DMA's PHYSIOLOGY MCQ's PG Q&A SET - 2 09-DEC-17
Published on Dec. 9, 2017, 5:18 p.m.


Q.1)    Critical closing volume (CV) of lungs:
a)    Achieved at the end of max inspiration
b)    Achieved at the end of max expiration
c)    Volume remaining at the end of FRC measurement
d)    Close to RV

Q.2)    What is the effect of moderate exercise on cerebral blood flow?
a)    Does not change
b)    Increases
c)    Decreases
d)    Initially decreases then increases

Q.3)    If external cues are removed, what will happen to sleep wake cYcle:
a)    Unchanged
b)    Greater than 24 ks
c)    Less than 24hrs
d)    Greater than 12 hrs

Q.4)    CSF pressure is mainly regulated by:
a)    Rate of CSF formation
b)    Rate of CSF absorPtion
c)    Cerebral blood flow
d)    Venous Pressure

Q.5)    Lewis triple response is mediated by :
a)    Axon reflex
b)    Histamine release from mast cells
c)    InjurY to endothelium
d)    None of the above

Q.6)    Why brain is considered to be "responsive"?
a)    It has control centres for all motor actions andsensorY inPut Everytell-of brain has got specific functionIt is a close system and so not influenced by changes occurrilg outsideIts functions are profoundly affected byTheprimLy action of Nitric oxide (NO) in the gastrointesiinal tract is.
b)    Vasodilatation.
c)    Vasoconstriction
d)    Gastrointestinal smooth muscle relaxation
e)    Gastrointestinal slow smooth muscle contraction

Q.7)    maximum water reabsorption in the Gastrointestinal tract occurs in [AI-2011]
a)    Stomach
b)    Jejunum
c)    Ileum
d)    Colon

Q.8)    Small airways have laminar air flow because:
a)    Relmold's number > 2000
b)    Very small diameter
c)    ExtremelY low velocitY
d)    Low cross sectional area.

Q.9)    Pulmonary Compliance is decreased in all of the following conditions, Except:
a)    PulmonarYCongestion
b)    COPD
c)    Decreased Surfactant
d)    PulmonarY Fibrosis

Q.10)    A man connecied to a body plethysmograph for estimation of FRC inspires against a closbd glottis Which of the following statements is true
a)    The pressure in both the lungs and the box increases
b)    The pressure in both the lungs and the box decreases
c)    The pressure in the lungs decreases, but that in the box increases
d)    The pressure in the lungs increases, but that in iire box ciecreases


Answers
 
Q.1) C
Q.2) A
Q.3) B
Q.4) B
Q.5) B
Q.6) D
Q.7) C
Q.8) B
Q.9) C
Q.10) B    

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