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. What is the largest cranial nerve and the most important to dental auxillaries and why?
Trigeminal nerve--because it ennervates the maxilla and the mandible
Middle two teeth in the mouth
A line of demarcation between the attached gingiva and alveolar mucosa
Vertical groove on the midline of the upper lip

2. Odontogenesis
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Shaping the tongue during speech - mastication and swallowing
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Origin of the tooth

3. External Oblique Ridge
Lower arch of the teeth
Follows the length of the body of the mandible past the last tooth and up to the ramus
The slightly raised line extending down the middle of the hard palate
Folds of tissue to the the lingual veins

4. Mental Nerve Branch
Drains the superficial veins of the face and neck into the subclavian vein
Retracts the tongue and raises the tip of the tongue
Largest division of the trigeminal nerve
To bulge of curve outward

5. Interdental Gingiva
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Forming organ takes shape and resembles the shape of a bell
Inside surface Which is towards the tongue - on anterior teeth
An extension of an unattached gingiva and the tooth

6. Infraorbital Foramen
A triangular area located behind the last molar
Lift the hyoid bone and assist in opening the mouth
Opening in the mouth below the orbit on the maxillary bone
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged

7. Interradicular Septum
The bone that separates the root on a tooth
10 days
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Fleshy elevation under the tongue

8. Lesser Palatine Foramen
Band of fibrous tissue which attaches muscle to bone
Scroll like bones outside the nasal cavaties
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Disk that acts like a cushion between the temporal bone and the condyloid process

9. Mental Artery
Developmental segment of a tooth
Smaller branch that ennervates the soft palate uvula and tonsils
Formed by the uniting of lobes during development of crown
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip

10. Furcation
Smaller branch that ennervates the soft palate uvula and tonsils
Act to maintain the gingival integrity of the marginal gingiva
20
Dividing point of a multi-rooted tooth

11. Cleft Palate
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)
Where the ectoderm layer matures into the enamel
Two cortical bone plates that come together between each tooth

12. Alveolus
Interdental ligament
1500 millimeters
Bone that surrounds the root of the tooth
Drains the facial structures beginning near the eye and descending toward the mandible

13. Enamel Spindle
Short tubules that seem to crossover to the enamel
Incremental lines around the layers of the enamel matrix
A projection that extends off the back of the soft palate
Radiates from the developmental groove

14. What are the intrinsical muscles of the tongue responsible for?
Cells From which connective tissue evolve
Triangular space in the gingival direction when two adjacent teeth are in contact
Shaping the tongue during speech - mastication and swallowing
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries

15. When does the maxillary first molar erupt?
Separation of the upper lip ( 1 of 1000 live births)
6 years old
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Extreme variations from the norm

16. Papilla
Small curved lines that run parellel to the CEJ
Radiates from the developmental groove
Small raised projections where taste buds are located
Drains the facial structures beginning near the eye and descending toward the mandible

17. Ameloblast
Lift the hyoid bone and assist in opening the mouth
Responsible for laying down the enamel matrix into place
Cut - tear - and grind food
Enamel forming cells

18. Muscle origine
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Outside surface Which is towards the cheek - on posterior teeth
The fixed attachment of a muscle
Teeth will not erupt in proper position

19. Tubercle of the Lip
Molaris meaning millstone
Genioglossus - hyoglossus - styloglossus - palatoglossus
A small projection in the middle of the upper lip
Wearing away of the incisal or occlusal surfaces of the tooth

20. Incisive Arteries
The corners of the mouth where the top and bottom lip meet
Supplies blood to the roots and periodontal ligaments of the interior teeth
Indented
A condition where the lower frenum attachment is very short/DDS/frenectomy

21. Gingival Hyperplasia
An overgrowth of the gingival tissue
Retracts the tongue and raises the tip of the tongue
A flap of tissue on the on the buccal mucosa
Study of the structure and form of the teeth

22. Meniscus
Dentin found between the tubules
9 months (5 months ultrasound to tell sex)
Disk that acts like a cushion between the temporal bone and the condyloid process
A line of tissue that extends from the tongue to the floor of the mouth

23. Oblique Fiber Group
Portion of the lips where the skin meets the vermilion zone
Bicuspids
Found near the cementoenamel junction
Resists intrusive forces that try to push the tooth inwards

24. Stenson's Duct
Surface away from the midline
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
Occlusal surface of the posterior tooth
Duct located on the parotid papilla

25. Vestibule
9 weeks thru birth
A pocket formed by the soft tissue of cheeks and gingiva
Two
Largest facial bone with two sections joined at the median suture

26. What teeth do the deciduous (baby) tooth not include?
Raised vertical folds of tissue on the lateral border of the tongue
An enclosed area that matures into dentin - cementum and pulp
No bicuspids/ no 3rd molars
Maxillary first molar

27. Landmarks
Located behind the ramus of the mandible and branches into five arteries
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Supportive fibers that anchor the tooth to the bone

28. Function of Geniohyoid
Pulls the hyoid bone and the tongue anteriorly
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
Study of the structure and form of the teeth
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar

29. Xygote
Conception thru the first two weeks
The space between the unattached gingiva and the tooth
6 years old
The corners of the mouth where the top and bottom lip meet

30. Ectoderm
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Draws down the mandible and corners of the mouth
Forms after the completion of the apical foramen
A raised white line that runs parallel to where the teeth meet on the buccal mucosa

31. Palantine Tonsils
The bone that separates the root on a tooth
A pocket formed by the soft tissue of cheeks and gingiva
Located in a depressed area between the pillars
To lubricate the oral cavity and to moisten food

32. Function of Palatopharyngeal
Constricts the nasopharyngeal passage and elevates the larynx
Week 11
Located behind the ramus of the mandible and branches into five arteries
Portion of the lips where the skin meets the vermilion zone

33. Purpose of premolars
Used to pulverize food
Corners of the mouth
To lubricate the oral cavity and to moisten food
Slight ridges on the cervical third of certain teeth that extend mesiodistally

34. Sharpey's Fibers
32
Pointed or rounded mounds on the crown of the tooth
Acts as anchors between the alveolar bone and the tooth
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors

35. Bud stage
Folds of tissue to the the lingual veins
Band of fibrous tissue which attaches muscle to bone
Initiation of the tooth begins
Greater - lesser - naso palatine nerves

36. Fordyce's Spots
Small yellowish glands on the labial mucosa
Middle line of the teeth
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
The largest of three openings located in the posterior region of the hard palate

37. What is the purpose of saliva?
To lubricate the oral cavity and to moisten food
The outer edge of the nostril
Full deep rich sound in nasal cavity
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx

38. Maxilla
Largest facial bone with two sections joined at the median suture
(free gingiva) surrounds the teeth
Drains the floor of the mouth
Folds of tissue to the the lingual veins

39. What are the 3 branches of the mandibular nerve branch?
The largest of the salivary glands which lie just below and in front of the ear
Buccal - lingual - and inferior alveolar
Biting edge of the teeth
Assist in depressing the mandible and elevating the tongue

40. Occlusal
The largest of the salivary glands which lie just below and in front of the ear
Pulverizing or chewing surface
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch

41. What are the 3 branches of the pterygopalatine nerve branch?
Act to maintain the gingival integrity of the marginal gingiva
The development of different forms
The cornerstone of the mouth
Greater - lesser - naso palatine nerves

42. Maxillary Arch
1500 millimeters
Bluish veins that run the length of the tongue
Upper arch of the teeth
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves

43. lst and second premolars
The inner surface of the cheeks
Teeth after cuspids
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine

44. 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
Secrete saliva to assist in process of digestion
Cells that form cementum
Excess bone in the middle of the palate

45. Periodontal Ligaments
The inner surface of the lips
Full deep rich sound in nasal cavity
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Formed by the fibroblast cells and secures the tooth in the socket

46. Function of Trapezius
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Compact bone plate of the facial and lingual surfaces
Moves the head backward and laterally
Portion of the lips where the skin meets the vermilion zone

47. Where is the palate located?
Inside of the maxillary teeth
Stained growth rings in dentin
Located in a depressed area between the pillars
Anterior to the ethmoid bone and part of the orbit (corners of the eye)

48. Foliate Papillae
Function to resist rotational forces and tilting
Vertical groove on the midline of the upper lip
Raised vertical folds of tissue on the lateral border of the tongue
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle

49. Inferior Alveolar Artery
Where the proximal sides of two teeth come together and touch
The disc becomes displaced
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Inside of the maxillary teeth

50. What are the extrinsic muscles of the tongue responsible for?
Oval depression of temporal bone in condyloid process
Fleshy elevation under the tongue
Assist in the movement and functioning of the tongue
Inside of the maxillary teeth