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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. What is the purpose of permanent teeth?
Cut - tear - and grind food
Slight ridges on the cervical third of certain teeth that extend mesiodistally
The largest of the salivary glands which lie just below and in front of the ear
The ridges that run horizontally across the hard palate behind the incisive papilla

2. Cusps
Drains the superficial veins of the face and neck into the subclavian vein
Enamel is thinner - pulp chamber is smaller -
Branches off the inferior alveolar artery before intering the mandibular canal
Pointed or rounded mounds on the crown of the tooth

3. Maxilla
Primitive mouth
Third tooth from the midline
Largest facial bone with two sections joined at the median suture
Study of the structure and form of the teeth

4. Incisive Papilla
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Wings of the sphenoid bone
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Occlusal surface of the posterior tooth

5. Fetus
9 weeks thru birth
Mildest form of cleft palate
Disk that acts like a cushion between the temporal bone and the condyloid process
Appears to be loosely attached - covering the alveolar bone.

6. How much saliva is produced daily?
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
1500 millimeters
Creates the wall of the dentinal tubule
Largest facial bone with two sections joined at the median suture

7. Stensens' Duct (aka Parotid)

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8. Furcation
The mandibular molars
Cells that form dentin
Dividing point of a multi-rooted tooth
Molars

9. Function of Trapezius
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Moves the head backward and laterally
Oval depression of temporal bone in condyloid process
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator

10. Mastication
Fleshy elevation under the tongue
Chewing and swallowing food
Study of prenatal growth and the developing process of an individual
Indented

11. 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
Origin - fixed point - insertion - movable point
Portion of the lips that are red
Papillae that give the tongue the strawberry effect

12. What are the largest and strongest of the mandibular teeth
A raised area of tissue laying behind the maxillary central incisors on the hard palate
The mandibular molars
Peg shaped crown with a smooth surface
A faint line going from the ala of the nose to the corner of the mouth

13. Embryo
Two weeks thru 8th week
Forms the bulk of the tooth
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
The first predentin that is formed and matures within the tube

14. Contact Area
Short tubules that seem to crossover to the enamel
Demonstrates a disturbance in the body metabolism
Incremental lines around the layers of the enamel matrix
Where the proximal sides of two teeth come together and touch

15. Mixed Dentition
Joined at the midline and are often referred to as the median Palatine suture
Two weeks thru 8th week
20
A period of both primary teeth and permeant teeth are in the dentition

16. Dentinal Hypersensitivity
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
Dentin found between the tubules
Located in a depressed area between the pillars
When the dentin is exposed

17. Fungiform Papillae
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
The internal surface at the center of the mandible
Papillae that give the tongue the strawberry effect
Primitive mouth

18. Incisal third
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
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Radiates from the developmental groove
Rounded depression on a tooth

19. Gestational period
9 months (5 months ultrasound to tell sex)
Week 12
12 years
Opening for the ear

20. Neonatal line
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
Incremental line indicating trauma of birth
Largest facial bone with two sections joined at the median suture
Folds of tissue to the the lingual veins

21. Hard Palate
Three bulges on the incisal edge
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
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Where the ectoderm layer matures into the enamel

22. Circumpulpal Dentin
The layer of dentin that surrounds the pulp
Peg shaped crown with a smooth surface
Calcified masses of dentin
Constricts the nasopharyngeal passage and elevates the larynx

23. Torus
Excess bone in the middle of the palate
Teeth after cuspids
1500 millimeters
Constricts the nasopharyngeal passage and elevates the larynx

24. How many cusps/ roots do the 2/3rd maxillary molars have?
Forms the bulk of the tooth
Cells that form cementum
Teeth will not erupt in proper position
Three cusps/ trifurcated

25. External Oblique Ridge
Second teeth next to central incisors
Tooth emerges from gum tissue and becomes visible
Follows the length of the body of the mandible past the last tooth and up to the ramus
Study of the structure and form of the teeth

26. What is the maxillary cuspid known as?
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
The cornerstone of the mouth
When the dentin is exposed
Folds of tissue to the the lingual veins

27. Articular Disc
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Canal or passage for fluid
Small dark brushes

28. Ala of the Nose
To dissolve
When the tissue becomes inflamed
The outer edge of the nostril
Extreme variations from the norm

29. Foliate Papillae
Week 12
Raised vertical folds of tissue on the lateral border of the tongue
The ridges that run horizontally across the hard palate behind the incisive papilla
Compact bone plate of the facial and lingual surfaces

30. Sharpey's Fibers
Third tooth from the midline
Covering over the enamel that is left over from the epithelium ameloblasts
Papillae that give the tongue the strawberry effect
Acts as anchors between the alveolar bone and the tooth

31. Endoderm
Respiratory system - digestive system and glandular organs
Cells From which connective tissue evolve
Opening for the ear
A shallow v-shaped depression located below the bottom of the nose and above the lips

32. How can you tell if someone has cancer by looking at the tongue?
4th week
A pocket formed by the soft tissue of cheeks and gingiva
Looking at the border of the tongue
Largest of the branches of the external carotid artery; supplies facial structure

33. Maxillary Sinus
Forms a large cavity above the roots of the maxillary molars
A junction or center of veins that directly or indirectly drain a vast area
Mucosa that covers the alveolar bone
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar

34. Pterygoid plexus of the veins
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Three bulges on the incisal edge
A junction or center of veins that directly or indirectly drain a vast area
Substances between cells

35. What are the characteristics of permanent teeth?
Enamel is thinner - pulp chamber is smaller -
To dissolve
To bulge of curve outward
Vertical groove on the midline of the upper lip

36. Stomedeum
Primitive mouth
4 cusps/ bifurcated
Raised vertical folds of tissue on the lateral border of the tongue
Bifurcated/ 5 cusps

37. Muscle Insertion
The study of the microscopic structure and functions of tissues
The moveable attachment of the muscle
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
To bulge of curve outward

38. Concave
Band of fibrous tissue which attaches muscle to bone
Where the ectoderm layer matures into the enamel
Three bulges on the incisal edge
Indented

39. Supplemental Groove
Convex area on the lingual surface near gingiva
Resulting from an imperfect union where the lobes come together
Separates the developing oral cavities from the nasal cavities
Radiates from the developmental groove

40. Mental Nerve Branch
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Largest division of the trigeminal nerve
Developmental segment of a tooth
Three cusps/ trifurcated

41. Deep Facial Veins
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Curve outward
An extension of an unattached gingiva and the tooth
Act to maintain the gingival integrity of the marginal gingiva

42. Frenum
A small projection in the middle of the upper lip
Located behind the ramus of the mandible and branches into five arteries
Molaris meaning millstone
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip

43. Occlusal
Pulverizing or chewing surface
Short tubules that seem to crossover to the enamel
When the tissue becomes inflamed
Supplies blood to the face and oral cavity

44. Purpose of premolars
Portion of the lips where the skin meets the vermilion zone
A triangular area located behind the last molar
The development of different tissues
Used to pulverize food

45. Nasal-Labial Groove
4/5 cusps/ 3 roots
Quarters of the teeth
Band of fibrous tissue which attaches bone to bone
A faint line going from the ala of the nose to the corner of the mouth

46. Lacrimal Bones
The moveable attachment of the muscle
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Occurs in unusual ways and distorted crowns may appear

47. What are the two muscles of the soft palate?
When the dentin is exposed
The area on the crown of the tooth that is nearest the gingival
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Palatoglossus - palatopharyngeal

48. Hyoid Bone
Slight ridges on the cervical third of certain teeth that extend mesiodistally
The development of different forms
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
Inside of the maxillary teeth

49. Gingiva
A dense tissue covered with mucous membrane that can withstand chewing
Fleshy elevation under the tongue
Permeante teeth replace the primary teeth
Pulls the hyoid bone and the tongue anteriorly

50. Interdental Septum
A line of demarcation between the attached gingiva and alveolar mucosa
4th week
A bony projection that separates each socket
Extends from the medial corner of the eye to the nasal cavity