down the enamel matrix into place
Pointed elongations of the pulp
Study of prenatal growth and the developing process of an individual
H20 - mucin - organic salts and digestive enzymes

28. Groove
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Sharp projection on the under surface of the temporal bone
Surface towards the midline
Small linear depression

29. Cervical Third
Canal or passage for fluid
The area on the crown of the tooth that is nearest the gingival
Drains the facial structures beginning near the eye and descending toward the mandible
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

30. Cyto differentiation
Pointed or rounded mounds on the crown of the tooth
Biting edge of the teeth
The development of different cells
Draws down the mandible and corners of the mouth

31. Pulpitis
Small dark brushes
Found near the cementoenamel junction
When the tissue becomes inflamed
Where the ramus meets the body of the mandible on the outside border

32. Landmarks
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Inside surface Which is towards the tongue - on anterior teeth
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements

33. External Oblique Ridge
Follows the length of the body of the mandible past the last tooth and up to the ramus
An extension of an unattached gingiva and the tooth
Maxillary first molar
A dense tissue covered with mucous membrane that can withstand chewing

34. Denticion
Where the proximal sides of two teeth come together and touch
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
Natural teeth in position
What divides the tongue in half and runs from the base to the tip of the tongue

35. Gestational period
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Lift the hyoid bone and assist in opening the mouth
The deepest point of the vestibule
9 months (5 months ultrasound to tell sex)

36. Fetus
Platysma - trapezius - sternocleidomastoid
Outside surface Which is towards the lips
9 weeks thru birth
A projection that extends off the back of the soft palate

37. How many teeth are in the permanent set of teeth?
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Peg shaped crown with a smooth surface
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
32

38. Cortical Bone
12 years
H20 - mucin - organic salts and digestive enzymes
Natural teeth in position
Compact bone plate of the facial and lingual surfaces

39. Lamina Propria
Supplies blood to the brain and the eyes
The connective tissue of the marginal gingiva
Moves the head backward and laterally
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth

40. Mamelons
Small head - low nasal bridge - thin upper lip - small mandible
Three bulges on the incisal edge
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Respiratory system - digestive system and glandular organs

41. External Carotid Artery
The deepest point of the vestibule
The mandibular molars
Supplies blood to the face and oral cavity
A line of tissue that extends from the tongue to the floor of the mouth

42. Peg lateral
Raised vertical folds of tissue on the lateral border of the tongue
Hinge motion and gliding movement
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
Peg shaped crown with a smooth surface

43. Furcation
A period of both primary teeth and permeant teeth are in the dentition
A line of demarcation between the attached gingiva and alveolar mucosa
Molars
Dividing point of a multi-rooted tooth

44. Osteoclasts
Dentin found between the tubules
Orbicularis oris - buccinator - mentalis - zygomatic major
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip

45. Mixed Dentition
The largest of three openings located in the posterior region of the hard palate
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Mucosa that covers the alveolar bone
A period of both primary teeth and permeant teeth are in the dentition

46. What are the 4 maxillary nerve branches?
Forms after the completion of the apical foramen
Second teeth next to central incisors
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
2 small raised folds of tissue where the lingual frenum attaches

47. Incisal Edge
Fleshy elevation under the tongue
Biting edge of the teeth
Set of arches found farther in the back of the throat
Band of fibrous tissue which attaches muscle to bone

48. What teeth are removed if overcrowding occurs?
Extreme variations from the norm
Bicuspids
Located on the inside of the body of the ramus
Wearing away of the incisal or occlusal surfaces of the tooth

49. Muscle origine
Mucosa that covers the alveolar bone
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Moves the head backward and laterally
The fixed attachment of a muscle

50. Maxillary vein
Excess bone formations under the tongue on the alvellar bone
Drains the Pterygoid plexus of the veins
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen