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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. Papilla
Duct located on the parotid papilla
Second teeth next to central incisors
Small raised projections where taste buds are located
Enamel forming cells

2. Fetal Alcohol Syndrome symptons
Shaping the tongue during speech - mastication and swallowing
A shallow v-shaped depression located below the bottom of the nose and above the lips
Small head - low nasal bridge - thin upper lip - small mandible
Small dark brushes

3. Facial Vein
Wings of the sphenoid bone
Drains the facial structures beginning near the eye and descending toward the mandible
Vertical groove on the midline of the upper lip
H20 - mucin - organic salts and digestive enzymes

4. Internal Jugular Vein
Greater - lesser - naso palatine nerves
Calcium salts are deposited into formed tooth
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Supplies blood to the face and oral cavity

5. Morpho differentiation
The development of different forms
Small yellowish glands on the labial mucosa
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
4/5 cusps/ 3 roots

6. Maxilla
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves
10 days
Largest facial bone with two sections joined at the median suture

7. What is saliva made of?
Function to resist rotational forces and tilting
A junction or center of veins that directly or indirectly drain a vast area
The deepest point of the vestibule
H20 - mucin - organic salts and digestive enzymes

8. Gingiva
Retracts or depresses the tongue
Folds of tissue to the the lingual veins
A dense tissue covered with mucous membrane that can withstand chewing
Follows the inside of the ramus and the body of the mandible

9. Glenoid Fossa
Oval depression of temporal bone in condyloid process
Pulls the hyoid bone and the tongue anteriorly
A pocket formed by the soft tissue of cheeks and gingiva
Three cusps/ trifurcated

10. Fibroblasts
Cells From which connective tissue evolve
A small projection in the middle of the upper lip
Raised vertical folds of tissue on the lateral border of the tongue
Small head - low nasal bridge - thin upper lip - small mandible

11. Styloid Process
Sharp projection on the under surface of the temporal bone
Responsible for laying down the enamel matrix into place
Fleshy elevation under the tongue
Act to maintain the gingival integrity of the marginal gingiva

12. What teeth are removed if overcrowding occurs?
Inner portion of the enamel rod
6 years old
Found near the cementoenamel junction
Bicuspids

13. Lateral Incisor
Scroll like bones outside the nasal cavaties
Second teeth next to central incisors
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
Supportive fibers that anchor the tooth to the bone

14. Pit
Shed from the oral cavity
Place where the groove comes together or fissures cross
Inner portion of the enamel rod
Small head - low nasal bridge - thin upper lip - small mandible

15. Mamelons
Hinge motion and gliding movement
A horseshoe shaped groove that follow the curve of the dental arch
Three bulges on the incisal edge
Covering over the enamel that is left over from the epithelium ameloblasts

16. Uvula
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 projection that extends off the back of the soft palate
Primary and permanent
The bone that separates the root on a tooth

17. Xerostomia
A bony projection that separates each socket
Palatoglossus - palatopharyngeal
Excess dryness of the mouth
Forming organ takes shape and resembles the shape of a bell

18. Gums
Tissue covering the alveolar processes
Moves the head backward and laterally
Excess dryness of the mouth
H20 - mucin - organic salts and digestive enzymes

19. Midline
Chewing and swallowing food
Middle line of the teeth
Bony projection found on the bottom border of the temporal bone
Calcified masses of dentin

20. Interdental Septum
A bony projection that separates each socket
What divides the tongue in half and runs from the base to the tip of the tongue
Biting edge of the teeth
Divides the crown and the root

21. What are the 4 muscles of the floor of the mouth?
Digstric - Mylohyoid - stylohyoid - geniohyoid
Canal or passage for fluid
A dense tissue covered with mucous membrane that can withstand chewing
Follows the inside of the ramus and the body of the mandible

22. Articular Disc
Draws down the mandible and corners of the mouth
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
Bony projection found on the bottom border of the temporal bone
Lower arch of the teeth

23. Distal
An enclosed area that matures into dentin - cementum and pulp
Surface away from the midline
Follows the length of the body of the mandible past the last tooth and up to the ramus
A raised area of tissue laying behind the maxillary central incisors on the hard palate

24. Caruncle
Fleshy elevation under the tongue
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
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
2 small raised folds of tissue where the lingual frenum attaches

25. Endoderm
Supplies blood to the roots and periodontal ligaments of the molars and premolars
Separates the developing oral cavities from the nasal cavities
Respiratory system - digestive system and glandular organs
Pulls the hyoid bone and the tongue anteriorly

26. What kind of root does the maxillary first molar have?
What divides the tongue in half and runs from the base to the tip of the tongue
Triferacated
Permeante teeth replace the primary teeth
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx

27. What teeth do the deciduous (baby) tooth not include?
Duct located on the parotid papilla
No bicuspids/ no 3rd molars
The portion of the tooth that meets the gingiva
Mildest form of cleft palate

28. Facial development
Joined at the midline and are often referred to as the median Palatine suture
The internal surface at the center of the mandible
4th week
A flap of tissue on the on the buccal mucosa

29. How many teeth are in the permanent set of teeth?
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Origin - fixed point - insertion - movable point
32
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct

30. Foliate Papillae
Radiates from the developmental groove
A shallow v-shaped depression located below the bottom of the nose and above the lips
Raised vertical folds of tissue on the lateral border of the tongue
Excess bone formations under the tongue on the alvellar bone

31. Xygote
The mandibular first premolar
Conception thru the first two weeks
A horseshoe shaped groove that follow the curve of the dental arch
Hair-like projections anterior to the circumvallate papillae and covering the dorsal side of the tongue

32. Naso Palatine Nerve
6 months/3years
No bicuspids/ no 3rd molars
A duct that empties into the mouth thru the parotid papilla - Parotid gland goes with Stensen's duct
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen

33. lst and second premolars
Study of the structure and form of the teeth
Short tubules that seem to crossover to the enamel
Buccal - lingual - and inferior alveolar
Teeth after cuspids

34. Infraorbital Foramen
Two weeks thru 8th week
10 days
Opening in the mouth below the orbit on the maxillary bone
Located in a depressed area between the pillars

35. Torus Mandibularis
An extension of an unattached gingiva and the tooth
Pointed elongations of the pulp
Excess dryness of the mouth
Excess bone formations under the tongue on the alvellar bone

36. Enamel Spindle
Serves the soft palate - hard palate - medial gingival and mucous membrane as far forward as the anterior teeth
Cut - tear - and grind food
Extends from the medial corner of the eye to the nasal cavity
Short tubules that seem to crossover to the enamel

37. Soft Palate
Covers muscle tissue in the posterior portion of the palate
Triferacated
Mildest form of cleft palate
1500 millimeters

38. Imbrication lines
No bicuspids/ no 3rd molars
A junction or center of veins that directly or indirectly drain a vast area
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10

39. Denticion
Scroll like bones outside the nasal cavaties
Descends from the cusp and widens as it runs down to the midline area of the occlusal surface
Natural teeth in position
Functions the same as the alveolar cfg; originate in alveolar bone

40. Pterygoid Process
Wings of the sphenoid bone
When the tissue becomes inflamed
Portion of the lips where the skin meets the vermilion zone
Aid in attaching the gingiva to the alveolar bone

41. Cortical Bone
Forms the remaining 2/3 of the hard and soft palate uvula
Compact bone plate of the facial and lingual surfaces
Synovial fluid
Two smaller openings located behind the greater Palatine Foramen in the posterior region of the hard palate

42. Osteoclasts
Located on the inside of the body of the ramus
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Innervates the orbicular oculi - the area around the eye - and the area around and behind the zygomatic arch
The study of the microscopic structure and functions of tissues

43. How many cusps/ roots do the maxillary first molars have?
4/5 cusps/ 3 roots
Act to maintain the gingival integrity of the marginal gingiva
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
Inside surface Which is towards the tongue - on anterior teeth

44. What are the eight landmarks of the face?
Portions of the tooth structure that support hard and soft dental tissues and the alveolar bone
Digstric - Mylohyoid - stylohyoid - geniohyoid
Tissue fluid surrounding the cell membrane of the odontoblast
Ala of the nose - naso-labial groove - philtrum - vermilion border - vermilion zone - turbercle of the lip - labial commissures - labio-mental grooves

45. Alveolar Mucosa
Maxillary third molar
Secrete saliva to assist in process of digestion
Appears to be loosely attached - covering the alveolar bone.
The area on the crown of the tooth that is nearest the gingival

46. What are the 4 cranial nerves that ennervate the face and oral cavity
The bone that separates the root on a tooth
Incremental lines around the layers of the enamel matrix
Trigeminal - facial - glossopharyngeal - hypoglossal
Middle line of the teeth

47. Saliva
A bat shaped bone which forms the anterior portion of the skull
Separation of the upper lip ( 1 of 1000 live births)
Act to maintain the gingival integrity of the marginal gingiva
Clear fluid secreted by the salivary and mucous glands throughout the mouth

48. What are the 4 maxillary nerve branches?
Joined at the midline and are often referred to as the median Palatine suture
Causes a thickening of the cementum around the apex
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Canal or passage for fluid

49. Mesial
The outer edge of the nostril
Tributary of the facial vein which connects the facial vein to the pterygoid plexus of the veins
6 months/3years
Surface towards the midline

50. Histo Differentation
6 months/3years
The development of different tissues
Largest division of the trigeminal nerve
Shed from the oral cavity

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Dental Assisting: Head And Neck Anatomy

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