Dentistry Trivia Questions Test! Quiz

20 Questions | Total Attempts: 398

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Dentistry Trivia Questions Test! Quiz - Quiz

This quiz is not attempting to prepare you for any university exams and it does not cover all of the week's material, It is only a quick training to help you somehow assess your level of understanding of limited knowledge from the week's lectures


Questions and Answers
  • 1. 
    Which of the following structure of the bony labyrinth (inner ear) that converts mechanical energy into electrical energy?
    • A. 

      Vestibule

    • B. 

      Cochlea

    • C. 

      Semicircular canals

    • D. 

      Chorda tympani

  • 2. 
    In the Cochlea, the Scala vestibule ends at?
    • A. 

      Organ of Corti

    • B. 

      Scala tympani

    • C. 

      Oval window

    • D. 

      Round window

  • 3. 
    Which step of the following is not in its order regarding the mechanism of hearing?
    • A. 

      Sound waves enter the outer ear.

    • B. 

      Ear drum vibrates with the incoming sound.

    • C. 

      Electrical signal sent up the Cochlear nerve to the brain.

    • D. 

      Stapes move in and out of the oval window of the cochlea.

  • 4. 
    A 24 years old man lifting a 20kg dumbbells, what type of contraction firstly begins? And choose the tensions state.
    • A. 

      Isotonic, increases.

    • B. 

      Isometric, increases.

    • C. 

      Isotonic, stays constant.

    • D. 

      Isometric, stays constant.

  • 5. 
    4- Ali is facing a difficulty in moving his foot towards the plantar surface, which direction is he having problem with:
    • A. 

      Dorsiflexion.

    • B. 

      Plantar flexion.

    • C. 

      Flexion.

    • D. 

      Extension.

  • 6. 
    The cells that tear down and remodel the bone are the….?
    • A. 

      Osteoblasts

    • B. 

      Osteocytes

    • C. 

      Osteoclasts

    • D. 

      Macrophages

  • 7. 
    In regard to bone cell development which of the following sequences is correct?
    • A. 

      Osteoblasts-osteoclasts-osteocyte

    • B. 

      Osteogenic cells-osteoclasts-osteocytes

    • C. 

      Osteogenic-osteocyte-osteoclast

    • D. 

      Osteogenic-osteoblasts-osteocyte

  • 8. 
    A developmental disorder in which pituitary produces excess growth hormone and the patients grows abnormally large is known as?
    • A. 

      Dwarfism

    • B. 

      Achondroplasia- Dwarfism

    • C. 

      Acromegaly

    • D. 

      Osteogenesis imperfecta

  • 9. 
    Permanent maxillary molars have _____ roots.
    • A. 

      A. Three

    • B. 

      B. Four

    • C. 

      C. Two

    • D. 

      D. One

  • 10. 
    A 38-year-old patient complained of acute dental pain. The attending dentist found penetrating dental caries (dental decay) affecting one of the mandibular molar teeth. Which nerve would the dentist need to anesthetize to work on that tooth?
    • A. 

      Lingual

    • B. 

      Inferior alveolar

    • C. 

      Buccal

    • D. 

      Mental

    • E. 

      Mylohyoid

  • 11. 
    Incapacity to protrude the mandible indicates a dysfunction of which muscle?
    • A. 

      Anterior belly of digastric

    • B. 

      Buccinator

    • C. 

      Lateral pterygoid

    • D. 

      Mylohyoid

    • E. 

      Temporalis

  • 12. 
    The largest cusp in the occlusal surface of lower 1st permanent molar is:
    • A. 

      Mesiobuccal cusp

    • B. 

      Mesiolingual cusp

    • C. 

      Distobuccal cusp

    • D. 

      Distolingual cusp

  • 13. 
    The geometrical form of the occlusal surface of lower 1st permanent molar is:
    • A. 

      Rhomboid

    • B. 

      Square

    • C. 

      Diamond

    • D. 

      Hexagonal

  • 14. 
    Lower 3rd molar may be similar to the 1st permanent molar, but differ than the 1st permanent molar in: 
    • A. 

      It has supplemental grooves and no distal contact area.

    • B. 

      It has 5 cusps (3 buccal and 2 lingual).

    • C. 

      It has 2 roots (one mesial and one distal).

    • D. 

      None of the above

  • 15. 
    The permanent 1st molar is the key of occlusion because of all the following reasons except: 
    • A. 

      It is the last permanent tooth to develop and erupt.

    • B. 

      It is the largest permanent tooth.

    • C. 

      Its eruption is guided to its correct position just distal to the deciduous molars

    • D. 

      Its eruption can never be disturbed since it has no predecessor

  • 16. 
    When upper 8 is heart-shaped, which cusp is the smallest-or even absent? 
    • A. 

      Mesiobuccal

    • B. 

      Mesiolingual

    • C. 

      Distobuccal

    • D. 

      Distolingual

  • 17. 
    When the eye is the neutral position, this muscle is responsible just for adduction.
    • A. 

      Lateral rectus muscle

    • B. 

      Inferior oblique muscle

    • C. 

      Superior rectus muscle

    • D. 

      Superior oblique muscle

    • E. 

      Medial rectus muscle

  • 18. 
    The following are the action of superior oblique muscle: 
    • A. 

      Extortion

    • B. 

      Depression

    • C. 

      Adduction

    • D. 

      Elevation

  • 19. 
    You are testing the extraocular muscles and their innervation in a patient who periodically experiences double vision. When you ask him to turn his right eye inward toward his nose and look downward he is able to look inward, but not down. Which nerve is most likely involved? 
    • A. 

      Abducent

    • B. 

      Nasociliary

    • C. 

      Oculomotor, inferior division

    • D. 

      Oculomotor, superior division

    • E. 

      Trochlear

  • 20. 
    The cranial nerves that innervate the extrinsic ocular (eye) muscles include the:
    • A. 

      Occulomotor, abducent, trochlear nerves

    • B. 

      Abducent, facial, and trigeminal nerves

    • C. 

      Trochlear, oculomotor and facial nerves

    • D. 

      Occulomotor, facial and trigeminal nerves

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