1
NEET 2013
MCQ (Single Correct Answer)
+4
-1
The diagram given here is the standard ECG of a normal person. The P-wave represents the
NEET 2013 Biology - Body Fluids and Its Circulation Question 48 English
A
beginning of the systole
B
end of systole
C
contraction of both the atria
D
initiation of the ventricular contraction.
2
NEET 2013
MCQ (Single Correct Answer)
+4
-1
The H-zone in the skeletal muscle fibre is due to
A
the central gap between actin filaments extending through myosin filaments in the A-bond
B
extension of myosin filaments in the central portion of the A-band
C
the absence of myofibrils in the central portion of A-band
D
the central gap between myosin filaments in the A-band.
3
NEET 2013
MCQ (Single Correct Answer)
+4
-1
Select the correct statement with respect to locomotion in humans.
A
The vertebral column has 10 thoracic vertebrae.
B
The joint between adjacent vertebrae is a fibres joint.
C
A decreased level of progesterone causes osteoporosis in old people.
D
Accumulation of uric acid crystals in joints causes their inflammation.
4
NEET 2013
MCQ (Single Correct Answer)
+4
-1
The characteristic and an example of a synovial joint in humans is
A
Characteristics Examples
Fluid filled synovial cavity
between two bones
Joint between atlas
and axis
B
Characteristics Examples
Lymph filled between two
bones, limited movement
Gliding joint between
carpals
C
Characteristics Examples
Fluid cartilage between two
bones, limited movements
Knee joint                
D
Characteristics Examples
Fluid filled between two
joints, provides cushion
Skull bones    
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