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Dental Hygiene: Anatomy > Body Planes & Oral Cavity Structures > Flashcards

Body Planes & Oral Cavity Structures Flashcards

1
Q

Anatomical Position

A

Standing erect, arms at sides, feet together, palms facing forward

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2
Q

Interproximal

A

Between two teeth

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3
Q

Dorsal

A

The top surface (of the tongue)

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4
Q

Ventral

A

The bottom surface (of the tongue)

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5
Q

Sagittal

A

a vertical (longitudinal) plane dividing the body into left and right sections

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6
Q

Midsagittal

A

A sagittal (vertical) plane diving the body into EQUAL right and left halves

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7
Q

Frontal/Coronal Plane

A

a vertical plane diving the body into front (anterior) and back (posterior) regions

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8
Q

Transverse Plane

A

a horizontal plane dividing the body into upper (superior) and lower (inferior) regions

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9
Q

Vestibule

A

space between lips/cheeks and teeth

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10
Q

Oral cavity proper

A

area surrounded by teeth or alveolar ridges back to palatine tonsils (includes region from floor of mouth upward to soft and hard palates)

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11
Q

Fordyce Granules

A

small, yellowish bumps on the inside surface of the cheeks (normal anatomy)

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12
Q

Linea alba

A

a white line or ridge that may be seen on the inside on the cheek (normal anatomy)

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13
Q

Parotid papilla

A

opening to Stensen’s duct, where parotid gland empties

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14
Q

Frenum

A

a thin fold of connective tissue that attaches the lips and cheeks to the mucosa of the maxilla and mandible (labial and buccal frenums)

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15
Q

Diastema

A

a space created between two teeth (most commonly between the maxillary central incisors)

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16
Q

Mucobuccal and Mucolabial fold

A

point where mucosa of the lips and cheeks turns toward the gingival tissue
mucobuccal-canine to canine
mucolabial- premolars

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17
Q

Alveolar Mucosa

A

movable mucosa lying against aveolar bone

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18
Q

Mucogingival junction

A

where alveolar mucosa becomes tightly attached to bone; beginning of gingiva

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19
Q

Exostoses

A

Bony potrusions on the buccal area

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20
Q

Palatine rugae

A

horizontal (transverse) ridges of epithelial and connective tissue in anterior hard palate, covered with keratinized epithelium

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21
Q

Incisive papilla

A

bulge of tissue posterior to central incisors at midline

22
Q

Incisive foramen

A

under the incisive papilla (carries nasopalatine nerves and blood vessels)

23
Q

Incisive foramen

A

under the incisive papilla (carries nasopalatine nerves and blood vessels)

24
Q

Greater & Lesser Palatine Foramina

A

2 openings in bone on each side, lingual to 2nd and 3rd maxillary molars
Greater- nerves and blood vessels to hard palate
Lesser- nerves and blood vessels to soft palate

25
Q

Torus palatinus

A

excess bone growth that may occur in the midline of the hard palate

26
Q

Fovea palatinae (soft palate)

A

2 small depressions on each side of spine; openings of salivary glands

27
Q

Uvula (soft palate)

A

downward projecting muscle at most posterior portion at the midline

28
Q

Anterior tonsillar pillar

A

aka Palatoglossal arch fold of tissue immediately in front of palatine tonsil

29
Q

Posterior tonsillar pillar

A

aka Palatopharyngeal arch (behind palatine tonsils)

30
Q

Oropharynx

A

part of the throat posteriorly to the oral cavity. Includes: back third tongue, the soft palate, lateral and posterior walls of the throat, and the tonsils.

31
Q

Fauces

A

space between the left and right tonsils and their pillars

32
Q

Maxillary tuberosity

A

firm tissue bulge behind maxillary molars

33
Q

Retromolar pad

A

small elevation of tissues posterior to mandibular third molar

34
Q

Pterygomandibular fold

A

tissue overlying the pterygomandibular raphe (ligament extending between the anterior tonsillar pillar and the retromolar pad)

35
Q

Median Sulcus

A

midline depression on dorsal surface of tongue

36
Q

Fissured Tongue

A

deep prominent groove in the middle with fissures across the dorsal surface

37
Q

Terminal Sulcus

A

separates the body of the tongue from the root (foramen cecum is found here)

38
Q

Lingual Tonsil

A

Posterior to circumvallate papilla, large and red mucus producing glands

39
Q

Circumvallate/vallate papillae

A

location: junction of body and root
bitter flavors
hosts taste buds and von Ebner glands (lies inferiorly)

40
Q

Fungiform papillae

A

location: tips and sides of tongue
sweet and sour tastes
hosts taste buds

41
Q

Filiform papillae

A

location: anterior 2/3rds of tongue
tactile properties only
acts as an abrasive coating

42
Q

Foliate papillae

A

location: lateral surfaces of tongue
hosts many taste buds- around 1300

43
Q

Lingual Frenum

A

fold of tissue extending from near tip of tongue down to the floor of the mouth. has plica fimbriata (fringe like tissue projecting on the sides)

44
Q

Sublingual caruncles

A

2 bilateral small elevations at the base of the lingual frenum
opening for two major salivary glands: submandibular and sublingual glands

45
Q

Sublingual fold

A

fold of tissue extending from sublingual caruncle back along floor of mouth on either side of

46
Q

Mandibular tori

A

bony swellings on the lingual surface of the mandible (often at the canine area)

47
Q

Parotid Salivary Gland

A

-largest
-anterior to ear, produces 25% of saliva
-empties into Stensens duct to parotid papilla
-serous secretions

48
Q

Submandibular salivary glands

A

-two glands, below and toward posterior of the mandible
-empties into Whartons duct to sublingual caruncle
-mucous and serous secretions

49
Q

Sublingual salivary glands

A

-two glands, along sublingual folds
-smallest
-empties into Bartholins duct to sublingual caruncle
-smaller ducts (ducts of rivinus)
-mucous secretions

50
Q

List Minor salivary glands

A

-labial (upper and lower)
-buccal (inner cheek)
-palatine (soft, posterior and lateral/hard)
-glossopalatine (posterior lateral to palatine tonsil)
-lingual (anterior/tip, posterior/lingual tonsils)
-Glands of von Ebner (wash taste buds so new tastes can be perceived)**

51
Q

List Functions of Saliva

A

-helps prepare bolus of food for easier swallowing
-helps keep mucous membranes lubricated
-prevent dehydration (stimulus of dry mouth promotes water consumption)
-pH buffer (neutralizes acids to prevent tooth decay)
-contains immunoglobulins and lysozymes to to protect body
-cleanses teeth

52
Q

List Lymph Nodes

A

-submental (under chin)
-submandibular (angle of mandible)
-cervical (sides of neck)
-auricular (parotid area)
-occipital (base of skull)

Dental Hygiene: Anatomy (6 decks)

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