8
MCQ (Single Correct Answer)
Which one of the following blood cells is involved in antibody production.
A
B-lymphocytes
B
T-lymphocytes
C
RBC
D
neutrophils
9
MCQ (Single Correct Answer)
The cardiac impulse is initiated and conducted further upto ventricle. The correct sequence of conduction of impulse is
A
| SA Node | AV Node | Purkinje fiber | AV Bundle |
B
| SA Node | Purkinje fiber | AV Node | AV Bundle |
C
| SA Node | AV Node | AV Bundle | Purkinje fiber |
D
| SA Node | Purkinje fiber | AV Bundle | AV Node |
10
MCQ (Single Correct Answer)
Agranulocytes responsible for immune response of the body are
A
basophils
B
neutrophils
C
eosinophils
D
Iymphocytes
11
MCQ (Single Correct Answer)
The second heart sound (dubb) is associated with the closure of
A
tricuspid valve
B
semilunar valve
C
bicuspid valve
D
tricuspid and bicuspid valve
12
MCQ (Single Correct Answer)
Which of the following correctly explains a phase/event in cardiac cycle in a standard electrocardiogram?
A
QRS complex indicates atrial contraction.
B
QRS complex indicates ventricular contraction.
C
Time between S and T represents atrial systole.
D
P-wave indicates beginning of ventricular contraction.