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. Stensens' Duct (aka Parotid)

2. When does the maxillary second molar erupt?
Assist in the movement and functioning of the tongue
12 years
Platysma - trapezius - sternocleidomastoid
The largest of three openings located in the posterior region of the hard palate

3. If Palate not fused
Forms the remaining 2/3 of the hard and soft palate uvula
Maxillary first molar
4th week
Teeth will not erupt in proper position

4. Circumvallate Papillae
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
The moveable attachment of the muscle
Primary embryonic mesoderm layer that develops during the morpho differentiation period

5. Exfoliated
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Interdental ligament
Upper arch of the teeth
Shed from the oral cavity

6. Mesenchyme Tissue
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Supplies blood to the face and oral cavity
Calcified masses of dentin
Teeth will not erupt in proper position

7. What are the 3 branches of the mandibular nerve branch?
Maxillary third molar
Buccal - lingual - and inferior alveolar
4th week
Appears to be loosely attached - covering the alveolar bone.

8. What are the 3 branches of the pterygopalatine nerve branch?
Excess bone in the middle of the palate
Greater - lesser - naso palatine nerves
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Constricts the nasopharyngeal passage and elevates the larynx

9. Mesoderm
Forms into dentin - cementum and pulp of the teeth
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Drains the facial structures beginning near the eye and descending toward the mandible
The ridges that run horizontally across the hard palate behind the incisive papilla

10. Purpose of premolars
Used to pulverize food
Tooth emerges from gum tissue and becomes visible
Ligaments and muscles of mastication
The moveable attachment of the muscle

11. Gingival Sulcus
The space between the unattached gingiva and the tooth
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Lift the hyoid bone and assist in opening the mouth
A rounded area beyond the last posterior maxillary tooth

12. Taste Buds
Corners of the mouth
Portion of the root seen in the oral cavity
Oval structures that are located on the dorsal surface of the tongue
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx

13. Cervical line
A horseshoe shaped groove that follow the curve of the dental arch
Two cortical bone plates that come together between each tooth
Disk that acts like a cushion between the temporal bone and the condyloid process
Divides the crown and the root

14. Retro Mandibular Vein
Drains the maxiallary artery and superficial temporal arteries
The line of demarcation between the attached gingiva and the marginal gingiva
Narrow long enamel tuft
Constricts the nasopharyngeal passage and elevates the larynx

15. Inferior Nasal Conchae
Inner portion of the enamel rod
Synovial fluid
Scroll like bones outside the nasal cavaties
Clear fluid secreted by the salivary and mucous glands throughout the mouth

16. Attrition
Permeante teeth replace the primary teeth
Wearing away of the incisal or occlusal surfaces of the tooth
Vertical groove on the midline of the upper lip
Drains the Pterygoid plexus of the veins

17. Function of Styloglossus
Acts as anchors between the alveolar bone and the tooth
Short tubules that seem to crossover to the enamel
Inner portion of the enamel rod
Retracts the tongue and raises the tip of the tongue

18. Infraorbital Foramen
Opening in the mouth below the orbit on the maxillary bone
Lower arch of the teeth
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Week 12

19. Mucosa
Upper arch of the teeth
Lining covers inside of the oral cavity
A triangular area located behind the last molar
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine

20. Horizontal Fiber Group
Surface away from the midline
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Raised vertical folds of tissue on the lateral border of the tongue
Functions the same as the alveolar cfg; originate in alveolar bone

21. Function of Geniohyoid
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
Pulls the hyoid bone and the tongue anteriorly
Cluster of tissue that manufactures and secrets fluid

22. Maxillary vein
The largest of the salivary glands which lie just below and in front of the ear
Cells From which connective tissue evolve
Short tubules that seem to crossover to the enamel
Drains the Pterygoid plexus of the veins

23. Muscle Insertion
A triangular area located behind the last molar
Folds of tissue that extend horizontally from the uvula to the base of the tongue
The moveable attachment of the muscle
(free gingiva) surrounds the teeth

24. Mastoid process
Follows the length of the body of the mandible past the last tooth and up to the ramus
Small dark brushes
Bony projection found on the bottom border of the temporal bone
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements

25. Oblique Ridge
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Outside surface Which is towards the lips
Second teeth next to central incisors
Small grooves noted on some teeth

26. Lacrimal Bones
Rounded depression on a tooth
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Occurs in unusual ways and distorted crowns may appear

27. Pulpitis
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
When the tissue becomes inflamed

28. Glenoid Fossa
Corners of the mouth
The tip of the chin
Largest division of the trigeminal nerve
Oval depression of temporal bone in condyloid process

29. TMJ bones are bathed In what solution?
Origin of the tooth
9 weeks thru birth
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Synovial fluid

30. Uvula
Appears to be loosely attached - covering the alveolar bone.
The cornerstone of the mouth
When the surface of the teeth becomes grooved
A projection that extends off the back of the soft palate

31. Mixed Dentition
Formed by the uniting of lobes during development of crown
A period of both primary teeth and permeant teeth are in the dentition
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle

32. Lamina Dura
Supplies blood to the face and oral cavity
A line that represents the alveolus bone lining the socket
The portion of the tooth that meets the gingiva
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum

33. Concave
A triangular area located behind the last molar
Supplies blood to the brain and the eyes
Three cusps/ trifurcated
Indented

34. Cleft Palate
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
Drains the Pterygoid plexus of the veins
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Located in a depressed area between the pillars

35. Lingual
Inside surface Which is towards the tongue - on anterior teeth
The cornerstone of the mouth
A junction or center of veins that directly or indirectly drain a vast area
Forms into dentin - cementum and pulp of the teeth

36. Cuspid
A junction or center of veins that directly or indirectly drain a vast area
Cheek bones--the most breakable bone in the body
Third tooth from the midline
A horseshoe shaped groove that follow the curve of the dental arch

37. Occlusal
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Pulverizing or chewing surface
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Forms the bulk of the tooth

38. Papilla
Synovial fluid
Small raised projections where taste buds are located
Short tubules that seem to crossover to the enamel
Resists forces that try to pull the tooth outward

39. Anatomical root
Cells develop into different tissues
20
Portion covered with cementum
Looking at the border of the tongue

40. Labial Commissures
The corners of the mouth where the top and bottom lip meet
Appears to be loosely attached - covering the alveolar bone.
Full deep rich sound in nasal cavity
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip

41. Hypercementosis
Extreme variations from the norm
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Causes a thickening of the cementum around the apex
The connective tissue of the marginal gingiva

42. Pterygoid Artery
An extension of an unattached gingiva and the tooth
Extends from the medial corner of the eye to the nasal cavity
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
An enclosed area that matures into dentin - cementum and pulp

43. Lingual Frenum
Supplies blood to the brain and the eyes
A line of tissue that extends from the tongue to the floor of the mouth
Forms a large cavity above the roots of the maxillary molars
Responsible for laying down the enamel matrix into place

44. Stomedeum
4th week
Primitive mouth
Dividing point of a multi-rooted tooth
Assist in the movement and functioning of the tongue

45. Sublingual Caruncles
9 weeks thru birth
Circle and tighten the gingival margin around the neck of the tooth
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
2 small raised folds of tissue where the lingual frenum attaches

46. Secondary palate
Substances between cells
Follows the inside of the ramus and the body of the mandible
Circle and tighten the gingival margin around the neck of the tooth
Forms the remaining 2/3 of the hard and soft palate uvula

47. How many cusps/ roots do the 2/3rd maxillary molars have?
Draws down the mandible and corners of the mouth
Three cusps/ trifurcated
Convex area on the lingual surface near gingiva
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

48. Maxillary Artery
Separation of the upper lip ( 1 of 1000 live births)
Largest of the branches of the external carotid artery; supplies facial structure
Triangular space in the gingival direction when two adjacent teeth are in contact
The study of the microscopic structure and functions of tissues

49. Gestational period
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
Supplies blood to the brain and the eyes
9 months (5 months ultrasound to tell sex)

50. When do the primary teeth begin erupting and are fully erupted?
(free gingiva) surrounds the teeth
Largest division of the trigeminal nerve
6 months/3years
Forms a large cavity above the roots of the maxillary molars