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Dental Assisting: Head And Neck Anatomy

Subjects : health-sciences, dentistry

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
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. Lingual Frenum
Supplies blood to the temporal muscle - masseter muscle - pterygoid muscle and buccanator
A shallow v-shaped depression located below the bottom of the nose and above the lips
Lower arch of the teeth
A line of tissue that extends from the tongue to the floor of the mouth

2. Occlusal
Duct located on the parotid papilla
Located on the inside of the body of the ramus
2 small raised folds of tissue where the lingual frenum attaches
Pulverizing or chewing surface

3. Imbracation Lines
Primary embryonic mesoderm layer that develops during the morpho differentiation period
Calcium salts are deposited into formed tooth
The layer of dentin that surrounds the pulp
Small curved lines that run parellel to the CEJ

4. Denticion
The teeth located at the back of the mouth
Natural teeth in position
(free gingiva) surrounds the teeth
Respiratory system - digestive system and glandular organs

5. Marginal GIngiva
Pulls the hyoid bone and the tongue anteriorly
Responsible for laying down the enamel matrix into place
Located on the inside of the body of the ramus
(free gingiva) surrounds the teeth

6. What are the three muscles of the neck?
9 weeks thru birth
A junction or center of veins that directly or indirectly drain a vast area
The fixed attachment of a muscle
Platysma - trapezius - sternocleidomastoid

7. Deep Facial Veins
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
Hinge motion and gliding movement
Middle line of the teeth
Primary embryonic mesoderm layer that develops during the morpho differentiation period

8. Vermilion Border
Two weeks thru 8th week
The area on the crown of the tooth that is nearest the gingival
Portion of the lips where the skin meets the vermilion zone
Molars

9. Cuspid
Third tooth from the midline
Rounded depression on a tooth
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
A concave area where two bones of the mandible are fused in the center of the mandible on the external surface

10. Odontogenesis
Origin of the tooth
Tissue covering the alveolar processes
The layer of dentin that surrounds the pulp
Inner portion of the enamel rod

11. What is another name for premolars?
Extreme variations from the norm
Small raised projections where taste buds are located
Located behind the ramus of the mandible and branches into five arteries
Bi-cuspids

12. Posterior Superior Alveolar Nerve
A condition where the lower frenum attachment is very short/DDS/frenectomy
Supplies the gingival - maxillary sinus - cheeks - and maxillary molars with the exception of the mesial buccal root of the first molar
Retracts the tongue and raises the tip of the tongue
Dividing point of a multi-rooted tooth

13. Foliate Papillae
Raised vertical folds of tissue on the lateral border of the tongue
Linear elevation of the tooth
A bony projection that separates each socket
Biting edge of the teeth

14. Function of Palatoglossus
Study of prenatal growth and the developing process of an individual
Portion covered with cementum
The internal surface at the center of the mandible
Elevates the posterior portion of the tongue and narrows the fauces

15. Cervical line
Union of two triangular ridges that produce a single ridge of elevation that cross the occlusal surface of posterior teeth
Wings of the sphenoid bone
Two
Divides the crown and the root

16. How much saliva do the salivary glands produce in 24 hours?
2 to 3 pints
The first predentin that is formed and matures within the tube
Enamel forming cells
Portion of the lips where the skin meets the vermilion zone

17. Nasal-Labial Groove
A faint line going from the ala of the nose to the corner of the mouth
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
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface 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

18. Saliva
Supplies the lateral wall of the maxillary sinus - gingiva - mesial buccal root of the first molar - and the roots of the bicuspids
Clear fluid secreted by the salivary and mucous glands throughout the mouth
The cornerstone of the mouth
Enamel is thinner - pulp chamber is smaller -

19. Incisive Papilla
Calcium salts are deposited into formed tooth
A raised area of tissue laying behind the maxillary central incisors on the hard palate
A rounded area beyond the last posterior maxillary tooth
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10

20. Cleft Lip
Duct located on the parotid papilla
Separation of the upper lip ( 1 of 1000 live births)
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)
Pulls the hyoid bone and the tongue anteriorly

21. Interdental Gingiva
An extension of an unattached gingiva and the tooth
Pointed elongations of the pulp
To lubricate the oral cavity and to moisten food
Demonstrates a disturbance in the body metabolism

22. Linea Alba
Circle and tighten the gingival margin around the neck of the tooth
(free gingiva) surrounds the teeth
Covering over the enamel that is left over from the epithelium ameloblasts
A raised white line that runs parallel to where the teeth meet on the buccal mucosa

23. Morphology
Vestibule - vestibule fornix - labial mucosa - buccal mucosa - parotid papilla - Stenson's duct - linea alba - Fordyce's spots - alveolar mucosa - gingiva - labial frenum - buccal frenum
Small linear depression
Study of the structure and form of the teeth
Tissue covering the alveolar processes

24. How many teeth are in the Primary teeth?
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
An overgrowth of the gingival tissue
20
Extreme variations from the norm

25. Alveolar Crest
Two cortical bone plates that come together between each tooth
The moveable attachment of the muscle
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Genioglossus - hyoglossus - styloglossus - palatoglossus

26. Gestational period
9 months (5 months ultrasound to tell sex)
Peg shaped crown with a smooth surface
Radiates from the developmental groove
Respiratory system - digestive system and glandular organs

27. Mandibular Foramen
Chewing and swallowing food
Developmental segment of a tooth
Located on the inside of the body of the ramus
Separates the developing oral cavities from the nasal cavities

28. When do the tooth buds appear?
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
The connective tissue of the marginal gingiva
The moveable attachment of the muscle
Week 11

29. Function of Geniohyoid
A junction or center of veins that directly or indirectly drain a vast area
Pulls the hyoid bone and the tongue anteriorly
Band of fibrous tissue which attaches muscle to bone
Incremental line indicating trauma of birth

30. Maxillary Nerve Branch
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Calcium salts are deposited into formed tooth
Convex area on the lingual surface near gingiva
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx

31. Primary Dentin
Dentin found between the tubules
Forms the bulk of the tooth
Small head - low nasal bridge - thin upper lip - small mandible
Found near the cementoenamel junction

32. How many cusps does the second bicuspid have?
Synovial fluid
Two
Largest division of the trigeminal nerve
What divides the tongue in half and runs from the base to the tip of the tongue

33. Circumpulpal Dentin
The layer of dentin that surrounds the pulp
A line of tissue that extends from the tongue to the floor of the mouth
Tooth emerges from gum tissue and becomes visible
Lower arch of the teeth

34. Alveologingival Fiber Groups
A horseshoe shaped groove that follow the curve of the dental arch
Inside of the maxillary teeth
Aid in attaching the gingiva to the alveolar bone
Duct located on the parotid papilla

35. Internal Oblique Ridge
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Small yellowish glands on the labial mucosa
Follows the inside of the ramus and the body of the mandible
Bicuspids

36. Torus
6 months/3years
A faint line going from the ala of the nose to the corner of the mouth
Excess bone in the middle of the palate
Pointed elongations of the pulp

37. Anterior Tonsillar Pillar
The groove below the lower lips that separates the lips from the chin
Folds of tissue that extend horizontally from the uvula to the base of the tongue
Moves the head backward and laterally
Maxillary first molar

38. Mylohyoid Artery
Upper arch of the teeth
Disk that acts like a cushion between the temporal bone and the condyloid process
Portion covered with cementum
Branches off the inferior alveolar artery before intering the mandibular canal

39. Purpose of premolars
Intervating the anterior teeth and the labial gingiva
Used to pulverize food
Rounded depression on a tooth
Shaping the tongue during speech - mastication and swallowing

40. Facial Artery
Small curved lines that run parellel to the CEJ
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
The layer of dentin that surrounds the pulp
The inner surface of the cheeks

41. Cemental Spurs
A rounded area beyond the last posterior maxillary tooth
The largest of three openings located in the posterior region of the hard palate
Found near the cementoenamel junction
Largest facial bone with two sections joined at the median suture

42. What is the maxillary cuspid known as?
Sweet --tip of the tongue - salty--anterior sides of the tongue - sour--posterior sides of the tongue - bitter--center posterior of the tongue
Permeante teeth replace the primary teeth
Circle and tighten the gingival margin around the neck of the tooth
The cornerstone of the mouth

43. Secondary palate
Functions the same as the alveolar cfg; originate in alveolar bone
Anterior to the ethmoid bone and part of the orbit (corners of the eye)
Forms the remaining 2/3 of the hard and soft palate uvula
When the tissue becomes inflamed

44. Ameloblast
Growth from the oral epithelium that gives rise to the tooth buds
Maxillary first molar
Excess dryness of the mouth
Enamel forming cells

45. Ligament
Covers muscle tissue in the posterior portion of the palate
A condition where the lower frenum attachment is very short/DDS/frenectomy
Band of fibrous tissue which attaches bone to bone
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone

46. Mandibular Artery
Largest division of the trigeminal nerve
Platysma - trapezius - sternocleidomastoid
Located behind the ramus of the mandible and branches into five arteries
Primary and permanent

47. Philtrum
Excess bone in the middle of the palate
Composed of mucosa and surrounds the necks of the teeth
A shallow v-shaped depression located below the bottom of the nose and above the lips
Place where the groove comes together or fissures cross

48. Greater Palatine Nerve
The line of demarcation between the attached gingiva and the marginal gingiva
Forms into dentin - cementum and pulp of the teeth
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Two weeks thru 8th week

49. Mantle Dentin
Forms a large cavity above the roots of the maxillary molars
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
The first predentin that is formed and matures within the tube
Mandibular central incisors

50. Retromolar Area
Wearing away of the incisal or occlusal surfaces of the tooth
A triangular area located behind the last molar
Elevated are of enamel that forms the Mesial and distal borders
Arteries supplying blood to most of the head and the neck