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Dental Histology, Embryology, & Anatomy > DH Board Review > Flashcards

DH Board Review Flashcards

1
Q

Dentin that is the 1st layer immediately adjacent to the DEJ is called:

a) mantle
b) primary
c) reactive
d) circumpulpal

A

A) MANTLE

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2
Q

The floor of the mouth and the tongue receive their blood supply by the way of the:

a) facial artery
b) lingual artery
c) maxillary artery
d) mylohyoid artery

A

B) LINGUAL ARTERY

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3
Q

The insertion of the buccinator muscle includes the:

a) pterygomandibular raphe
b) zygomatic process of the maxilla
c) coronoid process of the mandible
d) skin and muscle at the corner of the mouth

A

D) SKIN AND MUSCLE AT THE CORNER OF THE MOUTH

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4
Q

What is the origin of “rests of Malassez”?

a) Junctional epithelium
b) Reduced enamel epithelium
c) Hertwig’s epithelial root sheath
d) Cementoblasts in the periodontal ligament

A

C) HERTWIG’S EPITHELIAL ROOT SHEATH

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5
Q

What is the lymph drainage for the tip of the tongue?

a) Submental to parotid to deep cervical
b) Submandibular to facial to deep cervical
c) Submandibular to parotid to deep cervical
d) Submental to submandibular to deep cervical

A

D) SUBMENTAL TO SUBMANDIBULAR TO DEEP CERVICAL

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6
Q

Where does the heartbeat originate?

a) left atrium
b) sino-atrial node
c) ventricular node
d) atrioventricular node

A

B) SINO-ATRIAL NODE

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7
Q

Which of the following tissues derive from ectoderm?

a) Bone
b) Nervous tissue
c) Dentin & pulp
d) Chewing muscles

A

B) NERVOUS TISSUE

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8
Q

Which tooth has a functional buccal cusp and a functional lingual cusp?

a) maxillary canine
b) mandibular 1st premolar
c) maxillary 2nd premolar
d) mandibular 2nd premolar

A

B) MANDIBULAR 1st PREMOLAR

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9
Q

Which of the following arteries carries deoxygenated blood?

a) renal
b) aorta
c) hepatic
d) pulmonary

A

D) PULMONARY

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10
Q

Air exchange takes place in which of the following:

a) alveoli
b) venioles
c) arteries
d) all of the above

A

A) ALVEOLI

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11
Q

Where does Stensen’s duct open?

a) Under the tongue
b) At the lingual foramen
c) Opposite the maxillary 2nd molars
d) Opposite the mandibular 2nd molars

A

C) OPPOSITE THE MAXILLARY 2nd MOLARS

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12
Q

Systolic pressure represents which of the following:

a) heart rate
b) aortic pressure
c) ventricular relaxation
d) ventricular contraction

A

D) VENTRICULAR CONTRACTION

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13
Q

When the mouth is opened widely, the articular disk moves:

a) laterally
b) medially
c) anteriorly
d) none of the above. It does not move.

A

C) ANTERIORLY

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14
Q

Which of the following plays the major role in maintaining fluid balance?

a) Liver
b) Heart
c) Kidney
d) Stomach
e) Pancreas

A

C) KIDNEY

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15
Q

The degree of mineralization of normal cementum is approximately that of:

a) bone
b) dentin
c) enamel
d) cartilage

A

A) BONE

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16
Q

The most common artery used for determining pulse rate in a conscious adult is:

a) radial
b) branchial
c) popliteal
d) external carotid
e) superficial temporal

A

A) RADIAL

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17
Q

Which of the following transmits the sensation of contact when teeth are occluding?

a) Dental pulp
b) Periosteum
c) Alveolar bone
d) Attached gingiva
e) Periodontal ligament

A

E) PERIODONTAL LIGAMENT

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18
Q

The mitral valve separates the:

a) left atrium from the aorta
b) left atrium from the left ventricle
c) right atrium from the right ventricle
d) left atrium from the pulmonary vein

A

B) LEFT ATRIUM FROM THE LEFT VENTRICLE

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19
Q

Which of the following exits from the foramen rotundum?

a) Inferior alveolar nerve
b) Maxillary division of trigeminal nerve
c) Ophthalmic division of trigeminal nerve
d) Mandibular division of trigeminal nerve

A

B) MAXILLARY DIVISION OF TRIGEMINAL NERVE

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20
Q

Secretion of insulin is primarily controlled by the:

a) hypothalamus
b) pituitary gland
c) sympathetic nervous system
d) parasympathetic nervous system
e) changes in blood glucose concentration

A

E) CHANGES IN BLOOD GLUCOSE CONCENTRATION

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21
Q

Where are von Ebner’s glands located?

a) In submucosa of the pharynx
b) In the submucosa of the cheek
c) Beneath the floor of the mouth
d) Beneath circumvallate papillae in the tongue

A

D) BENEATH CIRCUMVALLATE PAPILLAE IN THE TONGUE

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22
Q

Resilience and firmness of the gingiva are due primarily to:

a) vascularity
b) endothelium
c) fluid exudate
d) cellular elements
e) collagenous tissue

A

E) COLLAGENOUS TISSUE

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23
Q

Which gland secretes serous saliva ONLY?

a) parotid
b) sublingual
c) submandibular

A

A) PAROTID

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24
Q

Which of the following parts of a root has the thickest layer of cementum?

a) apical 3rd of root
b) middle 3rd of root
c) coronal 3rd of root
d) exposed root surface

A

A) APICAL 3rd OF ROOT

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25
Q

The suture between the premaxilla and the palatine process of the maxilla lies between:

a) central incisors
b) lateral incisor & canine
c) canine & 1st premolar
d) central & lateral incisors

A

B) LATERAL INCISOR & CANINE

26
Q

The nasopalatine nerve enters the oral cavity by the way of the:

a) lesser palatine
b) mental foramen
c) incisive foramen
d) pterygopalatine foramen

A

C) INCISIVE FORAMEN

27
Q

Pain impulses from the periodontal ligament are carried by which of the following cranial nerves?

a) I
b) V
c) III
d) VII

A

B) V

28
Q

The chemical transmitting agent that acts at the myoneural junction of skeletal muscle is:

a) adrenalin
b) histamine
c) acetylcholine
d) norepinephrine

A

C) ACETYLCHOLINE

29
Q

Which of the following attach the periodontal ligament to cementum?

a) cementoblasts
b) Sharpey’s fibers
c) Stillman’s fibers
d) hemidesmosomes

A

B) SHARPEY’S FIBERS

30
Q

A patient complains of being unable to experience touch, pain, hot, cold, or pressure on the anterior 2/3 of his tongue. The affected nerve is the:

a) vagus
b) lingual
c) hypoglossal
d) chords tympani
e) glossopharyngeal

A

B) LINGUAL

31
Q

Reduced enamel epithelium plays an important role in which of the following?

a) dentin formation
b) enamel formation
c) enamel maturation
d) epithelial attachment formation
e) outlining the dentinoenamel junction

A

D) EPITHELIAL ATTACHEMENT FORMATION

32
Q

Which of the following is a likely reaction to destruction of a focal area of odontoblasts by injury:

a) new odontoblasts will differentiate from epithelial rests of Malassez
b) new odontoblasts will form by division of vital odontoblasts adjacent to the zone of injury
c) new odontoblasts will form by differentiation from cells in the cell-rich layer of the pulp
d) none of the above

A

C) NEW ODONTOBLASTS WILL FORM BY DIFFERENTIATION FROM CELLS IN THE CELL-RICH LAYER OF THE PULP

33
Q

Histologically, gingival epithelium most closely resembles epithelium of the:

a) soft palate
b) hard palate
c) vestibular mucosa
d) transitional zone of lips

A

B) HARD PALATE

34
Q

Rests of Malassez are composed of:

a) calcified periodontal ligaments
b) calcifications in the dental pulp
c) groups of epithelial cells attached to the enamel
d) groups of epithelial cells in the periodontal ligament

A

D) GROUPS OF EPITHELIAL CELLS IN THE PERIODONTAL LIGAMENT

35
Q

Name the sensory nerve to the mandibular posterior teeth.

a) Mental
b) Buccal
c) Incisive
d) Inferior alveolar

A

D) INFERIOR ALVEOLAR

36
Q

Which of the following nodes receives lymphatic drainage from maxillary teeth?

a) Buccal
b) Submental
c) Infraorbital
d) Submandibular

A

D) SUBMANDIBULAR

37
Q

The hypoglossal nerve supplies the:

a) sublingual gland
b) muscles of the tongue
c) mucous membrane of the floor of the oral cavity
d) mucous membrane of the anterior 2/3 of the tongue

A

B) MUSCLES OF THE TONGUE

38
Q

From where does the cementum gain its nourishment?

a) Pulp
b) Odontoblasts
c) Cementocytes
d) Periodontal ligament

A

D) PERIODONTAL LIGAMENT

39
Q

Which cell is injured when the tooth overheats during an amalgam preparation?

a) osteocyte
b) osteoblast
c) ameloblast
d) odontoblast

A

D) ODONTOBLAST

40
Q

Which structure marks the embryonic origin of the thyroid gland?

a) Tonsillar pillar
b) Stensen’s duct
c) Foramen ovale
d) Foramen cecum

A

D) FORAMEN CECUM

41
Q

Which papillae have no taste buds?

a) Foliate
b) Filiform
c) Fungiform
d) Circumvallate

A

B) FILIFORM

42
Q

Which of the following is a protective pulpal response to external irritants?

a) Pulp stone
b) Pulpal fibrosis
c) Reparative dentin
d) Internal resorption
e) Secondary cementum

A

C) REPARATIVE DENTIN

43
Q

The hamulus is a landmark of the:

a) hyoid bone
b) sphenoid bone
c) temporal bone
d) maxillary 1st premolar tooth

A

B) SPHENOID BONE

44
Q

The nasopalatine nerve is a branch of which division of the trigeminal nerve?

a) Occipital division
b) Maxillary division
c) Ophthalmic division
d) Mandibular division

A

B) MAXILLARY DIVISION

45
Q

The cells that produce enamel derive from the:

a) stellate reticulum
b) junctional epithelium
c) inner enamel epithelium
d) outer enamel epithelium

A

C) INNER ENAMEL EPITHELIUM

46
Q

The temporalis muscle inserts into the:

a) sphenoid bone
b) zygomatic arch
c) mandibular molars
d) coronoid process of the mandible
e) medial side of the angle of the mandible

A

D) CORONOID PROCESS OF THE MANDIBLE

47
Q

Energy production for the cell is accomplished through oxidation of nutrients in the:

a) lysosomes
b) mitochondria
c) cell membrane
d) endoplasmic reticulum

A

B) MITOCHONDRIA

48
Q

During which time of fetal development will cleft palate form?

a) 2nd trimester
b) weeks 1 through 3
c) weeks 6 through 11
d) early in the 3rd trimester

A

C) WEEKS 6 THROUGH 11

49
Q

The action of the medial pterygoid muscle is to:

a) elevate the mandible
b) depress the mandible
c) elevate the lip during a smile
d) elevate the hyoid bone during speech

A

A) ELEVATE THE MANDIBLE

50
Q

Which tooth has a developmental groove on the mesial surface of both crown & root?

a) Maxillary 1st premolar
b) Maxillary central incisor
c) Mandibular 1st premolar
d) Maxillary 2nd premolar

A

A) MAXILLARY 1st PREMOLAR

51
Q

Eruption of the permanent maxillary central incisor commonly occurs at:

a) 6-7 yrs. of age
b) 3-4 yrs. of age
c) 7-9 yrs. of age
d) 4-5 yrs. of age

A

A) 6-7 YRS. OF AGE

52
Q

Which premolar usually has two roots?

a) Maxillary 1st
b) Mandibular 1st
c) Maxillary 2nd
d) Mandibular 2nd

A

A) MAXILLARY 1st

53
Q

Which tooth has the longest root?

a) Maxillary canine
b) Mandibular canine
c) Maxillary 1st premolar
d) Maxillary 2nd premolar

A

A) MAXILLARY CANINE

54
Q

Which of the following premolar teeth often has three cusps?

a) Maxillary 1st premolar
b) Mandibular 1st premolar
c) Maxillary 2nd premolar
d) Mandibular 2nd premolar

A

D) MANDIBULAR 2nd PREMOLAR

55
Q

Which of the following is classified a muscle of facial expression?

a) Mylohyoid
b) Temporalis
c) Zygomatic major
d) Sternocleidomastoid

A

C) ZYGOMATIC MAJOR

56
Q

The organelle responsible for cellular digestion is the:

a) lysosome
b) golgi body
c) mitochondria
d) endoplasmic reticulum

A

A) LYSOSOME

57
Q

The embryological origin of the face is largely from the:

a) 2nd branchial arch
b) 2nd & 3rd branchial arches
c) frontal process & 1st branchial arch
d) frontal process & 2nd branchial arch

A

C) FRONTAL PROCESS & 1st BRANCHIAL ARCH

58
Q

The cranial nerve which provides parasympathetic innervation to the parotid gland:

a) vagus
b) trochlear
c) hypoglossal
d) glossopharyngeal

A

D) GLOSSOPHARYNGEAL

59
Q

The mylohyoid muscle:

a) lifts the upper lip
b) tenses the lower lip
c) contributes to a frown
d) comprises the floor of the mouth

A

D) COMPRISES THE FLOOR OF THE MOUTH

60
Q

Protein synthesis occurs in the:

a) cytoplasm
b) mitochondria
c) cell membrane
d) rough endoplasmic reticulum

A

D) ROUGH ENDOPLASMIC RETICULUM

Dental Histology, Embryology, & Anatomy (2 decks)

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