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Histopathology > Exam 1 practice questions > Flashcards

Exam 1 practice questions Flashcards

1
Q

Cleft lip is from a defective fusion of:

A

medial nasal process & maxillary process

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2
Q

Type of cyst that presents in the maxilla between the palatine shelves and primary plate

A

nasopalatine

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3
Q

What derivative of mesoderm makes skeleton?

A

somites from paraxial mesoderm

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4
Q

case study: extrusion of dura and arachnoid mater

A

meningocele

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5
Q

The facial nerve does special sensory to the anterior 2/3 of the tongue. Hypoglossal does sensory to anterior 2/3 of tongue

A

First statement true, second statement false

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6
Q

Thyroglossal duct cyst and lateral cervical cyst result from ducts and not from invaginating foramen cecum

A

True

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7
Q

Median rhomboid glossitis is typically found on the lateral tongue. It is typically associated with candida.

A

First statement is false (should be posterior). Second statement is true

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8
Q

Cervical loops form between OEE and stratum intermedium. They form the CEJ in adults

A

First statement false. Second statement true

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9
Q

Epithelial diaphragm determines:

A

number of roots

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10
Q

Odontoma defects occur in the initiation stage. they result in small fragment of dentin, enamel, and cementum.

A

both statement true

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11
Q

Most common neoplastic lesion in jaw arising from odontogenic epithelium

A

ameloblastoma

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12
Q

Most common neoplastic lesion arising form odontogenic epithelium

A

amelobastoma

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13
Q

Case study: tubercle formation is a defect during cap stage. It is common on central incisors.

A

Both statement are true

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14
Q

What do neural crest cells not make:

A

enamel

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15
Q

Case study: missing 6 teeth

A

oligodontia

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16
Q

Twinning tooth with tooth count missing 1

A

fusion

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17
Q

dentigerous cyst:

A

attached to CEJ, comprises 20% of all jaw cysts

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18
Q

OKC presents as multilocular lesions. 65% located in mandible.

A

Both are true

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19
Q

Appositional growth can be found in tooth growth. It is best seen when enamel and dentin grow away from eachother.

A

both statement true

20
Q

Primary cuticle nasmyth’s membrane is comprised of what 4 layers?

A

OEE, Reduced ameloblasts (IEE), Stellate reticulum, and stratum intermedium

21
Q

Dilaceration is caused by:

A

Hertwig’s root sheath

22
Q

Optical phenomenon from changes in enamel rod direction

A

Hunter-shreger bands

23
Q

What is false about enamel spindles?

A

They are hypermineralized

24
Q

Patient with excess fluoride would show:

A

brown mottled spots

25
Q

What are enamel tufts made of?

A

Enamelin and tuftelin

26
Q

Dental follicle develops into all except what?

27
Q

What does the dental follicle develop into

A

PDL, cementum, and alveolar bone proper

28
Q

What does the dental papilla become?

29
Q

The stratum intermedium produces:

A

alkaline phosphatase

30
Q

Bud/cap stage consists of proliferation, differentiation, and morphogenesis. Maturation stage consists of induction and proliferation.

A

First statement true, second statement false

31
Q

Where is apoptosis INITIALLY seen?

32
Q

Gnarled enamel is abrasian resistant. It is seen in the CEJ

A

first statement true, second statement false

33
Q

Amelogenin moves towards ameloblasts where it is degraded. As this happens the enamel crystals grow.

A

both statements ture

34
Q

Enamelin is the biggest protein. Based on its position it helps crystals grow and nucleate.

A

both statements are true

35
Q

Eneamel typically does not have tensile strength and has elastic properties…flexible…

36
Q

Radiograph pic of cyst attached to CEJ

A

Dentingerous cyst

37
Q

Defect of spinal cord not fusing all the way

A

spina bifida

38
Q

Conscrence question: occurs during what stage?

A

Apposition/maturation

39
Q

True or false: the primitive streak invaginates to form mesoderm

40
Q

Something about tuftelin and it linking enamel and cementum

A

false- tuftelin link enamel and dentin

41
Q

What arch/structre does the anterior 2/3 tongue come from:

A

1st- lateral lingual swellings

42
Q

Patient presents with a large swelling on the neck. Upon exam you notice the swelling is aligned with the sternocledomastoid muscle. What is the possible diagnosis.

A

lateral cervical cyst from cervical sinus

43
Q

Case study: a patient has an okc cyst, upon biopsy what would be found in the lumen?

44
Q

What is true about CEPs?

A
  1. periodontal issues
  2. present in mandibular molars
  3. ameloblasts that have migrated to the root
  4. one more but they were all true
45
Q

Something about the sequence of reciprocal induction with odontoblasts secreting mantle dentin and ameloblasts secreting enamel matrix..

Histopathology (15 decks)

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