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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. Periodontal Ligaments
Initiation of the tooth begins
A flap of tissue on the on the buccal mucosa
Moves the head backward and laterally
Formed by the fibroblast cells and secures the tooth in the socket

2. Eruption
Tooth emerges from gum tissue and becomes visible
Enamel is thinner - pulp chamber is smaller -
Resist rotational forces and hold teeth in inter-proximal contact
More common in girls--the failure of the palatal shelves to fuse with the primary palate (1 in 2500 births)

3. Uvula
Resist rotational forces and hold teeth in inter-proximal contact
Quarters of the teeth
Draws down the mandible and corners of the mouth
A projection that extends off the back of the soft palate

4. Stenson's Duct
Duct located on the parotid papilla
Maxillary first molar
Draws the hyoid bone superiorly and posteriorly and stabilizes it
Quarters of the teeth

5. Incisal Edge
Biting edge of the teeth
Forms a large cavity above the roots of the maxillary molars
The study of the microscopic structure and functions of tissues
Study of prenatal growth and the developing process of an individual

6. Pulp horns
Forms a large cavity above the roots of the maxillary molars
Greater - lesser - naso palatine nerves
Forms the bulk of the tooth
Pointed elongations of the pulp

7. Anterior Tonsillar Pillar
Raised vertical folds of tissue on the lateral border of the tongue
Cut - tear - and grind food
6 months/3years
Folds of tissue that extend horizontally from the uvula to the base of the tongue

8. Philtrum
Arteries supplying blood to most of the head and the neck
A shallow v-shaped depression located below the bottom of the nose and above the lips
Extends interiorly from the pterygopalatine nerve and exits thru the incisive foramen
Incremental lines around the layers of the enamel matrix

9. Fungiform Papillae
Opening for the ear
Papillae that give the tongue the strawberry effect
Upper arch of the teeth
Appears to be loosely attached - covering the alveolar bone.

10. Articular Disc
Exits the mandibular canal at the mental foramen and supplies the chin and lower lip
Wings of the sphenoid bone
Also known as meniscus it is a dense fibrous connective tissue that is thicker at the ends and attached to the condyle
A bat shaped bone which forms the anterior portion of the skull

11. Imbracation Lines
Joined at the midline and are often referred to as the median Palatine suture
6 years old
Small curved lines that run parellel to the CEJ
Mildest form of cleft palate

12. How much saliva do the salivary glands produce in 24 hours?
Depression forming a groove that sends from the middle of the buckle surface to the occlusal surface of the tooth
The layer of dentin that surrounds the pulp
2 to 3 pints
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

13. Gland
Supportive fibers that anchor the tooth to the bone
Cluster of tissue that manufactures and secrets fluid
Forms a large cavity above the roots of the maxillary molars
The line of demarcation between the attached gingiva and the marginal gingiva

14. Gingiva
The portion of the tooth that meets the gingiva
A dense tissue covered with mucous membrane that can withstand chewing
Occurs in unusual ways and distorted crowns may appear
Cells develop into different tissues

15. Landmarks
Supplies the mylohyoid muscle and the anterior belly of the digastric muscle
Skeletal or soft tissue structures used as reference points in describing locations of anatomical structures or taking measurements
6 years old
The space between the unattached gingiva and the tooth

16. Rami
Two vertical extensions of the mandible
Assists in elevating the chin
Fleshy elevation under the tongue
Forms the remaining 2/3 of the hard and soft palate uvula

17. Maxillary Nerve Branch
Extends from the medial corner of the eye to the nasal cavity
Intervating the anterior teeth and the labial gingiva
A sensory nerve that ennervates the nose - cheeks - palate - gingiva - maxillary teeth - maxillary sinus - tonsils and nasal pharynx
Lining covers inside of the oral cavity

18. Vermilion Zone
Small bony projections surrounding the lingual foramen
Largest division of the trigeminal nerve
Portion of the lips that are red
Forms the bulk of the tooth

19. How many teeth are in the permanent set of teeth?
Small grooves noted on some teeth
32
Forms the remaining 2/3 of the hard and soft palate uvula
Clear fluid secreted by the salivary and mucous glands throughout the mouth

20. Mixed Dentition
Study of prenatal growth and the developing process of an individual
A period of both primary teeth and permeant teeth are in the dentition
Narrow long enamel tuft
Where the ramus meets the body of the mandible on the outside border

21. Intercellular Substances
Drains the Pterygoid plexus of the veins
Small head - low nasal bridge - thin upper lip - small mandible
Fleshy elevation under the tongue
Substances between cells

22. Linea Alba
Responsible for laying down the enamel matrix into place
A raised white line that runs parallel to where the teeth meet on the buccal mucosa
Bluish veins that run the length of the tongue
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged

23. Retromolar Area
Tissue covering the alveolar processes
A triangular area located behind the last molar
32
The gingiva in the floor of the gingival sulcus that attaches to the enamel

24. Hyoid Bone
Wearing away of the incisal or occlusal surfaces of the tooth
Folds of tissue that extend horizontally from the uvula to the base of 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
Bicuspids

25. Osteoclasts
A junction or center of veins that directly or indirectly drain a vast area
Dissolve and reabsorb calcium salts of the bone matrix when stressed or damaged
Forming organ takes shape and resembles the shape of a bell
Cheek bones--the most breakable bone in the body

26. Mantle Dentin
The first predentin that is formed and matures within the tube
9 months (5 months ultrasound to tell sex)
Hinge motion and gliding movement
Lift the hyoid bone and assist in opening the mouth

27. Posterior Tonsillar Pillar
Where the ramus meets the body of the mandible on the outside border
The groove below the lower lips that separates the lips from the chin
Healthy gingival tissue with an orange texture
Set of arches found farther in the back of the throat

28. How can you tell if someone has cancer by looking at the tongue?
Looking at the border of the tongue
Disk that acts like a cushion between the temporal bone and the condyloid process
Portion of the lips that are red
Portion of the lips where the skin meets the vermilion zone

29. Enamel Dysplasia
When the surface of the teeth becomes grooved
Found only in multi-rooted teeth and resists rotational forces
Scroll like bones outside the nasal cavaties
A bony projection that separates each socket

30. What ligament is retained the longest during periodontal disease?
Functions the same as the alveolar cfg; originate in alveolar bone
Interdental ligament
Triangular space in the gingival direction when two adjacent teeth are in contact
Supplies blood to the brain and the eyes

31. Cleft Uvula
Zygomatic - infraorbital - posterior superior alevolar - pterygopalatine
Occurs in unusual ways and distorted crowns may appear
Mildest form of cleft palate
Wings of the sphenoid bone

32. Anterior Alveolar Nerve
Functions the same as the alveolar cfg; originate in alveolar bone
Used to pulverize food
Intervates the anterior maxillary sinus - gingiva - cuspids - laterals - and central incisors
Cells that form dentin

33. Hypercementosis
Trigeminal nerve--because it ennervates the maxilla and the mandible
Rounded depression on a tooth
Causes a thickening of the cementum around the apex
Drains the superficial veins of the face and neck into the subclavian vein

34. Oblique Ridge
H20 - mucin - organic salts and digestive enzymes
Elevated area fo enamel that extends obliquely across the occlusal surface of the tooth
Drains the floor of the mouth
The area on the crown of the tooth that is nearest the gingival

35. Quadrants
Natural teeth in position
A rounded area beyond the last posterior maxillary tooth
Quarters of the teeth
Hinge motion and gliding movement

36. Function of Digastric
Pulverizing or chewing surface
Corners of the mouth
Ligaments and muscles of mastication
Lift the hyoid bone and assist in opening the mouth

37. Purpose of premolars
Study of prenatal growth and the developing process of an individual
Used to pulverize food
1500 millimeters
An extension of an unattached gingiva and the tooth

38. External Carotid Artery
The deepest point of the vestibule
Slight ridges on the cervical third of certain teeth that extend mesiodistally
Supplies blood to the face and oral cavity
2 small raised folds of tissue where the lingual frenum attaches

39. Maxillary Artery
Bony projection found on the bottom border of the temporal bone
Receives blood from the cranium - face and neck and drains into the brachiocphalic vein
Largest of the branches of the external carotid artery; supplies facial structure
Extends from the medial corner of the eye to the nasal cavity

40. Glenoid Fossa
Excess bone in the middle of the palate
Act to maintain the gingival integrity of the marginal gingiva
Assist in depressing the mandible and elevating the tongue
Oval depression of temporal bone in condyloid process

41. Dentinal Tubules
Tubules that pass through the entire surface of the dentin
Scroll like bones outside the nasal cavaties
Covering over the enamel that is left over from the epithelium ameloblasts
Supplies blood to the face and oral cavity

42. If a patient receives toxic agents - how long does it take for their sense of taste to return?
An extension of an unattached gingiva and the tooth
Inside surface Which is towards the tongue - on anterior teeth
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
10 days

43. Bud stage
A period of both primary teeth and permeant teeth are in the dentition
The portion of the tooth that meets the gingiva
Responsible for laying down the enamel matrix into place
Initiation of the tooth begins

44. Embryo
The cornerstone of the mouth
Two weeks thru 8th week
Middle line of the teeth
Portion of the lips where the skin meets the vermilion zone

45. Contour Lines of Owen
The mandibular first premolar
Demonstrates a disturbance in the body metabolism
Pulls the hyoid bone and the tongue anteriorly
Week 12

46. Inferior Alveolar Artery
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
Pointed or rounded mounds on the crown of the tooth
Initiation of the tooth begins
Distends the ramus - enters the mandibular foramen and bifurcates around the first premolar tooth to form the incisive and the mental arteries

47. Clinical root
Portion of the root seen in the oral cavity
Small bony projections surrounding the lingual foramen
Cluster of tissue that manufactures and secrets fluid
4/5 cusps/ 3 roots

48. Greater Palatine Foramen
The largest of three openings located in the posterior region of the hard palate
Compact bone plate of the facial and lingual surfaces
Looking at the border of the tongue
Outside surface Which is towards the lips

49. What is the most common problem with TMJ
The disc becomes displaced
The line of demarcation between the attached gingiva and the marginal gingiva
Largest papilla - mushroom shaped and are anterior to the sulcus terminalis in a row of 8 to 10
The slightly raised line extending down the middle of the hard palate

50. Mandibular Foramen
Located on the inside of the body of the ramus
Used to pulverize food
A bat shaped bone which forms the anterior portion of the skull
Study of prenatal growth and the developing process of an individual