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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. What are the 2 sets of teeth?
Primary and permanent
Of or pertaining to area surrounding naval cavity
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
The corners of the mouth where the top and bottom lip meet

2. Facial Artery
The slightly raised line extending down the middle of the hard palate
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
Moves the head backward and laterally
Demonstrates a disturbance in the body metabolism

3. Sublingual Glands
Elevated area fo enamel that extends obliquely across the occlusal surface of the 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
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
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

4. Odontogenesis
The development of different forms
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Bicuspids
Origin of the tooth

5. Embrasure
4 cusps/ bifurcated
What divides the tongue in half and runs from the base to the tip of the tongue
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
Triangular space in the gingival direction when two adjacent teeth are in contact

6. Mylohyoid Nerve Branch
The moveable attachment of the muscle
Oval depression of temporal bone in condyloid process
To bulge of curve outward
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle

7. Palatine Rugae
When the tissue becomes inflamed
The ridges that run horizontally across the hard palate behind the incisive papilla
Looking at the border of the tongue
Full deep rich sound in nasal cavity

8. Landmarks
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
6 years old
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Resist rotational forces and hold teeth in inter-proximal contact

9. Cyto differentiation
The largest of the salivary glands which lie just below and in front of the ear
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Largest of the branches of the external carotid artery; supplies facial structure
The development of different cells

10. Groove
The ridges that run horizontally across the hard palate behind the incisive papilla
Joined at the midline and are often referred to as the median Palatine suture
Small linear depression
Looking at the border of the tongue

11. Maxillary Nerve Branch
Shed from the oral cavity
Portion covered with cementum
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Portion of the lips that are red

12. Which molar contains the cusp of Caribelli?
Resulting from an imperfect union where the lobes come together
Maxillary first molar
Creates the wall of the dentinal tubule
Joined at the midline and are often referred to as the median Palatine suture

13. Labial Commissures
The corners of the mouth where the top and bottom lip meet
A pocket formed by the soft tissue of cheeks and gingiva
Week 11
Set of arches found farther in the back of the throat

14. What are the 4 taste senses and where are they located?
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Layers of tooth tissue become calcified
Where the proximal sides of two teeth come together and touch
Function to resist rotational forces and tilting

15. Function of Digastric
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Portion of the lips where the skin meets the vermilion zone
Lift the hyoid bone and assist in opening the mouth
Supplies blood to the brain and the eyes

16. Maxillary Tuberosity
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
A rounded area beyond the last posterior maxillary tooth
Function to resist rotational forces and tilting
Shaping the tongue during speech - mastication and swallowing

17. Stomedeum
Forms a large cavity above the roots of the maxillary molars
The outer edge of the nostril
Primitive mouth
Lift the hyoid bone and assist in opening the mouth

18. Middle Superior Alveolar Nerve
Small linear depression
The teeth located at the back of the mouth
The line of demarcation between the attached gingiva and the marginal gingiva
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids

19. What kind of root does the maxillary first molar have?
Triferacated
Initiation of the tooth begins
Second teeth next to central incisors
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth

20. Torus Mandibularis
Excess bone formations under the tongue on the alvellar bone
Bony projection found on the bottom border of the temporal bone
Depresses the tongue
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves

21. Imbrication lines
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Calcium salts are deposited into formed tooth
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Used to pulverize food

22. What are the 4 maxillary nerve branches?
A shallow v-shaped depression located below the bottom of the nose and above the lips
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Conception thru the first two weeks
(free gingiva) surrounds the teeth

23. What is the function of the buccle nerve branch?
To lubricate the oral cavity and to moisten food
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
The portion of the tooth that meets the gingiva
Third tooth from the midline

24. Labial Commissures
Maxillary third molar
Cells that form dentin
Corners of the mouth
6 months/3years

25. Pit
Lift the hyoid bone and assist in opening the mouth
Located in a depressed area between the pillars
Place where the groove comes together or fissures cross
Calcified masses of dentin

26. Ridge
Separates the developing oral cavities from the nasal cavities
Linear elevation of the tooth
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
A faint line going from the ala of the nose to the corner of the mouth

27. Occlusion third
Occlusal surface of the posterior tooth
Aid in attaching the gingiva to the alveolar bone
Bicuspids
12 years

28. Endoderm
Growth from the oral epithelium that gives rise to the tooth buds
Respiratory system - digestive system and glandular organs
4 cusps/ bifurcated
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids

29. Articular Disc
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
Primary and permanent
No bicuspids/ no 3rd molars

30. What are the three muscles of the neck?
Small bony projections surrounding the lingual foramen
9 weeks thru birth
Platysma - trapezius - sternocleidomastoid
Of or pertaining to area surrounding naval cavity

31. Vermilion Border
32
Pulls the hyoid bone and the tongue anteriorly
Trigeminal nerve--because it ennervates the maxilla and the mandible
Portion of the lips where the skin meets the vermilion zone

32. Function of Geneoglossus?
Maxillary third molar
Retracts or depresses the tongue
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Small grooves noted on some teeth

33. Facial Vein
When the dentin is exposed
9 weeks thru birth
Portion of the lips where the skin meets the vermilion zone
Drains the facial structures beginning near the eye and descending toward the mandible

34. Frenum
Molaris meaning millstone
Palatoglossus - palatopharyngeal
The inner surface of the cheeks
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip

35. Greater Palatine Nerve
Secrete saliva to assist in process of digestion
6 months/3years
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Folds of tissue that extend horizontally from the uvula to the base of the tongue

36. Internal Jugular Vein
A line of tissue that extends from the tongue to the floor of the mouth
Canal or passage for fluid
Small head - low nasal bridge - thin upper lip - small mandible
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein

37. How many cusps does the second bicuspid have?
Study of prenatal growth and the developing process of an individual
Incremental line indicating trauma of birth
Two
A raised white line that runs parallel to where the teeth meet on the buccal mucosa

38. External Auditory Meatus
Outside surface Which is towards the cheek - on posterior teeth
Extends from the medial corner of the eye to the nasal cavity
Opening for the ear
Respiratory system - digestive system and glandular organs

39. Peg lateral
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Small head - low nasal bridge - thin upper lip - small mandible
Peg shaped crown with a smooth surface
Composed of mucosa and surrounds the necks of the teeth

40. Apposition
Portion of the lips where the skin meets the vermilion zone
Calcium salts are deposited into formed tooth
Secrete saliva to assist in process of digestion
Tissue covering the alveolar processes

41. Embryo
Pointed elongations of the pulp
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
Shed from the oral cavity
Two weeks thru 8th week

42. What is the purpose of permanent teeth?
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Cut - tear - and grind food
When the tissue becomes inflamed
32

43. Enamel Lamellae
Narrow long enamel tuft
Largest division of the trigeminal nerve
Separation of the upper lip ( 1 of 1000 live births)
Where the ectoderm layer matures into the enamel

44. Apical Fiber Group
Triangular space in the gingival direction when two adjacent teeth are in contact
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
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Resists forces that try to pull the tooth outward

45. Primary palate
Extends from the mucogingival junction to the gingival groove
Oval depression of temporal bone in condyloid process
Forms a large cavity above the roots of the maxillary molars
Separates the developing oral cavities from the nasal cavities

46. Rami
Where the ramus meets the body of the mandible on the outside border
Trigeminal - facial - glossopharyngeal - hypoglossal
Two vertical extensions of the mandible
Convex area on the lingual surface near gingiva

47. What are the extrinsic muscles of the tongue responsible for?
Assist in the movement and functioning of the tongue
Outside surface Which is towards the cheek - on posterior teeth
9 weeks thru birth
Forms after the completion of the apical foramen

48. Triangular Ridge
What divides the tongue in half and runs from the base to the tip of the tongue
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Moves the head backward and laterally
A faint line going from the ala of the nose to the corner of the mouth

49. Anatomical root
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Lift the hyoid bone and assist in opening the mouth
Portion covered with cementum

50. Ligament
Disk that acts like a cushion between the temporal bone and the condyloid process
Shaping the tongue during speech - mastication and swallowing
Band of fibrous tissue which attaches bone to bone
Incremental line indicating trauma of birth