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. Cleft Palate
Ligaments and muscles of mastication
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Cluster of tissue that manufactures and secrets fluid
Creates the wall of the dentinal tubule

2. Circumvallate Papillae
Maxillary third molar
Greater - lesser - naso palatine nerves
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Forms the bulk of the tooth

3. Circular Ligament Fiber Groups
Circle and tighten the gingival margin around the neck of the tooth
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Cells From which connective tissue evolve
Forms a large cavity above the roots of the maxillary molars

4. Common Carotid
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Short tubules that seem to crossover to the enamel
Arteries supplying blood to most of the head and the neck

5. Tubercle of the Lip
Excess dryness of the mouth
A small projection in the middle of the upper lip
Where the ramus meets the body of the mandible on the outside border
Two weeks thru 8th week

6. Embryo
Week 12
Lift the hyoid bone and assist in opening the mouth
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Two weeks thru 8th week

7. Dentinal Fluid
Tissue fluid surrounding the cell membrane of the odontoblast
Papillae that give the tongue the strawberry effect
Full deep rich sound in nasal cavity
Retracts or depresses the tongue

8. Osteoclasts
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Mastication - aids in speech - influence facial structure - chewing surfaces
Forms a large cavity above the roots of the maxillary molars
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct

9. What is the longest tooth in the mandibular arch?
Ligaments and muscles of mastication
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
The mandibular first premolar

10. When do the primary teeth begin erupting and are fully erupted?
Teeth will not erupt in proper position
No bicuspids/ no 3rd molars
6 months/3years
Quarters of the teeth

11. Retromolar Area
Digstric - Mylohyoid - stylohyoid - geniohyoid
The bone that separates the root on a tooth
Shed from the oral cavity
A triangular area located behind the last molar

12. Where is the palate located?
Causes a thickening of the cementum around the apex
Smaller branch that ennervates the soft palate uvula and tonsils
Inside of the maxillary teeth
Excess bone formations under the tongue on the alvellar bone

13. Function of Platysma
Supplies blood to the face and oral cavity
Assists in elevating the chin
Draws down the mandible and corners of the mouth
Resists forces that try to pull the tooth outward

14. Inferior Nasal Conchae
Scroll like bones outside the nasal cavaties
Enamel is thinner - pulp chamber is smaller -
Covers muscle tissue in the posterior portion of the palate
Demonstrates a disturbance in the body metabolism

15. Dental Sac
The study of the microscopic structure and functions of tissues
Developmental segment of a tooth
An enclosed area that matures into dentin - cementum and pulp
When the tissue becomes inflamed

16. Muscle Insertion
1500 millimeters
The moveable attachment of the muscle
4th week
Elevated are of enamel that forms the Mesial and distal borders

17. Cemental Spurs
Lift the hyoid bone and assist in opening the mouth
Found near the cementoenamel junction
Corners of the mouth
The development of different cells

18. Lingual Foramen
Folds of tissue to the the lingual veins
Covers muscle tissue in the posterior portion of the palate
The internal surface at the center of the mandible
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves

19. Midline
Middle line of the teeth
12 years
An overgrowth of the gingival tissue
Intervating the anterior teeth and the labial gingiva

20. Fordyce's Spots
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Pulls the hyoid bone and the tongue anteriorly
Drains the floor of the mouth
Small yellowish glands on the labial mucosa

21. Morpho Differentiation
Creates the wall of the dentinal tubule
Forming organ takes shape and resembles the shape of a bell
When the dentin is exposed
Wearing away of the incisal or occlusal surfaces of the tooth

22. Pit
Place where the groove comes together or fissures cross
Canal or passage for fluid
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Fleshy elevation under the tongue

23. How many cusps/ roots do the maxillary first molars have?
4/5 cusps/ 3 roots
Extreme variations from the norm
Inner portion of the enamel rod
Bicuspids

24. Mantle Dentin
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 covered with cementum
Teeth will not erupt in proper position
The first predentin that is formed and matures within the tube

25. Morpho differentiation
The development of different forms
Band of fibrous tissue which attaches bone to bone
32
2 to 3 pints

26. Marginal GIngiva
Composed of mucosa and surrounds the necks of the teeth
(free gingiva) surrounds the teeth
Calcium salts are deposited into formed tooth
Surface towards the midline

27. Attrition
Respiratory system - digestive system and glandular organs
Wearing away of the incisal or occlusal surfaces of the tooth
Cells that form cementum
Oval depression of temporal bone in condyloid process

28. Maxillary Artery
Assist in the movement and functioning of the tongue
Largest of the branches of the external carotid artery; supplies facial structure
Where the proximal sides of two teeth come together and touch
Extends from the medial corner of the eye to the nasal cavity

29. Cusps
Pointed or rounded mounds on the crown of the tooth
Drains the superficial veins of the face and neck into the subclavian vein
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Origin - fixed point - insertion - movable point

30. Occlusal
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Cheek bones--the most breakable bone in the body
Wearing away of the incisal or occlusal surfaces of the tooth
Pulverizing or chewing surface

31. Alveolar Crest Fiber Group
Responsible for laying down the enamel matrix into place
Maxillary third molar
Function to resist rotational forces and tilting
The fixed attachment of a muscle

32. What is the maxillary cuspid known as?
Enamel forming cells
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
The cornerstone of the mouth
Place where the groove comes together or fissures cross

33. Periodontium
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Canal or passage for fluid
(free gingiva) surrounds the teeth
Pulls the hyoid bone and the tongue anteriorly

34. Mental Artery
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
32
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
Tissue fluid surrounding the cell membrane of the odontoblast

35. Mucosa
The area on the crown of the tooth that is nearest the gingival
Platysma - trapezius - sternocleidomastoid
Rounded depression on a tooth
Lining covers inside of the oral cavity

36. What are the 4 taste senses and where are they located?
When cells rapidly increase in number
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Shed from the oral cavity
Looking at the border of the tongue

37. Duct
Canal or passage for fluid
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Opening for the ear
Cheek bones--the most breakable bone in the body

38. Cleft Lip
Healthy gingival tissue with an orange texture
Separation of the upper lip ( 1 of 1000 live births)
Pulverizing or chewing surface
Digstric - Mylohyoid - stylohyoid - geniohyoid

39. What are the 12 landmarks of the oral cavity?

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

40. Stippled
Shaping the tongue during speech - mastication and swallowing
Healthy gingival tissue with an orange texture
Follows the inside of the ramus and the body of the mandible
Assists in elevating the chin

41. Palatine Rugae
The deepest point of the vestibule
The ridges that run horizontally across the hard palate behind the incisive papilla
Largest division of the trigeminal nerve
Band of fibrous tissue which attaches muscle to bone

42. Xerostomia
4th week
Excess dryness of the mouth
The deepest point of the vestibule
When the surface of the teeth becomes grooved

43. Mandible Arch
Small curved lines that run parellel to the CEJ
Lower arch of the teeth
Compact bone plate of the facial and lingual surfaces
Causes a thickening of the cementum around the apex

44. Dentogingival Fiber Groups
An extension of an unattached gingiva and the tooth
Pulverizing or chewing surface
Allow flexibility during mastication - speech
Act to maintain the gingival integrity of the marginal gingiva

45. Interradicular Septum
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
The bone that separates the root on a tooth
Shed from the oral cavity
Bicuspids

46. Alveolar Mucosa
To dissolve
Follows the inside of the ramus and the body of the mandible
Mucosa that covers the alveolar bone
A flap of tissue on the on the buccal mucosa

47. Mylohyoid Artery
Branches off the inferior alveolar artery before intering the mandibular canal
An extension of an unattached gingiva and the tooth
Compact bone plate of the facial and lingual surfaces
Resists intrusive forces that try to push the tooth inwards

48. What are the only permeant teeth that are not succedaneous?
Vertical groove on the midline of the upper lip
Trigeminal - facial - glossopharyngeal - hypoglossal
Molars
The teeth located at the back of the mouth

49. Cementoblast
The line of demarcation between the attached gingiva and the marginal gingiva
Enamel forming cells
Cells that form cementum
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx

50. How many cusps/ roots do the 2/3rd maxillary molars have?
Found only in multi-rooted teeth and resists rotational forces
Primary and permanent
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Three cusps/ trifurcated