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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. Dentogingival Fiber Groups
Act to maintain the gingival integrity of the marginal gingiva
Elevates the posterior portion of the tongue and narrows the fauces
Small raised projections where taste buds are located
Synovial fluid

2. Function of Styloglossus
Retracts the tongue and raises the tip of the tongue
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
The cornerstone of the mouth
The deepest point of the vestibule

3. Lobes
Tooth emerges from gum tissue and becomes visible
Forms after the completion of the apical foramen
To bulge of curve outward
Developmental segment of a tooth

4. Cusps
A bony projection that separates each socket
Elevated are of enamel that forms the Mesial and distal borders
6 years old
Pointed or rounded mounds on the crown of the tooth

5. What is the smallest tooth in dentition?
Formed by the uniting of lobes during development of crown
Week 12
Small dark brushes
Mandibular central incisors

6. How many teeth are in the Primary teeth?
Canal or passage for fluid
20
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
Convex area on the lingual surface near gingiva

7. What teeth are removed if overcrowding occurs?
Largest division of the trigeminal nerve
Elevates the posterior portion of the tongue and narrows the fauces
Calcified masses of dentin
Bicuspids

8. Deep Facial Veins
Assists in elevating the chin
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Divides the crown and the root
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth

9. Internal Carotid Artery
Pointed or rounded mounds on the crown of the tooth
Supplies blood to the brain and the eyes
Small dark brushes
A triangular area located behind the last molar

10. Mandibular Artery
Located behind the ramus of the mandible and branches into five arteries
Pointed elongations of the pulp
20
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth

11. Dental Sac
Vertical groove on the midline of the upper lip
Origin of the tooth
An enclosed area that matures into dentin - cementum and pulp
Lift the hyoid bone and assist in opening the mouth

12. Agenesis
The internal surface at the center of the mandible
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Occurs in unusual ways and distorted crowns may appear
Portion of the lips that are red

13. What are the 4 muscles of the floor of the mouth?
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Retracts or depresses the tongue
Digstric - Mylohyoid - stylohyoid - geniohyoid

14. Greater Palatine Foramen
Circle and tighten the gingival margin around the neck of the tooth
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 largest of three openings located in the posterior region of the hard palate
Wings of the sphenoid bone

15. What are the characteristics of deciduous teeth?
2 small raised folds of tissue where the lingual frenum attaches
Layers of tooth tissue become calcified
Tissue fluid surrounding the cell membrane of the odontoblast
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider

16. Primary palate
Three cusps/ trifurcated
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Separates the developing oral cavities from the nasal cavities

17. Secondary Dentin
Excess dryness of the mouth
4/5 cusps/ 3 roots
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Forms after the completion of the apical foramen

18. Clinical root
Resists intrusive forces that try to push the tooth inwards
Enamel forming cells
Portion of the root seen in the oral cavity
Located behind the ramus of the mandible and branches into five arteries

19. Horizontal Fiber Group
Maxillary first molar
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Functions the same as the alveolar cfg; originate in alveolar bone
Outside surface Which is towards the cheek - on posterior teeth

20. Tendon
A bony projection that separates each socket
Secrete saliva to assist in process of digestion
Band of fibrous tissue which attaches muscle to bone
Place where the groove comes together or fissures cross

21. Purpose of premolars
Used to pulverize food
Located in a depressed area between the pillars
An overgrowth of the gingival tissue
The development of different cells

22. If a patient receives toxic agents - how long does it take for their sense of taste to return?
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
10 days
Drains the superficial veins of the face and neck into the subclavian vein
Used to pulverize food

23. Epithelial Attachment
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Excess bone in the middle of the palate
Function to resist rotational forces and tilting
Secrete saliva to assist in process of digestion

24. What is the most common problem with TMJ
Follows the length of the body of the mandible past the last tooth and up to the ramus
The disc becomes displaced
Oval structures that are located on the dorsal surface of the tongue
Growth from the oral epithelium that gives rise to the tooth buds

25. Succedaneous teeth
The deepest point of the vestibule
Permeante teeth replace the primary teeth
Dividing point of a multi-rooted tooth
The teeth located at the back of the mouth

26. Occlusal
Pulverizing or chewing surface
Disk that acts like a cushion between the temporal bone and the condyloid process
Portion of the lips that are red
Constricts the nasopharyngeal passage and elevates the larynx

27. Denticion
Natural teeth in position
Excess dryness of the mouth
Assist in the movement and functioning of the tongue
Covering over the enamel that is left over from the epithelium ameloblasts

28. Resonance
Full deep rich sound in nasal cavity
Shaping the tongue during speech - mastication and swallowing
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
To dissolve

29. Imbrication lines
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Developmental segment of a tooth
Demonstrates a disturbance in the body metabolism
6 years old

30. Alveolus
Tissue covering the alveolar processes
Bone that surrounds the root of the tooth
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Cut - tear - and grind food

31. Incisal third
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Assists in elevating the chin
Mucosa that covers the alveolar bone
Dividing point of a multi-rooted tooth

32. Supplemental Groove
Digstric - Mylohyoid - stylohyoid - geniohyoid
Extreme variations from the norm
Chewing and swallowing food
Radiates from the developmental groove

33. Interdental Gingiva
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Orbicularis oris - buccinator - mentalis - zygomatic major
Developmental segment of a tooth
An extension of an unattached gingiva and the tooth

34. When do the tooth buds appear?
Week 11
Act to maintain the gingival integrity of the marginal gingiva
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Supplies blood to the roots and periodontal ligaments of the molars and premolars

35. Mental Protuberance
Forming organ takes shape and resembles the shape of a bell
The tip of the chin
Sharp projection on the under surface of the temporal bone
Supplies blood to the brain and the eyes

36. What is saliva made of?
Pointed or rounded mounds on the crown of the tooth
A line that represents the alveolus bone lining the socket
H20 - mucin - organic salts and digestive enzymes
A bony plate covered with keratinized tissue located in the anterior portion of the palate

37. Function of Stylohyoid
Extreme variations from the norm
Surface towards the midline
Corners of the mouth
Draws the hyoid bone superiorly and posteriorly and stabilizes it

38. Saliva
The ridges that run horizontally across the hard palate behind the incisive papilla
Clear fluid secreted by the salivary and mucous glands throughout the mouth
The inner surface of the cheeks
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors

39. Ala of the Nose
Extreme variations from the norm
The outer edge of the nostril
The largest of three openings located in the posterior region of the hard palate
An enclosed area that matures into dentin - cementum and pulp

40. Function of Trapezius
Moves the head backward and laterally
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Found near the cementoenamel junction
The connective tissue of the marginal gingiva

41. Lacrimal Bones
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
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
Shed from the oral cavity
Supplies blood to the face and oral cavity

42. Function of Platysma
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Depresses the tongue
Draws down the mandible and corners of the mouth
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface

43. What are the 3 branches of the pterygopalatine nerve branch?
Enamel forming cells
6 months/3years
Calcium salts are deposited into formed tooth
Greater - lesser - naso palatine nerves

44. Stippled
Shaping the tongue during speech - mastication and swallowing
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Healthy gingival tissue with an orange texture
Covers muscle tissue in the posterior portion of the palate

45. Alveolar Mucosa
A flap of tissue on the on the buccal mucosa
Teeth after cuspids
Appears to be loosely attached - covering the alveolar bone.
The corners of the mouth where the top and bottom lip meet

46. Labial Mucosa
Retracts or depresses the tongue
Oval structures that are located on the dorsal surface of the tongue
The inner surface of the lips
Follows the length of the body of the mandible past the last tooth and up to the ramus

47. Gingiva
Primitive mouth
A faint line going from the ala of the nose to the corner of the mouth
A dense tissue covered with mucous membrane that can withstand chewing
An overgrowth of the gingival tissue

48. Histo Differentation
The development of different tissues
Study of prenatal growth and the developing process of an individual
Supplies blood to the brain and the eyes
A period of both primary teeth and permeant teeth are in the dentition

49. What are the 4 taste senses and where are they located?
Small raised projections where taste buds are located
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
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Conception thru the first two weeks

50. Quadrants
Quarters of the teeth
Respiratory system - digestive system and glandular organs
Orbicularis oris - buccinator - mentalis - zygomatic major
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle