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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. Greater Palatine Foramen
Fleshy elevation under the tongue
Substances between cells
Pulls the hyoid bone and the tongue anteriorly
The largest of three openings located in the posterior region of the hard palate

2. Internal Jugular Vein
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Drains the maxiallary artery and superficial temporal arteries
Compact bone plate of the facial and lingual surfaces
Acts as anchors between the alveolar bone and the tooth

3. Vestibule
Assist in the movement and functioning of the tongue
Intervating the anterior teeth and the labial gingiva
A pocket formed by the soft tissue of cheeks and gingiva
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct

4. Median Sulcus
Mastication - aids in speech - influence facial structure - chewing surfaces
Slight ridges on the cervical third of certain teeth that extend mesiodistally
A line of tissue that extends from the tongue to the floor of the mouth
What divides the tongue in half and runs from the base to the tip of the tongue

5. How much saliva do the salivary glands produce in 24 hours?
Initiation of the tooth begins
2 to 3 pints
Middle line of the teeth
Dentin found between the tubules

6. Uvula
Compact bone plate of the facial and lingual surfaces
Corners of the mouth
Middle line of the teeth
A projection that extends off the back of the soft palate

7. Torus Mandibularis
Excess bone formations under the tongue on the alvellar bone
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Of or pertaining to area surrounding naval cavity
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface

8. Sulingual Folds
Wearing away of the incisal or occlusal surfaces of the tooth
The deepest point of the vestibule
A line of demarcation between the attached gingiva and alveolar mucosa
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue

9. Gestational period
9 months (5 months ultrasound to tell sex)
Duct located on the parotid papilla
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
The development of different forms

10. Peg lateral
What divides the tongue in half and runs from the base to the tip of the tongue
Mandibular central incisors
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Peg shaped crown with a smooth surface

11. Taste Buds
(free gingiva) surrounds the teeth
Middle two teeth in the mouth
Where the proximal sides of two teeth come together and touch
Oval structures that are located on the dorsal surface of the tongue

12. What is the longest tooth in the mandibular arch?
The mandibular first premolar
Depresses the tongue
A bony projection that separates each socket
Oval depression of temporal bone in condyloid process

13. Sharpey's Fibers
Acts as anchors between the alveolar bone and the tooth
Maxillary first molar
Triangular space in the gingival direction when two adjacent teeth are in contact
The mandibular molars

14. Embrasure
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Bi-cuspids
Triangular space in the gingival direction when two adjacent teeth are in contact
Separates the developing oral cavities from the nasal cavities

15. What are the 3 branches of the pterygopalatine nerve branch?
Greater - lesser - naso palatine nerves
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
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
When the dentin is exposed

16. Tome's process
Responsible for laying down the enamel matrix into place
Developmental segment of a tooth
Study of the structure and form of the teeth
Tubules that pass through the entire surface of the dentin

17. Parotid glands
2 small raised folds of tissue where the lingual frenum attaches
The largest of the salivary glands which lie just below and in front of the ear
Chewing and swallowing food
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars

18. Nasmyths Membrane
Moves the head backward and laterally
Cells From which connective tissue evolve
Middle line of the teeth
Covering over the enamel that is left over from the epithelium ameloblasts

19. Triangular Ridge
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
4/5 cusps/ 3 roots
Middle two teeth in the mouth
The line of demarcation between the attached gingiva and the marginal gingiva

20. Posterior Teeth
Of or pertaining to area surrounding naval cavity
Middle line of the teeth
The teeth located at the back of the mouth
The largest of the salivary glands which lie just below and in front of the ear

21. What are the eight landmarks of the face?
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Growth from the oral epithelium that gives rise to the tooth buds
Located on the inside of the body of the ramus
Maxillary first molar

22. What is origin and What is insertion?
Vertical groove on the midline of the upper lip
Origin - fixed point - insertion - movable point
Conception thru the first two weeks
Found near the cementoenamel junction

23. Mixed Dentition
Growth from the oral epithelium that gives rise to the tooth buds
A period of both primary teeth and permeant teeth are in the dentition
Fleshy elevation under the tongue
Drains the floor of the mouth

24. What is the function of the buccle nerve branch?
Small raised projections where taste buds are located
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Conception thru the first two weeks
Middle two teeth in the mouth

25. Proliferation
Acts as anchors between the alveolar bone and the tooth
Drains the maxiallary artery and superficial temporal arteries
Enamel is thinner - pulp chamber is smaller -
Where the ectoderm layer matures into the enamel

26. Mastication
Quarters of the teeth
Small head - low nasal bridge - thin upper lip - small mandible
Chewing and swallowing food
Set of arches found farther in the back of the throat

27. What is the purpose of saliva?
Constricts the nasopharyngeal passage and elevates the larynx
Excess dryness of the mouth
Trigeminal nerve--because it ennervates the maxilla and the mandible
To lubricate the oral cavity and to moisten food

28. Sublingual Caruncles
Occurs in unusual ways and distorted crowns may appear
2 small raised folds of tissue where the lingual frenum attaches
The connective tissue of the marginal gingiva
Triferacated

29. What are the two muscles of the soft palate?
Palatoglossus - palatopharyngeal
6 years old
Pointed or rounded mounds on the crown of the tooth
Supplies blood to the roots and periodontal ligaments of the interior teeth

30. Ligament
Band of fibrous tissue which attaches bone to bone
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
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
Chewing and swallowing food

31. Attrition
Band of fibrous tissue which attaches bone to bone
Interdental ligament
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Wearing away of the incisal or occlusal surfaces of the tooth

32. Labial Commissures
Corners of the mouth
Tissue covering the alveolar processes
Formed by the fibroblast cells and secures the tooth in the socket
Tissue fluid surrounding the cell membrane of the odontoblast

33. Salivary Glands
Excess bone formations under the tongue on the alvellar bone
Band of fibrous tissue which attaches bone to bone
Cut - tear - and grind food
Secrete saliva to assist in process of digestion

34. How much saliva is produced daily?
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Incremental lines around the layers of the enamel matrix
1500 millimeters
Found only in multi-rooted teeth and resists rotational forces

35. Sphenoid
Moves the head backward and laterally
A bat shaped bone which forms the anterior portion of the skull
Maxillary first molar
Creates the wall of the dentinal tubule

36. What is the maxillary cuspid known as?
Quarters of the teeth
The cornerstone of the mouth
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Ligaments and muscles of mastication

37. External Oblique Ridge
Depresses the tongue
Follows the length of the body of the mandible past the last tooth and up to the ramus
Appears to be loosely attached - covering the alveolar bone.
Third tooth from the midline

38. Apical Fiber Group
Resists forces that try to pull the tooth outward
Small curved lines that run parellel to the CEJ
Forms the bulk of the tooth
Resists intrusive forces that try to push the tooth inwards

39. Function of mylohyoid
Molaris meaning millstone
Forms after the completion of the apical foramen
Located behind the ramus of the mandible and branches into five arteries
Assist in depressing the mandible and elevating the tongue

40. What are the 4 taste senses and where are they located?
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Tissue fluid surrounding the cell membrane of the odontoblast
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Primary embryonic mesoderm layer that develops during the morpho differentiation period

41. Lesser Palatine Foramen
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
The internal surface at the center of the mandible
Appears to be loosely attached - covering the alveolar bone.
To lubricate the oral cavity and to moisten food

42. Lacrimal Bones
Supplies blood to the brain and the eyes
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
A small projection in the middle of the upper lip
Upper arch of the teeth

43. Retro Mandibular Vein
Drains the maxiallary artery and superficial temporal arteries
The largest of the salivary glands which lie just below and in front of the ear
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
Portion of the root seen in the oral cavity

44. Dental Sac
9 months (5 months ultrasound to tell sex)
Peg shaped crown with a smooth surface
An enclosed area that matures into dentin - cementum and pulp
Forms into dentin - cementum and pulp of the teeth

45. What are the only permeant teeth that are not succedaneous?
Molars
6 months/3years
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Small raised projections where taste buds are located

46. Dentinal Hypersensitivity
Small bony projections surrounding the lingual foramen
When the dentin is exposed
Inner portion of the enamel rod
A shallow v-shaped depression located below the bottom of the nose and above the lips

47. Xerostomia
Excess dryness of the mouth
What divides the tongue in half and runs from the base to the tip of the tongue
10 days
Where the ectoderm layer matures into the enamel

48. What ligament is retained the longest during periodontal disease?
Smaller branch that ennervates the soft palate uvula and tonsils
Opening for the ear
Interdental ligament
Small raised projections where taste buds are located

49. lst and second premolars
Assist in the movement and functioning of the tongue
1500 millimeters
2 small raised folds of tissue where the lingual frenum attaches
Teeth after cuspids

50. Eruption
Corners of the mouth
Tooth emerges from gum tissue and becomes visible
Excess bone formations under the tongue on the alvellar bone
Bone that surrounds the root of the tooth