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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.
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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. Facial Vein
Portion of the lips that are red
When cells rapidly increase in number
Drains the facial structures beginning near the eye and descending toward the mandible
Drains the maxiallary artery and superficial temporal arteries

2. Posterior Teeth
Hinge motion and gliding movement
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
(free gingiva) surrounds the teeth
The teeth located at the back of the mouth

3. Landmarks
Mucosa that covers the alveolar bone
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Molaris meaning millstone
Scroll like bones outside the nasal cavaties

4. Bud stage
Initiation of the tooth begins
Pulls the hyoid bone and the tongue anteriorly
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Radiates from the developmental groove

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

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6. Perikymata
Small grooves noted on some teeth
Smaller branch that ennervates the soft palate uvula and tonsils
Cells that form cementum
Forms into dentin - cementum and pulp of the teeth

7. Osteoclasts
The mandibular first premolar
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Separation of the upper lip ( 1 of 1000 live births)
4/5 cusps/ 3 roots

8. Common Carotid
Arteries supplying blood to most of the head and the neck
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Surface towards the midline
Initiation of the tooth begins

9. Pterygoid Artery
The first predentin that is formed and matures within the tube
Small yellowish glands on the labial mucosa
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch

10. Genial Tubercles
Small bony projections surrounding the lingual foramen
An enclosed area that matures into dentin - cementum and pulp
Cells From which connective tissue evolve
The tip of the chin

11. Nasal-Labial Groove
Wearing away of the incisal or occlusal surfaces of the tooth
Surface towards the midline
A faint line going from the ala of the nose to the corner of the mouth
A horseshoe shaped groove that follow the curve of the dental arch

12. How many cusps/ roots do the maxillary first molars have?
The disc becomes displaced
4/5 cusps/ 3 roots
Supplies blood to the roots and periodontal ligaments of the interior teeth
Place where the groove comes together or fissures cross

13. Inferior Alveolar Artery
Initiation of the tooth begins
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Molaris meaning millstone

14. Oblique Ridge
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Study of the structure and form of the teeth
Cells develop into different tissues
Three bulges on the incisal edge

15. Quadrants
Quarters of the teeth
Small curved lines that run parellel to the CEJ
A projection that extends off the back of the soft palate
Portion of the lips that are red

16. Philtrum
Vertical groove on the midline of the upper lip
Three bulges on the incisal edge
Pointed elongations of the pulp
The fixed attachment of a muscle

17. Alveolar Mucosa
Appears to be loosely attached - covering the alveolar bone.
A bat shaped bone which forms the anterior portion of the skull
A raised area of tissue laying behind the maxillary central incisors on the hard palate
A period of both primary teeth and permeant teeth are in the dentition

18. Angle of the Mandible
Narrow long enamel tuft
Where the ramus meets the body of the mandible on the outside border
Elevates the posterior portion of the tongue and narrows the fauces
Supportive fibers that anchor the tooth to the bone

19. Calcification
Drains the Pterygoid plexus of the veins
Arteries supplying blood to most of the head and the neck
Layers of tooth tissue become calcified
Primary embryonic mesoderm layer that develops during the morpho differentiation period

20. Ligament
Drains the Pterygoid plexus of the veins
Portion of the lips that are red
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
Band of fibrous tissue which attaches bone to bone

21. Mastication
Mandibular central incisors
Causes a thickening of the cementum around the apex
Chewing and swallowing food
1500 millimeters

22. Incisive Nerve branch
Responsible for laying down the enamel matrix into place
Intervating the anterior teeth and the labial gingiva
Place where the groove comes together or fissures cross
Small yellowish glands on the labial mucosa

23. Retromolar Area
A triangular area located behind the last molar
Bi-cuspids
To lubricate the oral cavity and to moisten food
Study of prenatal growth and the developing process of an individual

24. Function of mylohyoid
Assist in depressing the mandible and elevating the tongue
Greater - lesser - naso palatine nerves
Opening for the ear
The connective tissue of the marginal gingiva

25. Torus Mandibularis
Cells that form cementum
Excess bone formations under the tongue on the alvellar bone
The mandibular first premolar
Raised vertical folds of tissue on the lateral border of the tongue

26. External Jugular Vein
The outer edge of the nostril
Layers of tooth tissue become calcified
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Drains the superficial veins of the face and neck into the subclavian vein

27. Filiform Papillae
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
4/5 cusps/ 3 roots
The mandibular first premolar
The development of different cells

28. Parotid glands
Papillae that give the tongue the strawberry effect
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
The largest of the salivary glands which lie just below and in front of the ear
Quarters of the teeth

29. Median Sulcus
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
What divides the tongue in half and runs from the base to the tip of the tongue
Week 11
Conception thru the first two weeks

30. Philtrum
Curve outward
A shallow v-shaped depression located below the bottom of the nose and above the lips
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
Set of arches found farther in the back of the throat

31. Lamina Dura
Elevated are of enamel that forms the Mesial and distal borders
Appears to be loosely attached - covering the alveolar bone.
Shaping the tongue during speech - mastication and swallowing
A line that represents the alveolus bone lining the socket

32. Maxillary vein
Sharp projection on the under surface of the temporal bone
Drains the Pterygoid plexus of the veins
When the surface of the teeth becomes grooved
A triangular area located behind the last molar

33. Concave
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
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
Cells From which connective tissue evolve
Indented

34. Develop Mental Groove
Dentin found between the tubules
Natural teeth in position
Formed by the uniting of lobes during development of crown
A raised area of tissue laying behind the maxillary central incisors on the hard palate

35. Lamina Propria
The connective tissue of the marginal gingiva
Separates the developing oral cavities from the nasal cavities
Portion of the root seen in the oral cavity
Intervating the anterior teeth and the labial gingiva

36. Maxillary Arch
Where the proximal sides of two teeth come together and touch
Upper arch of the teeth
The connective tissue of the marginal gingiva
What divides the tongue in half and runs from the base to the tip of the tongue

37. Articular Disc
Resist rotational forces and hold teeth in inter-proximal contact
12 years
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
A rounded area beyond the last posterior maxillary tooth

38. Soft Palate
4 cusps/ bifurcated
Scroll like bones outside the nasal cavaties
Covers muscle tissue in the posterior portion of the palate
Cells that form cementum

39. Resonance
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
To dissolve
Week 11
Full deep rich sound in nasal cavity

40. Mucogingival Junction
Surface away from the midline
A line of demarcation between the attached gingiva and alveolar mucosa
Drains the facial structures beginning near the eye and descending toward the mandible
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth

41. Lingual
Three cusps/ trifurcated
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Located in a depressed area between the pillars
Inside surface Which is towards the tongue - on anterior teeth

42. Dentogingival Fiber Groups
Act to maintain the gingival integrity of the marginal gingiva
Ligaments and muscles of mastication
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue

43. Cementoblast
Oval structures that are located on the dorsal surface of the tongue
An overgrowth of the gingival tissue
Cells that form cementum
Compact bone plate of the facial and lingual surfaces

44. How many teeth are in the permanent set of teeth?
Occurs in unusual ways and distorted crowns may appear
Resists forces that try to pull the tooth outward
32
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone

45. Anomalies
Extreme variations from the norm
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
6 months/3years
Upper arch of the teeth

46. Lateral Incisor
A dense tissue covered with mucous membrane that can withstand chewing
The development of different tissues
Demonstrates a disturbance in the body metabolism
Second teeth next to central incisors

47. Uvula
Resists forces that try to pull the tooth outward
To dissolve
The study of the microscopic structure and functions of tissues
A projection that extends off the back of the soft palate

48. Internal Oblique Ridge
Platysma - trapezius - sternocleidomastoid
Small head - low nasal bridge - thin upper lip - small mandible
Set of arches found farther in the back of the throat
Follows the inside of the ramus and the body of the mandible

49. Torus
Study of the structure and form of the teeth
The inner surface of the lips
When the tissue becomes inflamed
Excess bone in the middle of the palate

50. Intercellular Substances
Healthy gingival tissue with an orange texture
Substances between cells
Calcium salts are deposited into formed tooth
Mastication - aids in speech - influence facial structure - chewing surfaces