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

Body Planes & Oral Cavity Structures Flashcards

(52 cards)

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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

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A

bulge of tissue posterior to central incisors at midline

22
Q

Incisive foramen

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A

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

23
Q

Incisive foramen

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A

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

24
Q

Greater & Lesser Palatine Foramina

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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
Torus palatinus
excess bone growth that may occur in the midline of the hard palate
26
Fovea palatinae (soft palate)
2 small depressions on each side of spine; openings of salivary glands
27
Uvula (soft palate)
downward projecting muscle at most posterior portion at the midline
28
Anterior tonsillar pillar
aka Palatoglossal arch fold of tissue immediately in front of palatine tonsil
29
Posterior tonsillar pillar
aka Palatopharyngeal arch (behind palatine tonsils)
30
Oropharynx
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
Fauces
space between the left and right tonsils and their pillars
32
Maxillary tuberosity
firm tissue bulge behind maxillary molars
33
Retromolar pad
small elevation of tissues posterior to mandibular third molar
34
Pterygomandibular fold
tissue overlying the pterygomandibular raphe (ligament extending between the anterior tonsillar pillar and the retromolar pad)
35
Median Sulcus
midline depression on dorsal surface of tongue
36
Fissured Tongue
deep prominent groove in the middle with fissures across the dorsal surface
37
Terminal Sulcus
separates the body of the tongue from the root (foramen cecum is found here)
38
Lingual Tonsil
Posterior to circumvallate papilla, large and red mucus producing glands
39
Circumvallate/vallate papillae
location: junction of body and root bitter flavors hosts taste buds and von Ebner glands (lies inferiorly)
40
Fungiform papillae
location: tips and sides of tongue sweet and sour tastes hosts taste buds
41
Filiform papillae
location: anterior 2/3rds of tongue tactile properties only acts as an abrasive coating
42
Foliate papillae
location: lateral surfaces of tongue hosts many taste buds- around 1300
43
Lingual Frenum
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
Sublingual caruncles
2 bilateral small elevations at the base of the lingual frenum opening for two major salivary glands: submandibular and sublingual glands
45
Sublingual fold
fold of tissue extending from sublingual caruncle back along floor of mouth on either side of
46
Mandibular tori
bony swellings on the lingual surface of the mandible (often at the canine area)
47
Parotid Salivary Gland
-largest -anterior to ear, produces 25% of saliva -empties into Stensens duct to parotid papilla -serous secretions
48
Submandibular salivary glands
-two glands, below and toward posterior of the mandible -empties into Whartons duct to sublingual caruncle -mucous and serous secretions
49
Sublingual salivary glands
-two glands, along sublingual folds -smallest -empties into Bartholins duct to sublingual caruncle -smaller ducts (ducts of rivinus) -mucous secretions
50
List Minor salivary glands
-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
List Functions of Saliva
-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
List Lymph Nodes
-submental (under chin) -submandibular (angle of mandible) -cervical (sides of neck) -auricular (parotid area) -occipital (base of skull)

Dental Hygiene: Anatomy (28 decks)

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