Physiology Final Exam

29 Questions | Total Attempts: 106

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Physiology Quizzes & Trivia

Final Exam


Questions and Answers
  • 1. 
    Which of the following stimulate the anterior pituitary to release ACTH? 
    • A. 

      CHRH

    • B. 

      GNRH

    • C. 

      CRH

    • D. 

      Dopamine 

  • 2. 
    Which one of the following matches correctly? 
    • A. 

      GH-soft tissues >>increase in strength and length 

    • B. 

      GH-soft tissues>>hyperplasia , hypertrophy 

    • C. 

      GH-skeleton>>  increase in thickness before puberty 

    • D. 

      GH-skeleton >>increase in in length after puberty 

  • 3. 
    The largest pure indocrine gland:
    • A. 

      Pancreas 

    • B. 

      Thyroid gland 

    • C. 

      Pituitary gland

    • D. 

      Adrenal gland 

  • 4. 
    Which one of the following makes up T4
    • A. 

      Tyrosine + 3 iodine atoms

    • B. 

      Tyrosine onlt

    • C. 

      Tyrosine +2 iodine atoms 

    • D. 

      Tyrosine +4 iodine atoms 

  • 5. 
    Which of the following is not correct? 
    • A. 

      T4 is more active than T3

    • B. 

      Moat of the thyroid hormones are T4

    • C. 

      T3 and T4 are generated from follicular cells

    • D. 

      Could also be called as thyroxine

  • 6. 
    The most important member in the mineral corticoid family is :
    • A. 

      Cortisol

    • B. 

       adrenal androgens

    • C. 

      Aldosterone

    • D. 

      None of the above

  • 7. 
    Aldosteron’s target tissues are :
    • A. 

      Proximal tubule

    • B. 

      Loope of henle 

    • C. 

      Distal tubule

    • D. 

      Distale and collecting tubules

  • 8. 
    Factors that increase aldosterone secretion are
    • A. 

      Increase K+ in the blood

    • B. 

      Renin angrotensin system (RAS) 

    • C. 

      Increase  Na+ in the blood

    • D. 

      A+B

  • 9. 
    Which of the following is an effect of Cortisol 
    • A. 

      Stimulates glucogenesis

    • B. 

      Stimulates protein degradation 

    • C. 

      Stimulates lypolysis

    • D. 

      All of the above 

  • 10. 
    Which of the following endocrine organs located in the brain? 
    • A. 

      Hypothalamus 

    • B. 

      Gonads

    • C. 

      Thyroid gland 

    • D. 

      Pancreas 

  • 11. 
    Autorythamic cells have:
    • A. 

      Unstable resting potential

    • B. 

      Stable resting potentials at - 70mv

    • C. 

      Stable resting potentials at - 90 mv

    • D. 

      None of the above 

  • 12. 
    The only way to spread the action potential from the atria to the ventricles is by:
    • A. 

      Fibrous tissue

    • B. 

      Gap junctions

    • C. 

      SA node

    • D. 

      AV node

  • 13. 
    Which of the following is not an effect of the parasympathetic simulation
    • A. 

      Decreases rate of the depolarization threshold

    • B. 

      Decrease heart rate

    • C. 

      Decrease AV nodal delay

    • D. 

      Decreases excitability

  • 14. 
    The P wave in an electrodiagram correspondes to:
    • A. 

      Ventricular depolarization

    • B. 

      Atrial depolarization

    • C. 

      Atrial repolarization

    • D. 

      Ventricular repolarization

  • 15. 
    The lub sounds of the heart is caused by:
    • A. 

      Ventricular diastole

    • B. 

      Closure of the AV

    • C. 

      Ventricular systole

    • D. 

      B+C

  • 16. 
    Which of the following is a heart rate influencing factor :
    • A. 

      Preload

    • B. 

      After load

    • C. 

      Parasympathetic stim

    • D. 

      Contactility

  • 17. 
    Which of the following matches incorrectly :
    • A. 

      Ventricular diastole - - - >80 mmHg

    • B. 

      Systolic blood pressure - - - >120 mmHg

    • C. 

      Ventricular systole----> 120 mmHg

    • D. 

      Diastolic blood pressure ---->80 mmHg

  • 18. 
    Heart rate is determined by:
    • A. 

      The rate of repolarization in autorythamic cells

    • B. 

      The rate of depolarization in autorythamic cells

    • C. 

      The rate of depolarization in contractile cells

    • D. 

      The rate of repolarization in contractile cells

  • 19. 
    Mean atrial pressure (MAP) equals to:
    • A. 

      Diastole pressures +1/3 (Diastole - systole) 

    • B. 

      Systole pressure +1/3(diastole - systole) 

    • C. 

      Diastolic pressure +1/3(pulse pressure)

    • D. 

      Systolic pressure +1/3(pulse pressure)

  • 20. 
    Total peripheral resistance stands for :
    • A. 

      Venulse

    • B. 

      Arteries

    • C. 

      Veins

    • D. 

      Arterioles

  • 21. 
    Which of the following is not a function of the respiratory system ?
    • A. 

      Enhances venous system

    • B. 

      Detoxifies fats

    • C. 

      Enables speech, singing, and the vocalizations.

    • D. 

      Provides a route for water loss and heat elimination.

  • 22. 
    Which of the following is the correct passage of inhaled air ? 
    • A. 

      Pharynx—larynx—trachea

    • B. 

      Larynx — pharynx— trachea

    • C. 

      Bronchioles—bronchi—alveoli

    • D. 

      Bronchi—bronchioles—trachea

  • 23. 
    The functional unit of the lungs is :-
    • A. 

      Trachea

    • B. 

      Bronchi

    • C. 

      Alveoli

    • D. 

      Bronchus

  • 24. 
    The difference between the intra-alveolar pressure and the intrapleural pressure is:- 
    • A. 

      Atmospheric pressure

    • B. 

      Transmular pressure

    • C. 

      Intra-alveolar pressure

    • D. 

      Positive pressure

  • 25. 
    Boyle’s law states:-
    • A. 

       pressure and volume are directly proportional

    • B. 

      Pressure and volume are inversely proportional 

    • C. 

      Pressure and area are directly proportional

    • D. 

      Volume and area are inversely proportional