Download NTRUHS 1st Year MBBS 2024 October Physiology Paper I MCQs Question Paper

Q.P. CODE : M102A020

Dr. NTR UNIVERSITY OF HEALTH SCIENCES: AP : VIJAYAWADA-520008

MBBS DEGREE EXAMINATION - OCTOBER, 2024

--- Content provided by‍ FirstRanker.com ---

FIRST M.B.B.S. EXAMINATION

PHYSIOLOGY PAPER- I (SET-C)

(Multiple Choice Questions)

Max Marks: 20

Time: 20 Minutes

--- Content provided by FirstRanker.com ---

Note: Answer all questions.

SECTION-I (MCQs - 20 MARKS)

1X2=20

1. Erythrocyte sedimentation rate (ESR) is decreased in
   1. Iron deficiency anaemia
   2. Arthritis

   --- Content provided by‌ FirstRanker.com ---

   3. Tuberculosis
   4. All of these
2. Erythropoiesis is inhibited by
   1. Thyroxine
   2. Estrogen

   --- Content provided by‍ FirstRanker.com ---

   3. Intrinsic factor
   4. Interleukin 1
3. Phagocytosis is done by
   1. Lymphocyte
   2. Monocyte

   --- Content provided by⁠ FirstRanker.com ---

   3. Basophil
   4. Eosinophil
4. Abnormal Hb is
   1. Hb F
   2. Hb A

   --- Content provided by FirstRanker.com ---

   3. Hb S
   4. Embryonic Hb
5. In the kidney, Aldosterone mainly acts upon
   1. Proximal convoluted tubule
   2. Loop of Henle

   --- Content provided by​ FirstRanker.com ---

   3. Glomerulus
   4. Collecting duct
6. Clot retraction is a function of
   1. Fibrinogen
   2. Prothrombin

   --- Content provided by‍ FirstRanker.com ---

   3. Plasminogen
   4. Platelet
7. How much sodium is normally reabsorbed in PCT?
   1. 67%
   2. 77%

   --- Content provided by‌ FirstRanker.com ---

   3. 97%
   4. 50%
8. Which of the following increases the glomerular filtration rate (GFR)?
   1. Increase in hydrostatic pressure of Bowman's capsule
   2. Decrease in glomerular capillary hydrostatic pressure

   --- Content provided by‍ FirstRanker.com ---

   3. Decrease in capillary permeability of
   4. Decrease in glomerular capillary oncotic pressure
9. The content of which of the following gases is maximum in inspired air?
   1. Oxygen
   2. Nitrogen

   --- Content provided by​ FirstRanker.com ---

   3. Carbon dioxide
   4. Carbon monoxide
10. Loop of Henle handles the following EXCEPT:
    1. Na+
    2. H+

    --- Content provided by​ FirstRanker.com ---

    3. CI-
    4. Urea
11. Normal ventilation-perfusion ratio is about
    1. 0.8
    2. 1.2

    --- Content provided by‌ FirstRanker.com ---

    3. 0.5
    4. 2.5
12. Which of the following acts as a counter-current exchanger?
    1. Vasa recta
    2. Thick ascending limb of loop of Henle

    --- Content provided by‌ FirstRanker.com ---

    3. Thin descending limb of loop of Henle
    4. Collecting duct
13. The maximum volume of air that can be expired after a maximal inspiratory effort
    1. Vital capacity
    2. Tidal volume

    --- Content provided by‌ FirstRanker.com ---

    3. Expiratory reserve volume
    4. Residual volume
14. Most important stimulus to peripheral chemoreceptors is
    1. Decreased PO2
    2. Decreased CO2

    --- Content provided by​ FirstRanker.com ---

    3. Increased pH
    4. Increased HCO3
15. The conduction velocity is lowest in
    1. HIS bundle
    2. SA node

    --- Content provided by⁠ FirstRanker.com ---

    3. Ventricular muscle
    4. Internodal pathways
16. Increased airway resistance is caused by all EXCEPT:
    1. Forced expiration
    2. High lung volume

    --- Content provided by FirstRanker.com ---

    3. Dense air
    4. Breathing dust particles
17. If end diastolic volume is 160 ml and stroke volume is 80 ml, the ejection fraction is
    1. 40%
    2. 50%

    --- Content provided by⁠ FirstRanker.com ---

    3. 60%
    4. 70%
18. Cardiac muscle cannot be tetanized because of
    1. Rich blood supply
    2. Rich innervation

    --- Content provided by​ FirstRanker.com ---

    3. Longer absolute refractory period
    4. High myoglobin content
19. End diastolic volume increases when
    1. Intrathoracic pressure becomes more negative
    2. Total blood volume decreases

    --- Content provided by‌ FirstRanker.com ---

    3. Right atrial pressure increases
    4. Ventricular compliance decreases
20. The 'v' wave of jugular venous pressure (JVP) curve is caused by
    1. Closure of the tricuspid valve
    2. Closure of the aortic valve

    --- Content provided by FirstRanker.com ---

    3. Contraction of the atrium
    4. Rise in pressure due to venous return

FirstRanker.com

--- Content provided by‌ FirstRanker.com ---