MCQ
In mammalian kidney Henle's loop is present in
- ACortex
- BCaput epididymus
- ✓Medulla
- DUreter
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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 ?