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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. Angle of the Mandible
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
Where the ramus meets the body of the mandible on the outside border
Opening for the ear
Surface away from the midline

2. Ligament
Band of fibrous tissue which attaches bone to bone
Bluish veins that run the length of the tongue
Dentin found between the tubules
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

3. Incisive Papilla
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Two
A junction or center of veins that directly or indirectly drain a vast area
A raised area of tissue laying behind the maxillary central incisors on the hard palate

4. Histo Differentation
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Week 11
Occlusal surface of the posterior tooth
The development of different tissues

5. What is Ankyloglossia and who can treat it / What is the treatment called?
Formed by the fibroblast cells and secures the tooth in the socket
Demonstrates a disturbance in the body metabolism
Assist in the movement and functioning of the tongue
A condition where the lower frenum attachment is very short/DDS/frenectomy

6. Interdental Septum
4/5 cusps/ 3 roots
H20 - mucin - organic salts and digestive enzymes
A bony projection that separates each socket
Tooth emerges from gum tissue and becomes visible

7. Mantle Dentin
The first predentin that is formed and matures within the tube
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Primitive mouth
Secrete saliva to assist in process of digestion

8. How many cusps/ roots do the 2/3rd maxillary molars have?
Canal or passage for fluid
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Three cusps/ trifurcated
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements

9. Evanesce
H20 - mucin - organic salts and digestive enzymes
1500 millimeters
Clear fluid secreted by the salivary and mucous glands throughout the mouth
To dissolve

10. Function of Trapezius
Moves the head backward and laterally
Small head - low nasal bridge - thin upper lip - small mandible
Where the ectoderm layer matures into the enamel
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10

11. Fissure
Resulting from an imperfect union where the lobes come together
The bone that separates the root on a tooth
2 small raised folds of tissue where the lingual frenum attaches
Primary and permanent

12. Anterior Tonsillar Pillar
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Calcium salts are deposited into formed tooth
A faint line going from the ala of the nose to the corner of the mouth
A line of demarcation between the attached gingiva and alveolar mucosa

13. Internal Carotid Artery
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
A horseshoe shaped groove that follow the curve of the dental arch
Supplies blood to the brain and the eyes
The groove below the lower lips that separates the lips from the chin

14. Retro Mandibular Vein
An overgrowth of the gingival tissue
The moveable attachment of the muscle
Buccal - lingual - and inferior alveolar
Drains the maxiallary artery and superficial temporal arteries

15. Groove
Small raised projections where taste buds are located
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Small linear depression
Follows the length of the body of the mandible past the last tooth and up to the ramus

16. How many teeth are in the permanent set of teeth?
Quarters of the teeth
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Largest facial bone with two sections joined at the median suture
32

17. What teeth are removed if overcrowding occurs?
Act to maintain the gingival integrity of the marginal gingiva
Bicuspids
Mucosa that covers the alveolar bone
The layer of dentin that surrounds the pulp

18. Histo Differentiation
Band of fibrous tissue which attaches muscle to bone
Occurs in unusual ways and distorted crowns may appear
Quarters of the teeth
Cells develop into different tissues

19. Dental Lamina
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Growth from the oral epithelium that gives rise to the tooth buds
Opening for the ear
The space between the unattached gingiva and the tooth

20. Greater Palatine Foramen
The largest of three openings located in the posterior region of the hard palate
The development of different cells
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Canal or passage for fluid

21. Nasolacrimal groove
Shaping the tongue during speech - mastication and swallowing
A line of demarcation between the attached gingiva and alveolar mucosa
The development of different forms
Extends from the medial corner of the eye to the nasal cavity

22. Fungiform Papillae
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Extends from the medial corner of the eye to the nasal cavity
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Papillae that give the tongue the strawberry effect

23. Lingual Vein
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
The inner surface of the lips
Intervating the anterior teeth and the labial gingiva
Drains the floor of the mouth

24. Sharpey's Fibers
Set of arches found farther in the back of the throat
Acts as anchors between the alveolar bone and the tooth
Ligaments and muscles of mastication
Extreme variations from the norm

25. How many cusps/ roots do the 2/3rd mandibular molars have?
The tip of the chin
10 days
Indented
4 cusps/ bifurcated

26. Alveolus
Lower arch of the teeth
Bone that surrounds the root of the tooth
Quarters of the teeth
4 cusps/ bifurcated

27. Buccal
Place where the groove comes together or fissures cross
Digstric - Mylohyoid - stylohyoid - geniohyoid
Outside surface Which is towards the cheek - on posterior teeth
The cornerstone of the mouth

28. Ridge
Vertical groove on the midline of the upper lip
Platysma - trapezius - sternocleidomastoid
Linear elevation of the tooth
Biting edge of the teeth

29. Resonance
Full deep rich sound in nasal cavity
Duct located on the parotid papilla
To lubricate the oral cavity and to moisten food
Appears to be loosely attached - covering the alveolar bone.

30. When do the primary teeth begin erupting and are fully erupted?
Surface away from the midline
6 months/3years
The first predentin that is formed and matures within the tube
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

31. Mucosa
Papillae that give the tongue the strawberry effect
Lining covers inside of the oral cavity
Two weeks thru 8th week
Supplies blood to the roots and periodontal ligaments of the molars and premolars

32. What teeth do the deciduous (baby) tooth not include?
Middle two teeth in the mouth
Fifth cusp located on the mesial surface lingual surface of maxillary first molars
Conception thru the first two weeks
No bicuspids/ no 3rd molars

33. Circular Ligament Fiber Groups
Circle and tighten the gingival margin around the neck of the tooth
Oval depression of temporal bone in condyloid process
Folds of tissue to the the lingual veins
When cells rapidly increase in number

34. What is saliva made of?
It intervates the buccal mucosa and buccal gingiva as well as the buccal of the mandibular molars
Demonstrates a disturbance in the body metabolism
H20 - mucin - organic salts and digestive enzymes
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator

35. What are the 4 taste senses and where are they located?
Clear fluid secreted by the salivary and mucous glands throughout the mouth
Permeante teeth replace the primary teeth
Narrow long enamel tuft
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue

36. Fibroblasts
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Cells From which connective tissue evolve
Constricts the nasopharyngeal passage and elevates the larynx
Week 12

37. Gingival Groove
Intervating the anterior teeth and the labial gingiva
Study of prenatal growth and the developing process of an individual
The line of demarcation between the attached gingiva and the marginal gingiva
Small dark brushes

38. Osteoclasts
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Resulting from an imperfect union where the lobes come together
Begin at the caruncles on either side of the frenum and run backward to the base of the tongue
6 months/3years

39. Landmarks
Separation of the upper lip ( 1 of 1000 live births)
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
Set of arches found farther in the back of the throat

40. Mastication
Divides the crown and the root
Mucosa that covers the alveolar bone
Chewing and swallowing food
What divides the tongue in half and runs from the base to the tip of the tongue

41. Sublingual Glands
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
A small projection in the middle of the upper lip
Short tubules that seem to crossover to the enamel
Bone that surrounds the root of the tooth

42. Free Gingiva
The study of the microscopic structure and functions of tissues
A raised area of tissue laying behind the maxillary central incisors on the hard palate
The fixed attachment of a muscle
The portion of the tooth that meets the gingiva

43. Palatine Raphe
Chewing and swallowing food
Second teeth next to central incisors
Portion of the root seen in the oral cavity
The slightly raised line extending down the middle of the hard palate

44. Interdental Ligament Group
Maxillary third molar
Resist rotational forces and hold teeth in inter-proximal contact
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
When the dentin is exposed

45. Xygote
When cells rapidly increase in number
Vertical groove on the midline of the upper lip
Two
A horseshoe shaped groove that follow the curve of the dental arch

46. What are the four main functions of deciduous teeth?
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Mastication - aids in speech - influence facial structure - chewing surfaces
Disk that acts like a cushion between the temporal bone and the condyloid process
Moves the head backward and laterally

47. What is the most common problem with TMJ
Primary embryonic mesoderm layer that develops during the morpho differentiation period
6 years old
When the dentin is exposed
The disc becomes displaced

48. Xygomatic bones
Allow flexibility during mastication - speech
Pulls the hyoid bone and the tongue anteriorly
Cheek bones--the most breakable bone in the body
When the surface of the teeth becomes grooved

49. Posterior Tonsillar Pillar
The study of the microscopic structure and functions of tissues
Two cortical bone plates that come together between each tooth
Ligaments and muscles of mastication
Set of arches found farther in the back of the throat

50. Mental Artery
Full deep rich sound in nasal cavity
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
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
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip