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DMD > Oral Anatomy (FOCUS) > Flashcards

Oral Anatomy (FOCUS) Flashcards

1
Q

Fertilization happens in?

A

Ampulla of the fallopian tube

  • Longest part of the fallopian tube.
  • Ovum stage: starts with fertilization.
  • Fertilization: egg cell sperm cell meets.
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2
Q

Cell division

A

Mitosis

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3
Q

Serves as the liver and kidney of baby in womb

A

Placenta

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4
Q

Implantation begins

A

3rd-7th day

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5
Q

Implantation happens in?

A

Uterus

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6
Q

common site of ectopic pregnancy

A

Ampulla of the fallopian tube

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7
Q

development of bilaminar disc happens on

A

2nd week

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8
Q

Bilaminar disc @DORSAL area becomes NEURAL PLATE then becomes

PNS or CNS?

A

Peripheral Nervous System

@LATERAL area, NEURAL TUBE becomes: CNS

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9
Q

CNS contains

A

Brain and spinal Cord.

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10
Q

Neural tube defects would have

A

Brain: Anencephaly
Spinal Cord: Spina bifida

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11
Q

Embryonic stage is up until?

A

14th day - 56th day
(2nd week - 8th weeks)

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12
Q

the process which Bilaminar disc converts to trilaminar disc is called?

A

Gastrulation

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13
Q

Trilaminar disc contains?

A

Ectoderm, Mesoderm, Endoderm

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14
Q

Muscles and bone came from what trilaminar disc?

A

Mesoderm
- dermis, dentin, circulatory sys, kidney, internal sex organ.

Endoderm: Internal organs.
Ectoderm: Outer layer of body - epidermis, enamel organ, CNS - PNS

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15
Q

Formation of organs is called

A

Organogenesis
- starts from Embryonic stage
- 4th - 8th week.

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16
Q

earliest week of Heart beat

A

4th week

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17
Q

bone ossification happens on __ week

A

8th week
Buto - Buto

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18
Q

barr body is commonly seen in

Male or Female?

A

Female

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19
Q

MALE XXY Chromosome

A

Klinefelter’s syndrome
- xxy = barr body
- testicular atrophy

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20
Q

Age of viability - Ability of fetus to leave outside of uterus develops on

A

24th week / 6 month
- incubators

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21
Q

Lidocaine is category _ for pregnant, safe. Paracetamol is safe.
2nd trimester safe.

A

B

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22
Q

hormone of female

A

Estrogen

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23
Q

Hormone of PREGNANCY

A

Progesterone

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24
Q

Detects in pregnancy test

A

HCG “Human Chorionic Gonadotrophin”

  • early as 10 days
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25
Q

produced in yolk sac as early as 1st 6 weeks

A

Alpha-fetoprotein

Increase = NT defect

Non reactive non stress test is not good

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26
Q

generalized edema is callaed

A

Anasarca

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27
Q

Category for Dangerous meds for pregnancy

A

Category X

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28
Q

Taxoplasma gondi causes

A

Toxoplasmosis
- cat feces
- Chorioretinitis (baby)
- Intercranial Calcification
- HydroCephalus

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29
Q

Rubella is also called

A

German Measles

in Pregnancy causes
- CONGENITAL RUBELLA SYNDROME
: Deafness, Cataract, Heart defect

Other effects of rubella: Hypoplasia, hypocalcification, Cleft.

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30
Q

Cytomegalovirus / Herpes simplex number?

A

5

Pregnancy
- Jaundice
- Petechaie: pin-point skin discoloration.
Enlargement of:
- Liver (hepatomegaly) Major organ for clot formation, hemostasis, major problem complication: bleeding

  • Spleen (Splenomegaly) Graveyard of RBC; most abundant blood cell in the body 4-6million; 120 days replenish.
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31
Q

HSV:
1 - Oral Ulcer - Cold sore in children is called?
2 - Anogenital

A

Herpetic gingivostomatitis ( <10y/o)

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32
Q

Recurrent herpetic ulcer is common in

Non Kera or Keratinized mucosa?

A

Keratinized mucosa

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33
Q

Sutton’s disease is a form of

A

Canker sore / Major type of RAU

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34
Q

1st stage of syphilis

A

Chancre
- Painless ulcer

Canker sore
- Painful ulcer

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35
Q

Syphillis is caused by MO called

A

Treponema Pallidum

1st stage: Chancre
Buntis: Hutchinson’s Triad; Keratitis, lack of hearing, mulberry molars “Moons molars” , Notch incisors “Hutchinson’s Teeth”

DOC: Penicillin; Darkfield microscope

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36
Q

Maldevelopment of Branchial Pouches 3 & 4

3: Inf Parathyroid Gland, Thymus Gland
4: Sup. Parathyroid gland

A

Di-George Syndrome

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37
Q

Branchial Cleft 2, 3, 4 didn’t Fuse/close =

A

Branchial Cleft Cyst

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38
Q

Stylopharyngeus muscle is innervated by CN?

A

IX (Glossopharyngeal)

Branchial Arch: 3

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39
Q

Largest Laryngeal Cartilage

A

Thyroid Cartilage

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40
Q

Thyroid cartilage what branchial arch?

A

4
- only laryngeal cartilage in branchial arch 4

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41
Q

All laryngeal muscles came from branchial arch 6 except?

A

Cricothyroid

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42
Q

All muscles in larynx/laryngeal muscles, is innervated by recurrent laryngeal nerve, except?

A

Cricothyroid

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43
Q

Cricothyroid is innervated by

A

Superior Laryngeal Nerve.

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44
Q

Primitive oral cavity

A

Stomodeum

  • 3rd week
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45
Q

Primitive digestive cavity

A

Archenteron

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46
Q

Separates foregut from stomodeum

A

Buccopharyngeal membrane
- formation 3rd week

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47
Q

Maxillary process & Medial Nasal process forms

A

Upper lip
- forms on the 6th week
BOARDS!

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48
Q

Adenohypophysis is also known as?

A

Anterior Pituitary gland

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49
Q

Posterior pituitary gland is also known as

A

Neurohypophysis

  • Complete formation of Pituitary gland is on the 8th week.
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50
Q

Buccopharyngeal membrane ruptures on

A

4th week or 27th day

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51
Q

Face segmentation happen on the?

A

4th week

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52
Q

Tongue development starts on the?

A

4th week
D. i . l. a

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53
Q

Ant. 2/3rds of tongue is formed by Lateral lingual swelling and

A

Tuberculum Impar
- branchial arch 1

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54
Q

Post 1/3 of tongue is formed by Hypobranchial Eminences and

A

Copula
- Branchial arch 3

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55
Q

Tuberculum Impar starts the development of the?

A

Tongue

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56
Q

Tongue attach to the floor of the mouth will cause

A

Sculpting Apoptosis
- causing Lingual Frenum

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57
Q

Sulcus terminalis is pointed?

A

POSTERIORLY
(BOARDS)

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58
Q

Pit at center of sulcus terminalis is called

A

Foramen cecum
- foramen that has no blood vessel, nerve, a blind pit,

Foramen Cecum
1. Tongue
2. Anterior Cranial Fossa
= no organ, blood vessel, nerves.

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59
Q

thyroglossal duct forms on the

A

10th week

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60
Q

Tooth bud forms on the

A

6th week
- Nasal Cavity
- Upper lip
- Parotid and Submandibular Gland

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61
Q

Face, muscles of mastication, primary palate and secondary palate forms on the

A

7th week

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62
Q

Primary palate is also called?

A

Premaxilla
- canine tooth to another canine tooth

Secondary palate
- Hard and soft palate

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63
Q

Sublingual gland forms on the

A

8th week
- Palatal ready to fuse, movement of tongue to palate: FORWARD, DOWNWARD

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64
Q

Palatal closure is on the

A

9th week

Cleft Lip: common in Male
Cleft palate: Female
Cleft Lip and Palate: Male
common in 1st born child
Increase in vitamin A, b9

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65
Q

incomplete fusion of Maxillary process and Medial nasal process results to

A

Cleft lip

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66
Q

incomplete fusion of Maxillary process and lateral nasal process results to

A

Oblique facial cleft
(Boards!)

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67
Q

Maxillary process and mandibular process fusion failure

A

Transverse facial cleft

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68
Q

Median nasal process not totally fused results to

A

Median Cleft lip

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69
Q

Foramen Cecum, Olfactory placodes -> Nasal pits forms on the

A

5th week

70
Q

Calcification sequence of Primary Dentition

A

a - D - B - c - e
14th week, 15, 16, 17, 18th week.
within 4 to 6 months

71
Q

Eruption sequence of Primary Dentition

A

a - B - D - c - e

72
Q

Gold standard to determine Dental Age

A

Nolla’s stage

73
Q

Nolla’s stage:
Initial Calcification

A

2

74
Q

Nolla’s stage:
Crown completion, Starts the eruption

A

6

75
Q

Nolla’s stage:
2/3rd root completion, active eruption
- form of bone eruption

A

8

76
Q

Active eruption is due to

A

Ligament traction

77
Q

normal serial extraction sequence

A

CD4
-Canine
-1st Molar
- 1st premolar (permanent)

78
Q

Largest primary tooth

A

Md. 2nd Molar

79
Q

Smallest primary tooth

A

Mandibular central incisor

80
Q

what part of primary pulp horn is more occlusal
Distal or Mesial?

A

Mesial

81
Q

Primate space is seen in what tooth?

A

Mesial of max. Canine
Distal of mand. canine

82
Q

location of primate space in mandibular primary dentition
A. Canine - Lateral Incisor
B. Canine - Molar
C. Canine - 1st Premolar

A

B.

83
Q

tooth that has no resemblance

A

primary mandibular 1 molar

84
Q

sequence of permanent dentition Maxillary

A

CAUCASIAN: 6-1-2-4-5-3-7-8
ASIAN: 6-1-2-4-5-3-7-8

Mandibular: 6-1-2-3-4-5-7-8

85
Q

11-12 yrs old no primary tooth

A
86
Q

what is the 1st primary tooth to erupt

A

Mandibular central incisor

87
Q

1st permanent tooth to erupt

A

Mandibular central incisor

88
Q

what is the 1st succedaneous tooth to erupt?

A

permanent Mandibular Central incisor

89
Q

groove that is most constant & valuable trait to differentiate maxillary molars

A

Distolingual Groove

90
Q

Mesial marginal developmental groove is seen in

A

Max. 1 Pre-molar

91
Q

Mesiolingual developmental groove is seen in

A

Mandibular 1st pre-molar

92
Q

Largest of all pre-molar

A

Max. 1st pre-molar

93
Q

Smallest pre-molar

A

Mandibular 1st pre-molar

94
Q

tooth that has wrinkled appearance because of the presence of supplemental grooves

A

MAX. 2nd Pre-molar

95
Q

Oblique ridge is unique to Maxillary Molars, seen between triangular ridge of ____ cusp & distal cusp ridge of ____ Cusp

A

Distobuccal cusp , Mesiolingual Cusp

96
Q

Labial ridge is located at

A

Center of Canine
- present in maxillary and mandibular canine
- ONLY TOOTH THAT HAS LABIAL RIDGE

97
Q

Triangular elevation making up a divisional part of the crown

A

Cusp

98
Q

Extra formation of enamel

A

Tubercle

99
Q

Cusp/Tubercle of carabelli is seen in

A

Mesiolingual cusp of max 1st molar

100
Q

Largest cusp of maxillary molars

A

Mesiolingual cusp

101
Q

Talon’s cusp is common in

A

Maxillary Lateral Incisors

102
Q

3rd lingual cusp is called

A

Tuberculum Intermedium

103
Q

Extra enamel located at Distal Marginal Ridge

A

Tuberculum Sextum

104
Q

Primary cusp triangle

A

Mesiolingual
Mesiobuccal
Distobuccal
of Maxillary 1st Molar

105
Q

Centrally located Cingulum

A

Max: Lateral Incisor - Canine, Mand. Central Incisor.

OFF-CENTERED: Max CI, Mand Lateral and Canine

106
Q

small projections of enamel presenting 3 lobes of anterior.

A

Mamelons

107
Q

all teeth have 4 lobes except?

A

Mand 2 PM
Mand and Max 1Molars

108
Q

Anterior Maxillary and Mandibular, the shape in proximal view is?

A

Triangle

109
Q

All anterior teeth, the shape in faciolingual is?

A

Trapezoid
- longest side toward the occlusal

110
Q

All posterior teeth, shape in buccal and lingual is?

A

Trapezoid

111
Q

All Maxillary posterior teeth, shape in proximal view is?

A

Trapezoidal
- Longest side toward cervical

112
Q

all mandibular posterior teeth, the shape in proximal view is?

A

Rhomboidal

113
Q

the proximal view of maxillary posterior is rhomboid, the proximal view of mandibular posterior is trapezoid?

True or False?

A

False

114
Q

tooth numbering system in permanent dentition is called?

A. Arabic
B. roman numeral
c. Alphabet
D. Numbers

A

A. Arabic

115
Q

Universal numbering system is adopted by?

A

ADA

116
Q

FDI is adopted by?
- Federation Dentaire Internationale
- “Two digit system”
- “Binomial System”

A

World Health Organization

117
Q

Palmer was 1st created for

Primary or Permanent dentition?

A

Permanent dentition.

118
Q

separates oral cavity from nasopharynx

A

Soft Palate

119
Q

separates oral cavity from the nasal cavity

A

Hard palate

120
Q

wide tendon sheath, connecting muscle to muscle

A

Aponeurosis

121
Q

soft palate muscles are all innervated by?

A

Pharyngeal plexus
- union of pharyngeal branches of CN 9, 10, 11
- mixed nerve.
- Sensory: CN 9
- Motor: 10, 11
- Major Motor: Vagus (10)
- Accessory Motor: XI

122
Q

Soft palate muscle that is innervated by CN V

A

Tensor Veli Palatini

123
Q

Raise the floor of the oral cavity, elevate the hyoid bone/

A

Mylohyoid
- innervated by CN V

124
Q

The oblique ridge of a permanent maxillary 2nd molar joins which two cusps?

A

Mesiolingual and Distobuccal

125
Q

Lingual ridge is found on

A

Canines

126
Q

Long depression or valley between ridges and cusps

A

Sulcus

127
Q

Oriented enamel rods on primary tooth?

Occlusally or Horizontally?

A

Occlusally

Permanent tooth - Horizontally

128
Q

the roots of a primary second molar are flared to allow space for the developing tooth bud of which permanent mandibular tooth?

A

SECOND PREMOLAR

129
Q

1ST:
2ND:
3RD:
Longest crown

A
  1. mandibular canine
  2. central incisor
  3. maxillary canine
130
Q

a carious developmental pit is most likely to be found in the lingual surface of a

A

Maxillary Lateral Incisor

131
Q

Most frequently concave on the lingual surface

A

Maxillary Lateral Incisor

132
Q

Longest tooth, longest root, third longest crown

A

Maxillary Canine

133
Q

most prominent lobe in canine

A

Middle lobe
-most developed

134
Q

Anterior tooth most likely to have a bifurcated root

A

Mandibular Canine

135
Q

The mesial surface of the crown is almost parallel to the long axis and the root of a

a. Maxillary first premolar
b. mandibular 2nd re molar
c. Max. Canine
d. Mand. canine

A

D. Mandibular canine

136
Q

most symmetrical tooth is?

A

Mandibular central incisor

137
Q

Between max and mand canine, the most symmetrical tooth is?

A

Mandibular Canine

138
Q

Which of the following teeth is most likely to resist caries?

a. Max. CI
b. Mand. Canine
c. Mand. 1st premolar
d. Max. Lateral Incisor

A

B. Mandibular Canine

139
Q

a mandibular canine differs from a maxillary canine in which of the following?

A. it is longer?
b. it has a less pronounced cingulum.
c. the crown is approximately the same length
d. it has a cusp tip more nearly centered mesiodistally when viewed from the facial

A

B. It has a less pronounced cingulum

140
Q

which of the following most correctly characterized the number of roots found on a bicuspid?

A. one only
B. One or Two
c. Two Only
D. Three

A

B. One or two

141
Q

Longest crown among the posterior tooth

A

1st pre molar

142
Q

in the mandibular arch, the greatest lingual inclination of the crown from its root is seen in a permanent?

A

First Premolar

143
Q

most prominent tooth in the mouth

A

Maxillary Central Incisors
- longest and widest mesiodistal diameter among all anterior teeth

144
Q

Greatest variation in crown size and form, common to be congenitally missing, high in anomalies.

A

Maxillary lateral incisors

145
Q

Cornerstone of the dental arch, among all anterior widest labiolingual diameter.

A

Maxillary Canine
- bone: canine eminence

146
Q

Caldwell-luc procedure is performed in ___ fossa

A

Canine

147
Q

1st, 2nd, 3rd, longest root?

A
  1. Max Canine
  2. Max 2n PM
  3. Palatal root - Max. 1st molar
148
Q

tooth that has Variable occlusal anatomy, tapering crown Buccolingually, heart shape, shortest permanent teeth, high variation root alignment

A

Maxillary 3rd Molar
- DL cusp is smaller or none

149
Q

4th canal seen in

A

Mesial / mesiobuccal root

150
Q

5th cusp is @?
(Cusp of carabelli)

A

Mesiolingual Cusp

151
Q

Smallest tooth in the mouth

A

Mand. Central Incisor

152
Q

Longest crown permanent, less pronounced cingulum than max. canine.

A

Mand. Canine
- only tooth that has labial ride (md & max)

153
Q

Smallest of all premolar

A

Mand. 1PM
- snake eye appearance

Biggest of all premolar
- Max 1st PM

154
Q

H, U, Y type of occlusal is seen in

A

Mand. 2nd PM

155
Q

Most common type of lobe in mand. 2nd PM?

A

Y type (5 Lobes)

  • H & U type: 4 Lobes
156
Q

Largest mandibular tooth

A

Mandibular 1st Molar (5 cusp): Distal Cusp
“Y5 molar”

157
Q

Symmetrical occlusal of all molars (+ sign)

A

Mandibular 2nd molar

158
Q

“Groovy molar”

A

Mandibular 3rd Molar

159
Q

most complex joint in the body

A

TMJ

160
Q

Most complex cranial nerve

A

CN V

160
Q

Most complex bone

A

Sphenoid bone

161
Q

key element for TMJ stability
Functioning part of the glenoid fossa

A

Articular Eminence

Articular Fossa: NON-FUNCTIONING PART

162
Q

Longest lasting growth center

A

Condyle
- FIBROUS CONNECTIVE TISSUE

Mandible - Growth Field

163
Q

Biggest synovial joint of the head

A

TMJ
- movable joint
- “DIARTHROIDAL JOINT”

164
Q

The covering of all diarthrosis joints is Hyaline cartilage, except?

A

TMJ
- fibrocartilage/fibrous connective tissue
- atypical Synovial Joint

165
Q

Most common location of displacement/dislocation of TMJ?

A

anteromedial
- anterior displacement
- tx: downward, backward

166
Q

Mandible moves in how many planes?

A

3

  1. Frontal: Upward, Downward
  2. Horizontal : Side to side
  3. Sagittal : Forward, backward
167
Q

Hinge-like rotation, gliding movement

A

Ginglymoarthroidal Joint
-TMJ

168
Q

Sphenomandibular Ligament attaches at the?

Lingula or Angle of the mandible?

A

Lingula

169
Q

Stylomandibular Ligament attached at the?

Lingula or Angle of the mandible?

A
170
Q
A

DMD (24 decks)

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