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. When do the tooth buds appear?
Forms after the completion of the apical foramen
Week 11
Resists intrusive forces that try to push the tooth inwards
Two vertical extensions of the mandible

2. Function of Platysma
Draws down the mandible and corners of the mouth
A bony projection that separates each socket
Clear fluid secreted by the salivary and mucous glands throughout the mouth
When cells rapidly increase in number

3. Torus Mandibularis
Outside surface Which is towards the lips
Excess bone formations under the tongue on the alvellar bone
Pointed elongations of the pulp
Intervating the anterior teeth and the labial gingiva

4. Secondary palate
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
Forms the remaining 2/3 of the hard and soft palate uvula
Allow flexibility during mastication - speech
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged

5. Alveolar Crest
A line of demarcation between the attached gingiva and alveolar mucosa
Covering over the enamel that is left over from the epithelium ameloblasts
Two cortical bone plates that come together between each tooth
Cells From which connective tissue evolve

6. Torus
Small raised projections where taste buds are located
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Cheek bones--the most breakable bone in the body
Excess bone in the middle of the palate

7. Horizontal Fiber Group
Composed of mucosa and surrounds the necks of the teeth
Functions the same as the alveolar cfg; originate in alveolar bone
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Secrete saliva to assist in process of digestion

8. Evanesce
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
To dissolve
The first predentin that is formed and matures within the tube
The portion of the tooth that meets the gingiva

9. Landmarks
The space between the unattached gingiva and the tooth
Assist in depressing the mandible and elevating the tongue
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements

10. Lines of Retzius
When cells rapidly increase in number
The line of demarcation between the attached gingiva and the marginal gingiva
Largest of the branches of the external carotid artery; supplies facial structure
Incremental lines around the layers of the enamel matrix

11. Stomedeum
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Found only in multi-rooted teeth and resists rotational forces
Origin - fixed point - insertion - movable point
Primitive mouth

12. What are the two ways the TMJs move?
Wings of the sphenoid bone
Retracts or depresses the tongue
Cluster of tissue that manufactures and secrets fluid
Hinge motion and gliding movement

13. Osteoclasts
Enamel is thinner - pulp chamber is smaller -
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Cells From which connective tissue evolve
Secrete saliva to assist in process of digestion

14. Vestibule Fornix
Molaris meaning millstone
The deepest point of the vestibule
Where the proximal sides of two teeth come together and touch
Moves the head backward and laterally

15. When do the primary teeth begin erupting and are fully erupted?
6 months/3years
Small dark brushes
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Drains the maxiallary artery and superficial temporal arteries

16. What is the latin word for molar?
Molaris meaning millstone
Greater - lesser - naso palatine nerves
Where the ramus meets the body of the mandible on the outside border
Respiratory system - digestive system and glandular organs

17. Dentinal Tubules
Tubules that pass through the entire surface of the dentin
Chewing and swallowing food
Wings of the sphenoid bone
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

18. Pulpitis
No bicuspids/ no 3rd molars
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
When the tissue becomes inflamed
Excess bone in the middle of the palate

19. Function of Styloglossus
Small linear depression
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
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Retracts the tongue and raises the tip of the tongue

20. Oblique Ridge
The connective tissue of the marginal gingiva
The inner surface of the cheeks
Cells develop into different tissues
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth

21. Buccal Mucosa
The inner surface of the cheeks
Synovial fluid
Resists forces that try to pull the tooth outward
Drains the maxiallary artery and superficial temporal arteries

22. Linea Alba
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
To bulge of curve outward
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Tubules that pass through the entire surface of the dentin

23. Soft Palate
Scroll like bones outside the nasal cavaties
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Covers muscle tissue in the posterior portion of the palate
Forms the bulk of the tooth

24. Zygomatic nerve
Forms after the completion of the apical foramen
Full deep rich sound in nasal cavity
Elevated are of enamel that forms the Mesial and distal borders
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch

25. Marginal Ridges
Elevated are of enamel that forms the Mesial and distal borders
Supplies blood to the roots and periodontal ligaments of the interior teeth
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Upper arch of the teeth

26. Contact Area
Sharp projection on the under surface of the temporal bone
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Where the proximal sides of two teeth come together and touch

27. Meniscus
Disk that acts like a cushion between the temporal bone and the condyloid process
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Drains the facial structures beginning near the eye and descending toward the mandible
Tissue covering the alveolar processes

28. Morpho Differentiation
Forming organ takes shape and resembles the shape of a bell
Drains the floor of the mouth
Opening in the mouth below the orbit on the maxillary bone
Stained growth rings in dentin

29. Anomalies
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
Trigeminal - facial - glossopharyngeal - hypoglossal
Extreme variations from the norm
Supplies blood to the brain and the eyes

30. Histology
The development of different cells
The study of the microscopic structure and functions of tissues
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Origin of the tooth

31. Circumvallate Papillae
Divides the crown and the root
An extension of an unattached gingiva and the tooth
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10

32. What are the eight landmarks of the face?
Located behind the ramus of the mandible and branches into five arteries
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves

33. Enamel Spindle
The space between the unattached gingiva and the tooth
To dissolve
Short tubules that seem to crossover to the enamel
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors

34. Gums
Tissue covering the alveolar processes
Indented
Opening for the ear
Trigeminal - facial - glossopharyngeal - hypoglossal

35. Fissure
The mandibular first premolar
The inner surface of the cheeks
Aid in attaching the gingiva to the alveolar bone
Resulting from an imperfect union where the lobes come together

36. Stippled
Shed from the oral cavity
Healthy gingival tissue with an orange texture
Disk that acts like a cushion between the temporal bone and the condyloid process
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries

37. Pit
Wings of the sphenoid bone
Small bony projections surrounding the lingual foramen
Pulverizing or chewing surface
Place where the groove comes together or fissures cross

38. Palatine Bones
Joined at the midline and are often referred to as the median Palatine suture
Synovial fluid
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Oval structures that are located on the dorsal surface of the tongue

39. Vermilion Border
Incremental lines around the layers of the enamel matrix
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
Portion of the lips where the skin meets the vermilion zone
(free gingiva) surrounds the teeth

40. Oblique Fiber Group
The outer edge of the nostril
Incremental lines around the layers of the enamel matrix
Cells that form cementum
Resists intrusive forces that try to push the tooth inwards

41. Function of mylohyoid
The space between the unattached gingiva and the tooth
Molaris meaning millstone
Assist in depressing the mandible and elevating the tongue
Drains the facial structures beginning near the eye and descending toward the mandible

42. When do oral and nasal cavity separate and palate develop?
Week 12
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Located in a depressed area between the pillars
Joined at the midline and are often referred to as the median Palatine suture

43. Mesial
Bifurcated/ 5 cusps
Surface towards the midline
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Enamel is thinner - pulp chamber is smaller -

44. What are the intrinsical muscles of the tongue responsible for?
Three bulges on the incisal edge
Shaping the tongue during speech - mastication and swallowing
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
The outer edge of the nostril

45. Lingual
The fixed attachment of a muscle
Inside surface Which is towards the tongue - on anterior teeth
The connective tissue of the marginal gingiva
2 small raised folds of tissue where the lingual frenum attaches

46. Cervical line
Surface away from the midline
Divides the crown and the root
1500 millimeters
Resists intrusive forces that try to push the tooth inwards

47. What teeth do the deciduous (baby) tooth not include?
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Growth from the oral epithelium that gives rise to the tooth buds
An enclosed area that matures into dentin - cementum and pulp
No bicuspids/ no 3rd molars

48. Cuspid
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Third tooth from the midline
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Functions the same as the alveolar cfg; originate in alveolar bone

49. Gingival Hyperplasia
Of or pertaining to area surrounding naval cavity
Lower arch of the teeth
An overgrowth of the gingival tissue
A pocket formed by the soft tissue of cheeks and gingiva

50. Facial Vein
The deepest point of the vestibule
Resists forces that try to pull the tooth outward
Where the proximal sides of two teeth come together and touch
Drains the facial structures beginning near the eye and descending toward the mandible