Competitive Exams: Medical Science MCQs (Practice-Test 109 of 135)

    • Assertion (A): Osteoblasts are multinuicleated giant cells found on the surfaces of bone.
    • Reason (R): Multinuicleated giant cells are found where resorption of bone occurs and are placed in shallow depressions in bone known as Howships lacunae.
    1. Both A and Rare true and R is the correct explanation of A

    2. Both A and Rare true but R is not a correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

    • Assertion (A): Intersegmental artery in the adults is found in the middle of a vertebra.
    • Reason (R): The body of a vertebra is formed by the fusion of consecutive segments of sclerotomes.
    1. Both A and Rare true and R is the correct explanation of A

    2. Both A and Rare true but R is not a correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

    • Assertion (A): A midcollicular section in cat leads to decerebrate rigidity. 10 of 1.
    • Reason (R): Muscle tone is the algebraic sum of the activity along the descending facilitatory and inhibitory reticular projections.
    1. Both A and Rare true and R is the correct explanation of A

    2. Both A and Rare true but R is not a correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

    • Assertion (A): Lesion of the pneumotaxic centre increases the depth of inspiration.
    • Reason (R): Pneumotaxic centre is situated at nucleus parabrechialis of upper pons.
    1. Both A and Rare true and R is the correct explanation of A

    2. Both A and Rare true but R is not a correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

    • Assertion (A): Tissue reaction in tuberculosis is recognised as tubercle formation.
    • Reason (R): Tubercle formation is due of the accumulation of large mononuclear phagocytic cells around tubercle bacilli and cell debris as a local allergic reaction.
    1. Both A and Rare true and R is the correct explanation of A

    2. Both A and Rare true but R is not a correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

    • Assertion (A): In acute appendicitis when the appendix is retrocaecal, there is flexion of hip joint.
    • Reason (R): There is rigidity of the quadratus lumborum.
    1. Both A and Rare true and R is the correct explanation of A

    2. Both A and Rare true but R is not a correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

    • Assertion (A): High velocity missile wounds are treated by delayed primary closure.
    • Reason (R): There is considerable injury to deeper structures.
    1. Both A and Rare true and R is the correct explanation of A

    2. Both A and Rare true but R is not a correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

    • Assertion (A): Burgia malayi filariasis is mostly restricted to parts of Kerala.
    • Reason (R): A resistant strian of parasite has developed in Kerala.
    1. Both A and Rare true and R is the correct explanation of A

    2. Both A and Rare true but R is not a correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

    • Assertion (A): A PHC must not hold, more than one months stock of vaccine at a time.
    • Reason (R): The PHC is required to distribute the vaccines on a weekly basis for storage at the sub-centres.
    1. Both A and Rare true and R is the correct explanation of A

    2. Both A and Rare true but R is not a correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

    • Assertion (A): Couple protection rate (CPR) to be achieved by the year 2000 AD is 60%.
    • Reason (R): Net reproduction rate (NPR) to be achieved is 1.5.
    1. Both A and Rare true and R is the correct explanation of A

    2. Both A and Rare true but R is not a correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

    • Assertion (A): Stroke volume increases during muscular exercise.
    • Reason (R): The metabolites produced by the contracting muscles enhance cardiac contractility.
    1. Both A and Rare true and R is the correct explanation of A

    2. Both A and Rare true but R is not a correct explanation of A

    3. A is true but R is false

    4. A is false but R is true

  1. Posteriorly, the membranous part of interventricular septum separates

    1. right ventricle from right atrium

    2. right ventricle from left atrium

    3. left ventricle from right atrium

    4. left ventricle from left atrium

  2. Match List I with List II and select the correct answer.

    List-I List-II
    1. Froamina venerum minimarum

    2. Crista

    3. A-V node

    4. Coronary artery orifices

    1. Sinuses of valsalva

    2. Right and left atrium, right ventricle

    3. Muscular ridge on lateral wall of right atrium internally; corresponds externally to sulcus terminalis

    4. Triangle of Koch

    • A
    • B
    • C
    • D
      • 2
      • 3
      • 1
      • 4
      • 1
      • 2
      • 4
      • 3
      • 1
      • 2
      • 3
      • 4
      • 2
      • 3
      • 4
      • 1
  3. The only muscular connection between myocardium of atria and myocardium of ventricles is

    1. Musculi pectinati

    2. Trabeculae camae

    3. Atrioventricular bundle

    4. Atrioventricular node

  4. Which one of the following arteries (supplying stomach) is not a direct branch from coeliac trunk?

    1. Left gastric

    2. Splenic

    3. Right gastric

    4. Hepatic