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Dental Assisting: Head And Neck Anatomy

Subjects : health-sciences, dentistry

Instructions:

Answer 50 questions in 15 minutes.
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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. Palatine Rugae
Contains six branches that supply blood to the pharynx muscles - soft palate tonsils - the posterior of the tongue - sub mandibular gland - muscles of the face - nasal septom - nose and the eyelids
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Inside of the maxillary teeth
The ridges that run horizontally across the hard palate behind the incisive papilla

2. Function of Geniohyoid
Substances between cells
Mucosa that covers the alveolar bone
Pulls the hyoid bone and the tongue anteriorly
A shallow v-shaped depression located below the bottom of the nose and above the lips

3. When do oral and nasal cavity separate and palate develop?
An extension of an unattached gingiva and the tooth
Small yellowish glands on the labial mucosa
Surface away from the midline
Week 12

4. Neonatal line
Study of prenatal growth and the developing process of an individual
To bulge of curve outward
Incremental lines around the layers of the enamel matrix
Incremental line indicating trauma of birth

5. Histo Differentation
Tissue fluid surrounding the cell membrane of the odontoblast
Small grooves noted on some teeth
The development of different tissues
The bone that separates the root on a tooth

6. Nasal-Labial Groove
A faint line going from the ala of the nose to the corner of the mouth
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
Band of fibrous tissue which attaches muscle to bone
Origin of the tooth

7. Circumvallate Papillae
Initiation of the tooth begins
Assist in depressing the mandible and elevating the tongue
Drains the floor of the mouth
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10

8. Lingual Frenum
Maxillary third molar
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
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

9. Styloid Process
When the tissue becomes inflamed
Sharp projection on the under surface of the temporal bone
A dense tissue covered with mucous membrane that can withstand chewing
Enamel is thinner - pulp chamber is smaller -

10. Pulp horns
Full deep rich sound in nasal cavity
Growth from the oral epithelium that gives rise to the tooth buds
Pointed elongations of the pulp
Occlusal surface of the posterior tooth

11. Xygomatic bones
Forms the bulk of the tooth
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
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Cheek bones--the most breakable bone in the body

12. Rod Core
Allow flexibility during mastication - speech
Inner portion of the enamel rod
Dividing point of a multi-rooted tooth
Creates the wall of the dentinal tubule

13. Lamina Dura
A shallow v-shaped depression located below the bottom of the nose and above the lips
A line that represents the alveolus bone lining the socket
Portion covered with cementum
Primary and permanent

14. Which molar is the wisdom tooth
Of or pertaining to area surrounding naval cavity
Corners of the mouth
Supplies blood to the brain and the eyes
Maxillary third molar

15. Evanesce
Two cortical bone plates that come together between each tooth
To dissolve
Natural teeth in position
Full deep rich sound in nasal cavity

16. Pterygoid plexus of the veins
Origin of the tooth
Located on the inside of the body of the ramus
A junction or center of veins that directly or indirectly drain a vast area
A projection that extends off the back of the soft palate

17. Distal
Study of prenatal growth and the developing process of an individual
2 small raised folds of tissue where the lingual frenum attaches
Surface away from the midline
Platysma - trapezius - sternocleidomastoid

18. Concave
Maxillary third molar
Indented
Raised vertical folds of tissue on the lateral border of the tongue
Forming organ takes shape and resembles the shape of a bell

19. Buccal Mucosa
The inner surface of the cheeks
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Elevated are of enamel that forms the Mesial and distal borders
4th week

20. Mantle Dentin
Resists intrusive forces that try to push the tooth inwards
The first predentin that is formed and matures within the tube
A line that represents the alveolus bone lining the socket
Joined at the midline and are often referred to as the median Palatine suture

21. Labial
Largest facial bone with two sections joined at the median suture
Outside surface Which is towards the lips
Located behind the ramus of the mandible and branches into five arteries
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate

22. If Palate not fused
Teeth will not erupt in proper position
The layer of dentin that surrounds the pulp
Separates the developing oral cavities from the nasal cavities
Curve outward

23. Mesial
Surface towards the midline
A condition where the lower frenum attachment is very short/DDS/frenectomy
A bony plate covered with keratinized tissue located in the anterior portion of the palate
Pulverizing or chewing surface

24. Saliva
Small yellowish glands on the labial mucosa
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Cut - tear - and grind food
Clear fluid secreted by the salivary and mucous glands throughout the mouth

25. Torus
A junction or center of veins that directly or indirectly drain a vast area
Excess bone in the middle of the palate
Joined at the midline and are often referred to as the median Palatine suture
Tissue fluid surrounding the cell membrane of the odontoblast

26. Occlusion third
Inner portion of the enamel rod
Cheek bones--the most breakable bone in the body
Occlusal surface of the posterior tooth
Small grooves noted on some teeth

27. What are the 4 taste senses and where are they located?
Portion covered with cementum
Lift the hyoid bone and assist in opening the mouth
The largest of three openings located in the posterior region of the hard palate
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue

28. Alveolar Mucosa
1500 millimeters
Opening for the ear
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Appears to be loosely attached - covering the alveolar bone.

29. Tome's process
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
Responsible for laying down the enamel matrix into place
Indented
The mandibular first premolar

30. Function of Palatopharyngeal
Supportive fibers that anchor the tooth to the bone
Constricts the nasopharyngeal passage and elevates the larynx
Biting edge of the teeth
Natural teeth in position

31. Mucosa
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Middle line of the teeth
Lining covers inside of the oral cavity
Dividing point of a multi-rooted tooth

32. Morphology
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Study of the structure and form of the teeth
Largest facial bone with two sections joined at the median suture

33. Gland
An enclosed area that matures into dentin - cementum and pulp
Cluster of tissue that manufactures and secrets fluid
Cells develop into different tissues
Excess bone formations under the tongue on the alvellar bone

34. What are the three muscles of the neck?
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Surface towards the midline
The space between the unattached gingiva and the tooth
Platysma - trapezius - sternocleidomastoid

35. Incisive Papilla
Surface away from the midline
A raised area of tissue laying behind the maxillary central incisors on the hard palate
When the surface of the teeth becomes grooved
Three cusps/ trifurcated

36. Deep Facial Veins
Dividing point of a multi-rooted tooth
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Forms after the completion of the apical foramen
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth

37. Gingiva
Lift the hyoid bone and assist in opening the mouth
Composed of mucosa and surrounds the necks of the teeth
Forms the remaining 2/3 of the hard and soft palate uvula
2 small raised folds of tissue where the lingual frenum attaches

38. Cusp of Caribelli
Assist in the movement and functioning of the tongue
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Resists forces that try to pull the tooth outward
Wearing away of the incisal or occlusal surfaces of the tooth

39. Convex
To bulge of curve outward
Function to resist rotational forces and tilting
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Forms the bulk of the tooth

40. Lobes
Developmental segment of a tooth
Calcium salts are deposited into formed tooth
Intervating the anterior teeth and the labial gingiva
Forms after the completion of the apical foramen

41. Zygomatic nerve
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Set of arches found farther in the back of the throat
Healthy gingival tissue with an orange texture
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth

42. If a patient receives toxic agents - how long does it take for their sense of taste to return?
10 days
Extends from the medial corner of the eye to the nasal cavity
Allow flexibility during mastication - speech
Located on the inside of the body of the ramus

43. Lingual
Inside surface Which is towards the tongue - on anterior teeth
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
A period of both primary teeth and permeant teeth are in the dentition
Supplies blood to the face and oral cavity

44. Maxillary Nerve Branch
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Drains the Pterygoid plexus of the veins
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Found only in multi-rooted teeth and resists rotational forces

45. When does the maxillary second molar erupt?
12 years
The area on the crown of the tooth that is nearest the gingival
Elevates the posterior portion of the tongue and narrows the fauces
Intervating the anterior teeth and the labial gingiva

46. What teeth are removed if overcrowding occurs?
Looking at the border of the tongue
The inner surface of the lips
Bicuspids
Origin - fixed point - insertion - movable point

47. What is the maxillary cuspid known as?
Layers of tooth tissue become calcified
The cornerstone of the mouth
Forms the remaining 2/3 of the hard and soft palate uvula
Covering over the enamel that is left over from the epithelium ameloblasts

48. Morpho differentiation
The development of different forms
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
Assist in depressing the mandible and elevating the tongue
Interdental ligament

49. External Oblique Ridge
To bulge of curve outward
The largest of the salivary glands which lie just below and in front of the ear
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Follows the length of the body of the mandible past the last tooth and up to the ramus

50. Vermilion Zone
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface
The tip of the chin
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Portion of the lips that are red