Body Fluids and Circulations

Multiple Choice Questions

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Rate of heart beat is determined by

  • Purkinje Fibres

  • Papillary muscles

  • SA-node

  • AV-node

C.

SA-node

The contraction of heart depends on small cluster of specialised muscle cells which are embedded in the upper wall of the right atrium. This cluster of cells is called the sino-atrial node (SA-node). It automatically and rhythmically sends out impulses that initiate each heart beat.

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    Heparin is synthesized in

    • liver

    • kidney

    • saliva

    • pancreas

    Answer

    The vitamin which is essential for blood clotting is

    • Vitamin- A

    • Vitamin- B

    • Vitamin- C

    • Vitamin- K

    Answer

    A man of 'A' blood group marries a woman of 'AB' blood group. Which type of progeny would indicate that man is heterozygous?

    • O

    • B

    • A

    • AB

    Answer

    The blood group with antibody-a and antibody-b is

    • B

    • A

    • O

    • AB

    Answer
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    In blood, CO2 is transported majorly as

    • sodium carbonate

    • carboxyhaemoglobin

    • bicarbonate

    • CO2 as such

    Answer

    The leucocytes contain which of the following in large quantity?

    • Basophils

    • Neutrophils

    • Eosinophils

    • Monocytes

    Answer
    'Bundle of His' are

    • nervous tissue supplied to ventricles

    • nervous tissue supplied to heart

    • muscular tissue supplied to ventricle

    • muscular tissue supplied to heart

    Answer

    Rh factor is present in

    • all vertebrates

    • all mammals

    • all reptiles

    • man and rhesus monkey only

    Answer
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    Hamburger shift is also known as

    • bicarbonate shift

    • chloride shift

    • potassium shift

    • All of the above

    Answer
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