Competitive Exams: Medical Science MCQs (Practice-Test 124 of 135)

  1. Match List I with List II and select the correct answer:

    List-I (sensory nerve endings) List-II (Modalities)
    1. Ruffini endings

    2. Meissners corpuscle

    3. Pacinian corpuscle

    4. Free nerve endings

    1. Pressure

    2. Touch

    3. Pain

    4. Temperature

    • A
    • B
    • C
    • D
      • 2
      • 4
      • 1
      • 3
      • 4
      • 2
      • 3
      • 1
      • 4
      • 2
      • 1
      • 3
      • 2
      • 4
      • 3
      • 1
  2. Cleavage lines in the skin are due to

    1. Collagen fibres

    2. elastic fibres

    3. Dermal papillae

    4. Reticular fibres

  3. During the formation of a vertebra, which one of the following is intersegmental in position?

    1. Intervertebral disc

    2. Artery

    3. Spinal nerve

    4. Myotome

  4. Consider the following statements: Development of lung tissue medial to the right common cardinal vein results in

    1. accessory lobe

    2. azygos lobe.

    3. lobe of azygos vein.

    Of these statements

    1. 1, 2 and 3 are correct

    2. 1 and 2 are correct

    3. 2 and 3 are correct

    4. 1 and 3 are correct

  5. The foetus born during the 6th month of intrauterine life will NOT be able to survive due to

    1. Lack of subcutaneous connective tissue

    2. Lack of co-ordination between the respiratory and the nervous system

    3. Absence or insufficient amount of surfactant

    4. Lack of sufficient capillaries

  6. The existence of the axon reflex proves that

    1. It has separate sensory and motor pathways inside it

    2. The soma of the neuron acts as the reflex centre of the neuron

    3. It can conduct impulses both orthodromically and antidromically

    4. It has more than one type of neurotransmitters as its endings

  7. Match List I with List II and select the correct answer:

    List-I (EEG wave) List-II (Characteristic)
    1. a wave

    2. β wave

    3. ? wave

    4. d wave

    1. Increased when eyes are opened

    2. Occurs mainly in children

    3. Occurs in very deep sleep

    4. Disappears when eyes are opened

    • A
    • B
    • C
    • D
      • 1
      • 4
      • 2
      • 3
      • 4
      • 1
      • 2
      • 3
      • 4
      • 1
      • 3
      • 2
      • 1
      • 4
      • 3
      • 2
  8. All of the following manifestations are seen in cases of cerebellar damage in human beings EXCEPT?

    1. Loss of non-declarative/reflexive memory

    2. Loss of adjustment of vestibule-ocular reflex

    3. Static tremour and rigidity

    4. Ataxia, atonia and asthenia

  9. Match List I with List II and select the correct answer:

    List-I (Parts of basal ganglia and related areas) List-II (Disorder)
    1. Lentiform nucleus

    2. Subthalamic nucleus

    3. Caudate nucleus

    4. Substantia nigra

    1. Chorea

    2. Hemiballismus

    3. Athetosis

    4. Parkinsonism

    • A
    • B
    • C
    • D
      • 3
      • 1
      • 2
      • 4
      • 4
      • 1
      • 2
      • 3
      • 4
      • 3
      • 1
      • 2
      • 3
      • 2
      • 1
      • 4
  10. Which of the following pairs are correctly matched?

      • Testosterone
      • Secondary sex characteristics
      • Leutinishing
      • Hormone Stimulation of Leydig cells
      • Follicle
      • Stimulating Stimulation of Sertoli cells hormone
      • N/A
      • N/A

    Select the correct answer using the codes given below:

    1. 1, 2 and 3

    2. 1 and 2

    3. 1 and 3

    4. 2 and 3

  11. The correct sequence of the given electromechanical events as they occur during the cardiac cycle is

    1. 1st heart sound, QRS complex of EKG, c-wave of jugular pulse

    2. QRS complex of EKG, c-wave of jugular pulse, 1st heart sound

    3. C-wave of jugular pulse, 1st heart sound, QRS complex of EKG

    4. QRS complex of EKG, 1st heart sound, c-wave of jugular wave

  12. Consider the following statements: Major portion of ventricular filling

    1. is during rapid filling phase of ventricle.

    2. occurs during atrial systole.

    3. is possible even if atria fail as a pump.

    Of these statements

    1. 1, 2 and 3 are correct

    2. 1 and 2 are correct

    3. 2 and 3 are correct

    4. 1 and 3 are correct

  13. In an electrocardiogram recorded from the standard limb leads, the QRS complex was smallest in lead II. Also, it was predominantly positive (R taller then S wave) in lead I and predominantly negative R shorter than S wave in lead III. The mean electrical axis of the heart in this case must be closest to

    1. + 60 degrees

    2. + 90 degrees

    3. + 120 degrees

    4. 30 degrees

  14. Which one of the following is the correct sequence in increasing order of their basal blood supply (ml/min/100 g of tissue)?

    1. Heart, brain, kidney

    2. Brain, kidney, heart

    3. Kidney, heart, brain

    4. Brain, heart, kidney

  15. The following physiological changes appear when a person is suddenly transported to an altitude of 3000 m (nearly 10, 000 feet)

    1. Hyperventilation

    2. Decrease in arterial pO2.

    3. Stimulation of aortic and carotid bodies.

    4. Increase in arterial pO2.

    The correct sequence in which these changes occur is

    1. 2, 3, 4, 1

    2. 2, 3, 1, 4

    3. 3, 2, 1, 4

    4. 3, 2, 4, 1