National Board Exam with Questions Consisting of Multiple Choices and Verified Answers .

National Board Exam with Questions
Consisting of Multiple Choices and
Verified Answers 2025-2026




Which ,paired ,muscle ,covers ,most ,of ,the ,lateral ,aspect ,of ,the ,ramus ,of ,the ,mandible
A. ,Temporalis
B. ,Masseter ,
C. ,Lateral ,Pterygoid
D. ,Medial ,Pterygoid ,- ,CORRECT ,ANSWER-B. ,Masseter

During ,periodontal ,surgery ,a ,fenestration ,is ,exposed ,on ,tooth ,#6. ,A ,fenestration ,is ,a
,defect ,of ,which ,type ,of ,bone?
A. ,Compact ,bone
B. ,Cancellous
C. ,Interdental
D. ,Interradicular ,- ,CORRECT ,ANSWER-A. ,Compact ,bone

The ,fibrous ,connective ,tissue ,membrane ,covering ,the ,outside ,of ,bone ,is ,called ,the
A. ,Endosteum
B. ,Periosteum
C. ,Hyaline ,Cartilage
D. ,Articular ,cartilage ,- ,CORRECT ,ANSWER-B. ,Periosteum

What ,is ,the ,purpose ,of ,the ,synovial ,membrane ,in ,a ,synovial ,joint
A. ,Secrete ,fluid ,into ,the ,joint ,cavity ,
B. ,Surrounds ,the ,joint ,like ,a ,fibrous ,sleeve
C. ,Innervates ,the ,muscles ,that ,move ,the ,joint
D. ,Convey ,a ,sense ,of ,position ,and ,movement ,- ,CORRECT ,ANSWER-A. ,Secrete ,fluid
,into ,the ,joint ,cavity


Which ,component ,of ,a ,nerve ,conducts ,impulses ,towards ,the ,cell ,body
A. ,Axon

,B. ,Soma
C. ,Neuron
D. ,Dendrite ,- ,CORRECT ,ANSWER-D. ,Dendrite

Which ,spinal ,vertebrae ,fuse ,together ,to ,form ,a ,triangular ,mass?
A. ,Sacral
B. ,Lumbar
C. ,Cervical
D. ,Thoracic ,- ,CORRECT ,ANSWER-A. ,Sacral

The ,ophthalmic ,nerve ,is ,the ,first ,division ,of ,the ,5th ,cranial ,nerve ,V, ,the ,trigeminal
,nerve. ,The ,maximally ,nerve ,is ,the ,second ,division ,of ,the ,trigeminal ,nerve.
A. ,Both ,statements ,are ,true ,
B. ,Both ,statements ,are ,false
C. ,First ,statement ,is ,true, ,second ,statement ,is ,false
D. ,First ,statement ,is ,false, ,second ,statement ,is ,true ,- ,CORRECT ,ANSWER-A. ,Both
,statements ,are ,true


Which ,injections ,technique ,would ,be ,used ,to ,achieve ,anesthesia ,of ,teeth ,#15 ,and
,#16
A. ,Nasopalatine ,block
B. ,ASA ,block
C. ,MSA ,block
D. ,PSA ,block ,- ,CORRECT ,ANSWER-D. ,PSA ,block

The ,infraorbital ,foramen ,is ,located ,in ,which ,bone?
A. ,Frontal
B. ,Maxilla ,
C. ,Zygomatic
D. ,Sphenoid ,- ,CORRECT ,ANSWER-B. ,Maxilla

All ,of ,the ,following ,are ,formina ,in ,the ,sphenoid ,bone ,except ,the:
A. ,Incisive ,
B. ,Superior ,orbital ,fissure
C. ,Foramen ,ovale
D. ,Foramen ,rotundum ,- ,CORRECT ,ANSWER-A. ,Incisive

Which ,muscle ,retracts ,the ,tongue
A. ,Genioglossis
B. ,Hyloglossis
C. ,Styloglossis ,
D. ,Palatoglossis ,- ,CORRECT ,ANSWER-C. ,Styloglossis

Which ,plane ,of ,discretion ,divides ,the ,body ,into ,anterior ,and ,posterior ,portions?
A. ,Frontal ,
B. ,Sagittal

,C. ,Horizontal
D. ,Median ,- ,CORRECT ,ANSWER-A. ,Frontal

Teeth ,#3 ,and ,#14 ,are
A. ,Ipsilateral
B. ,Contralateral
C. ,Inferior
D. ,Superficial ,- ,CORRECT ,ANSWER-B. ,Contralateral

The ,following ,characteristics ,describe ,the ,muscle ,tissue ,except ,one, ,which ,is ,the
,exception:
A. ,Each ,muscles ,has ,two ,ends
B. ,Muscle ,cells ,are ,called ,sarcomeres ,
C. ,Muscles ,are ,categorized ,according ,to ,their ,role ,in ,movement
D. ,The ,muscle ,origin ,is ,attached ,to ,the ,least ,moveable ,part
E. ,The ,muscle ,insertion ,is ,attached ,to ,the ,most ,moveable ,part ,- ,CORRECT
,ANSWER-B. ,Muscle ,cells ,are ,called ,sarcomeres


Which ,lymph ,nodes ,drain ,both ,sides ,of ,the ,chin ,the ,lower ,lip, ,floor ,of ,the ,mouth, ,the
,apex ,of ,the ,tongue ,and ,the ,mandibular ,incisors
A. ,Facial
B. ,Submental ,
C. ,Submandibular
D. ,Retropharyngeal ,- ,CORRECT ,ANSWER-B. ,Submental

Which ,endocrine ,gland ,matures ,T ,lymphocytes ,for ,the ,immune ,system ,and
,undergoes ,involution ,(reduces ,in ,size) ,after ,puberty
A. ,Thyroid
B. ,Thymus
C. ,Pancreas
D. ,Parathyroid ,- ,CORRECT ,ANSWER-B ,Thymus

The ,corrugator ,supercilli ,is ,a ,muscle ,of ,facial ,expression ,in ,which ,region
A. ,Eye ,
B. ,Nose
C. ,Mouth
D. ,Scalp ,- ,CORRECT ,ANSWER-A. ,Eye

Which ,muscles ,elevates ,the ,mandible
A. ,Risorius
B. ,Buccinator
C. ,Medial ,pterygoid ,
D. ,Lateral ,pterygoid ,- ,CORRECT ,ANSWER-C. ,Medial ,pterygoid

Which ,muscle ,originates ,from ,the ,alveolar ,process ,of ,the ,maxilla, ,there ,alveolar
,process ,of ,the ,mandible ,and ,the ,pterygoid ,mandibular ,raphe

, A. ,Masseter
B. ,Risorius
C. ,Buccinator
D. ,SCM ,- ,CORRECT ,ANSWER-C. ,Buccinator

Which ,part ,of ,the ,brain ,regulates ,homeostasis
A. ,Medulla
B. ,Thalamus
C. ,Cerebellum
D. ,Hypothalamus ,- ,CORRECT ,ANSWER-D. ,Hypothalamus

Which ,branch ,of ,the ,tirgmenial ,nerve ,contains ,both ,sensory ,and ,motor ,components
A. ,Ophthalmic ,V1
B. ,Maxillary ,V2
C. ,Mandibular ,V3 ,- ,CORRECT ,ANSWER-C. ,Mandibular ,V3

Which ,of ,the ,following ,are ,the ,two ,main ,division ,or ,systems ,of ,the ,autonomic ,nervous
,system?
A. ,Brain, ,spinal ,cord
- ,central ,nervous ,system
B. ,Afferent ,impulses, ,efferent ,impulse
C. ,Sympathetic ,and ,parasympathetic ,systems ,- ,CORRECT ,ANSWER-C. ,Sympathetic
,and ,parasympathetic ,systems


Which ,cranial ,nerve ,provides ,parasympathetic ,innervation ,to ,the ,cardiac ,muscles,
,thymus ,and ,stomach?
A. ,IV
B. ,X
C. ,XI
D. ,XII ,- ,CORRECT ,ANSWER-B. ,X ,(vagus)

Which ,of ,the ,following ,is ,NOT ,innervated ,by ,the ,middle ,superior ,alveolar ,nerve?
A. ,Tooth ,#4
B. ,Tooth ,#12
C. ,Distobuccal ,root ,of ,tooth ,#2 ,
D. ,Mesiobuccal ,root ,of ,tooth ,#14 ,- ,CORRECT ,ANSWER-C. ,Distobuccal ,root ,of ,tooth
,#2


The ,muscles ,of ,facial ,expression ,are ,innervated ,by ,which ,nerve?
A. ,IV
B. ,V
C. ,VII
D. ,VIII ,- ,CORRECT ,ANSWER-C. ,VII

Which ,vein ,receives ,blood ,flow ,from ,the ,superficial ,temporal ,vein ,and ,the ,facial ,vein
,and ,drains ,into ,the ,external ,jugular?