Dentosphere : World of Dentistry

# Internal carotid artery at the bifurcation from the common carotid is : A. Lateral to the external carotid B. Medial to external carotid C. Posterior to external carotid D. Anterior to external carotid # Foramen transversarium transmit : A. Internal jugular vein B. Inferior petrosal sinus C. Sigmoid sinus D. Vertebral artery # The cavernous sinus communicates directly with all except : A. Inferior petrosal sinus B. Pterygoid venous plexus C. Veins in orbit D. Sigmoid sinus and straight sinus # Middle thyroid vein drains into : A. External jugular vein B. Anterior jugular vein C. Internal jugular vein D. Brachiocephalic vein # Ophthalmic artery is the branch of __________ part of internal carotid artery . A. Intra cavernous B. Intra petrous C. Intra cerebral D. Extra cranial # Artery palpable at the anterior border of masseter is : A. Maxillar...

# The number of branches of the internal carotid artery in the neck is : A. One B. Two C. Four D. None # Lymph from the teeth drains into all of the following nodes except : A. Sub mandibular nodes B. Deep cervical nodes C. Retropharyngeal nodes D. Sub mental nodes # Facial artery does not supply the : A. Tonsils B. Submandibular gland C. External auditory meatus D. Lower part of the nasal septum # The external jugular vein : A. Lies deep to the Sternocleidomastoid muscle B. It drains into internal jugular vein C. It is formed by the union of the posterior auricular vein and posterior division of the retromandibular vein D. It pierces pre-tracheal layer of cervical fascia before termination # Danger area of face is called so because of connection of facial veins to cavernous sinus through : A. Transverse facial vein B. Superior ophthalmic vein C. Maxillary vein D. Ethmoidal vein # Origin of maxillary artery : A. Angle of man...

# Root lengthening is contributed by : A. Cellular cementum B. Acellular cementum C. Intermediate cementum D. All of the above # The lacunae which contains cementocytes shows canaliculi that is oriented towards : A. The crown B. The dentin side C. The PDL space D. The root apex # Which of the following statements is true ? A. Cementum is thinnest at CEJ (20-50 micrometer) B. Cementum is thickest towards the apex (150-200 micrometer) C. The apical foramen is surrounded by cementum D. All of the above # Which of the following is least mineralised ? A. Cementoid B. Incremental line C. Cellular cementum D. Acellular cementum # The region at which cementum formation is most rapid is : A. Middle B. Coronal C. Apical D. Interradicular # Which dental tissue doesn't contain nerves ? : A. Bone B. Dentin C. Cementum D. Pulp # Inorganic content of cementum is : A. 45 to 50% B. 50 to 55% C. 55 to 60% D. 60 to 65% ...

# Bundle bone is part of : A. Periodontal ligament B. Alveolar bone C. Cementum D. Long bones # The cementoenamel junction is approximately at the level at which the root canal becomes : A. Twisted B. Curved C. Pulp chamber D. Lateral canal # Hardness of fully mineralised cementum is : A. Less than dentin B. More than dentin C. Equal to dentin D. More than enamel # Which one of the following is true of cellular cementum ? A. Forms during root formation B. Forms after the eruption of the tooth C. Seen at the coronal portion of the tooth D. Formation is a slow process # Type of cementum located in the furcation areas of multirooted teeth is : A. Cellular extrinsic fiber cementum B. Cellular intrinsic fiber cementum C. Cellular mixed stratified cementum D. Acellular intrinsic fiber cementum   <<<PREVIOUS PAGE         NEXT PAGE>>>