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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. What are the 4 pairs of muscles of mastication!
Temporal muscles - masseter muscles - internal pterygoid muscles - external pterygoid muscles
Bi-cuspids
The mandibular first premolar
Follows the inside of the ramus and the body of the mandible

2. Central Incisor
Substances between cells
The bone that separates the root on a tooth
Middle two teeth in the mouth
Cut - tear - and grind food

3. Anomalies
Teeth will not erupt in proper position
Supplies blood to the brain and the eyes
Extreme variations from the norm
Triferacated

4. Fissure
Located behind the ramus of the mandible and branches into five arteries
Origin of the tooth
Lining covers inside of the oral cavity
Resulting from an imperfect union where the lobes come together

5. Tendon
Excess dryness of the mouth
Band of fibrous tissue which attaches muscle to bone
The ridges that run horizontally across the hard palate behind the incisive papilla
Folds of tissue that extend horizontally from the uvula to the base of the tongue

6. Lesser Palatine Foramen
The deepest point of the vestibule
Primary and permanent
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone

7. Gums
A raised area of tissue laying behind the maxillary central incisors on the hard palate
Tissue covering the alveolar processes
Small bony projections surrounding the lingual foramen
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

8. What is the longest tooth in the mandibular arch?
A bony projection that separates each socket
Pulverizing or chewing surface
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
The mandibular first premolar

9. Ligament
6 years old
Band of fibrous tissue which attaches bone to bone
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Three bulges on the incisal edge

10. Tubercle of the Lip
A small projection in the middle of the upper lip
Portion of the root seen in the oral cavity
The slightly raised line extending down the middle of the hard palate
Largest of the branches of the external carotid artery; supplies facial structure

11. Distal
Surface away from the midline
A triangular area located behind the last molar
Smaller - enamel thicker - pulp chamber is larger is larger - bifurcation wider
Rounded depression on a tooth

12. Gingiva
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Lower arch of the teeth
A dense tissue covered with mucous membrane that can withstand chewing
The groove below the lower lips that separates the lips from the chin

13. Marginal Ridges
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip
Forming organ takes shape and resembles the shape of a bell
Elevated are of enamel that forms the Mesial and distal borders
A small projection in the middle of the upper lip

14. Alveolus
Oval structures that are located on the dorsal surface of the tongue
Resists forces that try to pull the tooth outward
Elevated are of enamel that forms the Mesial and distal borders
Bone that surrounds the root of the tooth

15. Duct
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Canal or passage for fluid
Portion of the root seen in the oral cavity
What divides the tongue in half and runs from the base to the tip of the tongue

16. Cuspid
Third tooth from the midline
Outside surface Which is towards the lips
Raised vertical folds of tissue on the lateral border of the tongue
The teeth located at the back of the mouth

17. Contact Area
Enamel is thinner - pulp chamber is smaller -
Folds of tissue to the the lingual veins
Where the proximal sides of two teeth come together and touch
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx

18. Primary palate
The moveable attachment of the muscle
Separates the developing oral cavities from the nasal cavities
Ligaments and muscles of mastication
Slight ridges on the cervical third of certain teeth that extend mesiodistally

19. External Carotid Artery
Peg shaped crown with a smooth surface
Separation of the upper lip ( 1 of 1000 live births)
The largest of three openings located in the posterior region of the hard palate
Supplies blood to the face and oral cavity

20. TMJ bones are bathed In what solution?
Synovial fluid
Small yellowish glands on the labial mucosa
The largest of the salivary glands which lie just below and in front of the ear
Portion of the root seen in the oral cavity

21. Cleft Uvula
Located behind the ramus of the mandible and branches into five arteries
20
Mildest form of cleft palate
Drains the floor of the mouth

22. Mucosa
Forms into the inner lining of the oral cavitiy and enamel of the teeth
Lining covers inside of the oral cavity
The fixed attachment of a muscle
Depresses the tongue

23. Salivary Glands
Assist in depressing the mandible and elevating the tongue
(free gingiva) surrounds the teeth
A flap of tissue on the on the buccal mucosa
Secrete saliva to assist in process of digestion

24. What are the eight landmarks of the face?
A condition where the lower frenum attachment is very short/DDS/frenectomy
Allow flexibility during mastication - speech
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves

25. Facial Artery
Upper arch of the teeth
Three cusps/ trifurcated
Molaris meaning millstone
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

26. What teeth do the deciduous (baby) tooth not include?
No bicuspids/ no 3rd molars
Supplies blood to the roots and periodontal ligaments of the molars and premolars
The connective tissue of the marginal gingiva
Inside of the maxillary teeth

27. What are the 4 cranial nerves that ennervate the face and oral cavity
2 small raised folds of tissue where the lingual frenum attaches
Follows the inside of the ramus and the body of the mandible
Mucosa that covers the alveolar bone
Trigeminal - facial - glossopharyngeal - hypoglossal

28. Middle Superior Alveolar Nerve
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Drains the maxiallary artery and superficial temporal arteries
Triangular space in the gingival direction when two adjacent teeth are in contact
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct

29. Buccal
Depresses the tongue
Outside surface Which is towards the cheek - on posterior teeth
Respiratory system - digestive system and glandular organs
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle

30. What are the 4 muscles of the floor of the mouth?
Digstric - Mylohyoid - stylohyoid - geniohyoid
Growth from the oral epithelium that gives rise to the tooth buds
Surface away from the midline
Functions the same as the alveolar cfg; originate in alveolar bone

31. Quadrants
Quarters of the teeth
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Study of the structure and form of the teeth

32. Lobes
Bifurcated/ 5 cusps
Retracts or depresses the tongue
The moveable attachment of the muscle
Developmental segment of a tooth

33. Where is the palate located?
H20 - mucin - organic salts and digestive enzymes
Surface towards the midline
Inside of the maxillary teeth
Small grooves noted on some teeth

34. Mental Artery
A line of tissue that extends from the tongue to the floor of the mouth
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
A dense tissue covered with mucous membrane that can withstand chewing
The portion of the tooth that meets the gingiva

35. Filiform Papillae
Portion of the lips that are red
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue
Inside surface Which is towards the tongue - on anterior teeth

36. Cusps
Pointed or rounded mounds on the crown of the tooth
Assist in depressing the mandible and elevating the tongue
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Synovial fluid

37. Lamina Propria
The connective tissue of the marginal gingiva
Secrete saliva to assist in process of digestion
Synovial fluid
The mandibular first premolar

38. Retromolar Area
Drains the floor of the mouth
A triangular area located behind the last molar
When the dentin is exposed
Moves the head backward and laterally

39. Inferior Alveolar Artery
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries
Small linear depression
Composed of mucosa and surrounds the necks of the teeth
Set of arches found farther in the back of the throat

40. Papilla
Convex area on the lingual surface near gingiva
Small raised projections where taste buds are located
A small projection in the middle of the upper lip
Arteries supplying blood to most of the head and the neck

41. Sphenoid
Mandibular central incisors
Origin - fixed point - insertion - movable point
A bat shaped bone which forms the anterior portion of the skull
Raised lines of mucosal tissue found below the tongue - and below the top/ bottom of middle lip

42. Peritubular Dentin
Creates the wall of the dentinal tubule
A junction or center of veins that directly or indirectly drain a vast area
Forms after the completion of the apical foramen
Rounded depression on a tooth

43. Attached Gingiva
Extends from the mucogingival junction to the gingival groove
Portion of the lips that are red
Molaris meaning millstone
Cells develop into different tissues

44. Concave
Drains the facial structures beginning near the eye and descending toward the mandible
Supplies blood to the roots and periodontal ligaments of the molars and premolars
The crown of the tooth that is nearest the incisal edge near the anterior tooth
Indented

45. Alveolar Crest Fiber Group
Function to resist rotational forces and tilting
Ligaments and muscles of mastication
Linear elevation of the tooth
Forms after the completion of the apical foramen

46. Epithelial Attachment
Radiates from the developmental groove
Buccal - lingual - and inferior alveolar
The gingiva in the floor of the gingival sulcus that attaches to the enamel
Function to resist rotational forces and tilting

47. Maxillary Arch
Functions the same as the alveolar cfg; originate in alveolar bone
Mildest form of cleft palate
Where the proximal sides of two teeth come together and touch
Upper arch of the teeth

48. Develop Mental Groove
A flap of tissue on the on the buccal mucosa
Formed by the uniting of lobes during development of crown
Drains the facial structures beginning near the eye and descending toward the mandible
Divides the crown and the root

49. Pulp Stones
Drains the Pterygoid plexus of the veins
Creates the wall of the dentinal tubule
Linear elevation of the tooth
Calcified masses of dentin

50. Buckle groove
Fleshy elevation under the tongue
Occurs in unusual ways and distorted crowns may appear
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries