MCQ
In human, the right lungs has $.........$ lobes:
- ✓$3$
- B$4$
- C$5$
- D$2$
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$(i)$ is released by sympathetic fibers
$(ii)$ is released by parasympathetic fibers
$(iii)$ increases the heart rate
$(iv)$ decreases blood pressure.
Which of the above statements are correct ?