Embryology, Histology, & Dental Anatomy Final 2024, Exams of Nursing

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Embryology, Histology, & Dental

Anatomy Final 2024. Questions & Correct

Answers. Grade A+

• ANSThird molars A cingulum in varying developmental levels within the permanent dentition can be found on the lingual surfaces of - ANSall anterior teeth. A patient has a slowly enlarging painless swelling within the lateral neck tissue just inferior to the angle of the mandible and along the anterior border of the sternocleidomastoid muscle. Which of the following should mainly be considered to explain this situation?
• ANSRemnants from hyoid arch Cellular cementum is most likely found around which of the following root regions - ANSApical part of root During successful orthodontic therapy which of the following does not occur within the periodontal ligament? - ANSTension with narrower periodontal ligament space During tongue development, what does the epiglottic swelling develop from? - ANSFirst four pharyngeal or branchial arches During what time period during prenatal development does the nose start to have a more mature elevated appearance? - ANSFetal period From what structure does the lymph flow into the lymph node? - ANSAfferent vessel Given the turnover time of junctional epithelium, the evaluation of periodontal therapy should occur after _____ days. - ANS7 How

many pulp horns does the permanent mandibular second molar have? - ANSFour How many X-type chromosomes are necessary for the embryo to become of the female gender when present during prenatal development - ANSTwo Lateral pulp canals within the pulp chamber extend - ANSfrom pulp tissue to the periodontal ligament. The clinical attachment loss is a(n) - ANSextent of periodontal support that has been destroyed around a tooth. The foramen cecum of the tongue is a - ANSdepression at the apex of the sulcus terminalis. The lamina dura noted on radiographs corresponds to which of the following structures - ANSAlveolar bone proper of alveolar process The most permeable section of the gingiva is considered which of the following? - ANSJunctional epithelium The mucogingival junction is absent from which of the following oral surfaces? - ANSPalatal surface of maxillary arch The number of cusps present on the masticatory surface of a permanent canine is - ANSone. The root of tooth #13 is usually completed between _____ years. - ANS12 and 14 This is not considered the ideal molar relationship within the primary dentition? - ANSDistal step This tissue type is the most likely source of cementogenic cells in adults who have undergone root planning? - ANSPeriodontal ligament What are the linear elevations located on the masticatory surfaces of both anterior and posterior teeth? - ANSRidges What best characterizes the

first week of prenatal development so that the blastocyst splits into smaller and more numerous cells? - ANSMitotic cleavage What happens to the specific cells from the enamel organ that will differentiate into preameloblasts? - ANSTheir nuclei repolarize. What is the angled part of the ameloblast that secretes the enamel matrix? - ANSTomes process What is the approximate percentage of times that the permanent maxillary first premolar has one root? - ANS20% What is the correct anatomic name given to the teeth designated as "C" and "H" - ANSPrimary maxillary canines What is the timetable for permanent mandibular canines erupt timetable? - ANSErupt before maxillary canines What part of the final palate does the secondary palate give rise to? - ANSTwo-thirds of hard palate What spaces are mainly involved as the primate spaces located within the primary dentition? - ANSBetween primary maxillary lateral incisor and canine When viewing the oral mucosa of the floor of the mouth through a microscope, which of the following can be noted? - ANSExtensive vascular supply Which Angle classification of malocclusion in the permanent dentition is characterized by an ideal mesiodistal relationship of the jaws and dental arches? - ANSClass I Which Angle classification of malocclusion in the permanent dentition is characterized by the mesiobuccal cusp of the maxillary first molar occluding mesial to the mesiobuccal groove of the mandibular first molar, as

well as having the maxillary anterior teeth protrude facially from the mandibular anterior teeth? - ANSClass II, division I Which cusp on the permanent maxillary second molar shows the most variability? - ANSDistolingual cusp Which of the following ducts are connected to the intercalated ducts in the lobules of the salivary gland? - ANSStriated Which of the following embryonic structures becomes the dentinoenamel junction during completion of tooth development? - ANSBasement membrane between enamel organ and dental papilla Which of the following gingival tissue lines the floor of the gingival sulcus in a healthy situation? - ANSJunctional epithelium Which of the following is the tooth designation system that uses the digits 1 through 32? - ANSUniversal Numbering System Which of the following secretes a basal lamina on the surface that serves as a part of the primary epithelial attachment before the eruption of the tooth and after enamel maturation? - ANSAmeloblasts Which of the following statements concerning pigmentation in the oral cavity is correct? - ANSClinical levels of pigmentation are controlled by genetic programming. Which of the following structures is not part of the enamel organ? - ANSOdontoblastic layer Which of the following surfaces of a tooth are not difficult to access during dental procedures as well as homecare? - ANSFacial or lingual surfaces Which of the following terms

describes an area of the crown where three surfaces join? - ANSPoint angle Which part of the enamel organ is the main source of the junctional epithelium? - ANSStratum intermedium Which part of the periodontal ligament is noted to be wider in a healthy adult tooth - ANSBoth near apex and cervix Which permanent teeth replace the primary molars when the primary molars are shed? - ANSPremolars Which profile is present with a Class II malocclusion, division II, in a permanent dentition? - ANSMesognathic Which type of dentin makes up the largest part of the tooth's dentin? - ANSCircumpulpal dentin Which zone in the pulp contains a nerve and capillary plexus? - ANSCell-free zone With increased age, the pulp tissue can become - ANSincreasingly fibrotic.